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Diffstat (limited to 'src/devices/machine/spg2xx.cpp')
-rw-r--r--src/devices/machine/spg2xx.cpp2451
1 files changed, 418 insertions, 2033 deletions
diff --git a/src/devices/machine/spg2xx.cpp b/src/devices/machine/spg2xx.cpp
index a325346558d..3a3a22abac3 100644
--- a/src/devices/machine/spg2xx.cpp
+++ b/src/devices/machine/spg2xx.cpp
@@ -17,57 +17,38 @@
DEFINE_DEVICE_TYPE(SPG24X, spg24x_device, "spg24x", "SPG240-series System-on-a-Chip")
DEFINE_DEVICE_TYPE(SPG28X, spg28x_device, "spg28x", "SPG280-series System-on-a-Chip")
-#define LOG_IO_READS (1U << 1)
-#define LOG_IO_WRITES (1U << 2)
#define LOG_UNKNOWN_IO (1U << 3)
#define LOG_IRQS (1U << 4)
#define LOG_VLINES (1U << 5)
-#define LOG_GPIO (1U << 6)
-#define LOG_UART (1U << 7)
-#define LOG_I2C (1U << 8)
#define LOG_DMA (1U << 9)
-#define LOG_SEGMENT (1U << 10)
-#define LOG_WATCHDOG (1U << 11)
-#define LOG_TIMERS (1U << 12)
-#define LOG_SPU_READS (1U << 13)
-#define LOG_SPU_WRITES (1U << 14)
-#define LOG_UNKNOWN_SPU (1U << 15)
-#define LOG_CHANNEL_READS (1U << 16)
-#define LOG_CHANNEL_WRITES (1U << 17)
-#define LOG_ENVELOPES (1U << 18)
-#define LOG_SAMPLES (1U << 19)
-#define LOG_RAMPDOWN (1U << 20)
-#define LOG_BEAT (1U << 21)
#define LOG_PPU_READS (1U << 22)
#define LOG_PPU_WRITES (1U << 23)
#define LOG_UNKNOWN_PPU (1U << 24)
-#define LOG_IO (LOG_IO_READS | LOG_IO_WRITES | LOG_IRQS | LOG_GPIO | LOG_UART | LOG_I2C | LOG_DMA | LOG_TIMERS | LOG_UNKNOWN_IO)
-#define LOG_CHANNELS (LOG_CHANNEL_READS | LOG_CHANNEL_WRITES)
-#define LOG_SPU (LOG_SPU_READS | LOG_SPU_WRITES | LOG_UNKNOWN_SPU | LOG_CHANNEL_READS | LOG_CHANNEL_WRITES \
- | LOG_ENVELOPES | LOG_SAMPLES | LOG_RAMPDOWN | LOG_BEAT)
+#define LOG_IO (LOG_IRQS | LOG_DMA | LOG_UNKNOWN_IO)
#define LOG_PPU (LOG_PPU_READS | LOG_PPU_WRITES | LOG_UNKNOWN_PPU)
-#define LOG_ALL (LOG_IO | LOG_SPU | LOG_PPU | LOG_VLINES | LOG_SEGMENT)
+#define LOG_ALL (LOG_IO | LOG_PPU | LOG_VLINES )
-#define VERBOSE (LOG_UART | LOG_UNKNOWN_IO)
+#define VERBOSE (0)
#include "logmacro.h"
#define SPG_DEBUG_VIDEO (0)
-#define SPG_DEBUG_AUDIO (0)
-#define IO_IRQ_ENABLE m_io_regs[0x21]
-#define IO_IRQ_STATUS m_io_regs[0x22]
#define VIDEO_IRQ_ENABLE m_video_regs[0x62]
#define VIDEO_IRQ_STATUS m_video_regs[0x63]
spg2xx_device::spg2xx_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, type, tag, owner, clock)
- , device_sound_interface(mconfig, *this)
+ , device_mixer_interface(mconfig, *this, 2)
+ , m_spg_audio(*this, "spgaudio")
+ , m_spg_io(*this, "spgio")
+ , m_rowscrolloffset(15)
, m_porta_out(*this)
, m_portb_out(*this)
, m_portc_out(*this)
, m_porta_in(*this)
, m_portb_in(*this)
, m_portc_in(*this)
+ , m_adc_in{{*this}, {*this}}
, m_eeprom_w(*this)
, m_eeprom_r(*this)
, m_uart_tx(*this)
@@ -97,212 +78,234 @@ void spg2xx_device::map(address_map &map)
map(0x002900, 0x002aff).ram().share("scrollram");
map(0x002b00, 0x002bff).ram().share("paletteram");
map(0x002c00, 0x002fff).ram().share("spriteram");
- map(0x003000, 0x0037ff).rw(FUNC(spg2xx_device::audio_r), FUNC(spg2xx_device::audio_w));
- map(0x003d00, 0x003eff).rw(FUNC(spg2xx_device::io_r), FUNC(spg2xx_device::io_w));
+ map(0x003000, 0x0031ff).rw(m_spg_audio, FUNC(spg2xx_audio_device::audio_r), FUNC(spg2xx_audio_device::audio_w));
+ map(0x003200, 0x0033ff).rw(m_spg_audio, FUNC(spg2xx_audio_device::audio_phase_r), FUNC(spg2xx_audio_device::audio_phase_w));
+ map(0x003400, 0x0037ff).rw(m_spg_audio, FUNC(spg2xx_audio_device::audio_ctrl_r), FUNC(spg2xx_audio_device::audio_ctrl_w));
+ map(0x003d00, 0x003d2f).rw(m_spg_io, FUNC(spg2xx_io_device::io_r), FUNC(spg2xx_io_device::io_w));
+ map(0x003d30, 0x003dff).rw(m_spg_io, FUNC(spg2xx_io_device::io_extended_r), FUNC(spg2xx_io_device::io_extended_w));
+ map(0x003e00, 0x003e03).rw(FUNC(spg2xx_device::dma_r), FUNC(spg2xx_device::dma_w));
}
void spg2xx_device::device_start()
{
+ for (uint8_t i = 0; i < 32; i++)
+ {
+ m_rgb5_to_rgb8[i] = (i << 3) | (i >> 2);
+ }
+ for (uint16_t i = 0; i < 0x8000; i++)
+ {
+ m_rgb555_to_rgb888[i] = (m_rgb5_to_rgb8[(i >> 10) & 0x1f] << 16) |
+ (m_rgb5_to_rgb8[(i >> 5) & 0x1f] << 8) |
+ (m_rgb5_to_rgb8[(i >> 0) & 0x1f] << 0);
+ }
m_porta_out.resolve_safe();
m_portb_out.resolve_safe();
m_portc_out.resolve_safe();
m_porta_in.resolve_safe(0);
m_portb_in.resolve_safe(0);
m_portc_in.resolve_safe(0);
+ m_adc_in[0].resolve_safe(0x0fff);
+ m_adc_in[1].resolve_safe(0x0fff);
m_eeprom_w.resolve_safe();
m_eeprom_r.resolve_safe(0);
m_uart_tx.resolve_safe();
m_chip_sel.resolve_safe();
- m_tmb1 = timer_alloc(TIMER_TMB1);
- m_tmb2 = timer_alloc(TIMER_TMB2);
- m_tmb1->adjust(attotime::never);
- m_tmb2->adjust(attotime::never);
-
m_screenpos_timer = timer_alloc(TIMER_SCREENPOS);
m_screenpos_timer->adjust(attotime::never);
- m_audio_beat = timer_alloc(TIMER_BEAT);
- m_audio_beat->adjust(attotime::never);
+ save_item(NAME(m_hide_page0));
+ save_item(NAME(m_hide_page1));
+ save_item(NAME(m_hide_sprites));
+ save_item(NAME(m_debug_sprites));
+ save_item(NAME(m_debug_blit));
+ save_item(NAME(m_debug_palette));
+ save_item(NAME(m_sprite_index_to_debug));
- m_stream = stream_alloc(0, 2, 44100);
+ save_item(NAME(m_dma_regs));
- m_channel_debug = -1;
+ save_item(NAME(m_video_regs));
+ save_item(NAME(m_sprite_limit));
+ save_item(NAME(m_pal_flag));
}
void spg2xx_device::device_reset()
{
- memset(m_audio_regs, 0, 0x800 * sizeof(uint16_t));
- memset(m_sample_shift, 0, 16);
- memset(m_sample_count, 0, sizeof(uint32_t) * 16);
- memset(m_sample_addr, 0, sizeof(uint32_t) * 16);
- memset(m_channel_rate, 0, sizeof(double) * 16);
- memset(m_channel_rate_accum, 0, sizeof(double) * 16);
- memset(m_rampdown_frame, 0, sizeof(uint32_t) * 16);
- memset(m_envclk_frame, 4, sizeof(uint32_t) * 16);
- memset(m_envelope_addr, 0, sizeof(uint32_t) * 16);
-
memset(m_video_regs, 0, 0x100 * sizeof(uint16_t));
- memset(m_io_regs, 0, 0x200 * sizeof(uint16_t));
-
- m_io_regs[0x23] = 0x0028;
- m_uart_rx_available = false;
- memset(m_uart_rx_fifo, 0, ARRAY_LENGTH(m_uart_rx_fifo));
- m_uart_rx_fifo_start = 0;
- m_uart_rx_fifo_end = 0;
- m_uart_rx_fifo_count = 0;
+ memset(m_dma_regs, 0, 0x4 * sizeof(uint16_t));
m_video_regs[0x36] = 0xffff;
m_video_regs[0x37] = 0xffff;
m_video_regs[0x3c] = 0x0020;
+ m_video_regs[0x42] = 0x0001;
m_hide_page0 = false;
m_hide_page1 = false;
m_hide_sprites = false;
m_debug_sprites = false;
m_debug_blit = false;
+ m_debug_palette = false;
m_sprite_index_to_debug = 0;
+}
- m_debug_samples = false;
- m_debug_rates = false;
- m_audio_curr_beat_base_count = 0;
- m_audio_regs[AUDIO_CHANNEL_REPEAT] = 0x3f;
- m_audio_regs[AUDIO_CHANNEL_ENV_MODE] = 0x3f;
+WRITE_LINE_MEMBER(spg2xx_device::audioirq_w)
+{
+ m_cpu->set_state_unsynced(UNSP_IRQ4_LINE, state);
+}
- m_audio_beat->adjust(attotime::from_ticks(4, 281250), 0, attotime::from_ticks(4, 281250));
+WRITE_LINE_MEMBER(spg2xx_device::timerirq_w)
+{
+ m_cpu->set_state_unsynced(UNSP_IRQ2_LINE, state);
}
+WRITE_LINE_MEMBER(spg2xx_device::uartirq_w)
+{
+ m_cpu->set_state_unsynced(UNSP_IRQ3_LINE, state);
+}
-/*************************
-* Video Hardware *
-*************************/
+WRITE_LINE_MEMBER(spg2xx_device::extirq_w)
+{
+ m_cpu->set_state_unsynced(UNSP_IRQ5_LINE, state);
+}
-inline uint8_t spg2xx_device::expand_rgb5_to_rgb8(uint8_t val)
+WRITE_LINE_MEMBER(spg2xx_device::ffreq1_w)
{
- uint8_t temp = val & 0x1f;
- return (temp << 3) | (temp >> 2);
+ m_cpu->set_state_unsynced(UNSP_IRQ6_LINE, state);
}
-// Perform a lerp between a and b
-inline uint8_t spg2xx_device::mix_channel(uint8_t bottom, uint8_t top)
+WRITE_LINE_MEMBER(spg2xx_device::ffreq2_w)
{
- uint8_t alpha = (m_video_regs[0x2a] & 3) << 6;
- return ((256 - alpha) * bottom + alpha * top) >> 8;
+ m_cpu->set_state_unsynced(UNSP_IRQ7_LINE, state);
}
-void spg2xx_device::mix_pixel(uint32_t offset, uint16_t rgb)
+
+
+READ16_MEMBER(spg2xx_device::space_r)
{
- m_screenbuf[offset].r = mix_channel(m_screenbuf[offset].r, expand_rgb5_to_rgb8(rgb >> 10));
- m_screenbuf[offset].g = mix_channel(m_screenbuf[offset].g, expand_rgb5_to_rgb8(rgb >> 5));
- m_screenbuf[offset].b = mix_channel(m_screenbuf[offset].b, expand_rgb5_to_rgb8(rgb));
+ address_space &cpuspace = m_cpu->space(AS_PROGRAM);
+ return cpuspace.read_word(offset);
}
-void spg2xx_device::set_pixel(uint32_t offset, uint16_t rgb)
+/*************************
+* Video Hardware *
+*************************/
+
+// Perform a lerp between a and b
+inline uint8_t spg2xx_device::mix_channel(uint8_t bottom, uint8_t top)
{
- m_screenbuf[offset].r = expand_rgb5_to_rgb8(rgb >> 10);
- m_screenbuf[offset].g = expand_rgb5_to_rgb8(rgb >> 5);
- m_screenbuf[offset].b = expand_rgb5_to_rgb8(rgb);
+ uint8_t alpha = (m_video_regs[0x2a] & 3) << 6;
+ return ((256 - alpha) * bottom + alpha * top) >> 8;
}
-void spg2xx_device::blit(const rectangle &cliprect, uint32_t xoff, uint32_t yoff, uint32_t attr, uint32_t ctrl, uint32_t bitmap_addr, uint16_t tile)
+template<spg2xx_device::blend_enable_t Blend, spg2xx_device::rowscroll_enable_t RowScroll, spg2xx_device::flipx_t FlipX>
+void spg2xx_device::blit(const rectangle &cliprect, uint32_t line, uint32_t xoff, uint32_t yoff, uint32_t attr, uint32_t ctrl, uint32_t bitmap_addr, uint16_t tile)
{
address_space &space = m_cpu->space(AS_PROGRAM);
- uint32_t h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
- uint32_t w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
+ int32_t h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
+ int32_t w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
uint32_t yflipmask = attr & TILE_Y_FLIP ? h - 1 : 0;
- uint32_t xflipmask = attr & TILE_X_FLIP ? w - 1 : 0;
uint32_t nc = ((attr & 0x0003) + 1) << 1;
uint32_t palette_offset = (attr & 0x0f00) >> 4;
- if (m_debug_blit && SPG_DEBUG_VIDEO)
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
{
- printf("xy:%08x,%08x attr:%08x ctrl:%08x bitmap_addr:%08x tile:%04x\n", xoff, yoff, attr, ctrl, bitmap_addr, tile);
- printf("hw:%d,%d f:%d,%d fm:%d,%d ncols:%d pobs:%02x ", w, h, (attr & TILE_X_FLIP) ? 1 : 0, (attr & TILE_Y_FLIP) ? 1 : 0, xflipmask, yflipmask, nc, palette_offset);
+ printf("s:%d line:%d xy:%08x,%08x attr:%08x ctrl:%08x bitmap_addr:%08x tile:%04x\n", cliprect.min_x, line, xoff, yoff, attr, ctrl, bitmap_addr, tile);
+ printf("hw:%d,%d f:%d,%d yfm:%d ncols:%d pobs:%02x ", w, h, (attr & TILE_X_FLIP) ? 1 : 0, (attr & TILE_Y_FLIP) ? 1 : 0, yflipmask, nc, palette_offset);
}
palette_offset >>= nc;
palette_offset <<= nc;
- if (m_debug_blit && SPG_DEBUG_VIDEO)
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
{
printf("poas:%02x\n", palette_offset);
}
- uint32_t m = bitmap_addr + nc * w*h / 16 * tile;
+ uint32_t bits_per_row = nc * w / 16;
+ uint32_t words_per_tile = bits_per_row * h;
+ uint32_t m = bitmap_addr + words_per_tile * tile + bits_per_row * (line ^ yflipmask);
uint32_t bits = 0;
uint32_t nbits = 0;
+ uint32_t y = line;
- for (uint32_t y = 0; y < h; y++)
- {
- int yy = (yoff + (y ^ yflipmask)) & 0x1ff;
- if (yy >= 0x01c0)
- yy -= 0x0200;
+ int yy = (yoff + y) & 0x1ff;
+ if (yy >= 0x01c0)
+ yy -= 0x0200;
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("%3d:\n", yy);
+ if (yy > 240 || yy < 0)
+ return;
- for (uint32_t x = 0; x < w; x++)
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("%3d:\n", yy);
+
+ int y_index = yy * 320;
+
+ for (int32_t x = FlipX ? (w - 1) : 0; FlipX ? x >= 0 : x < w; FlipX ? x-- : x++)
+ {
+ int xx = xoff + x;
+
+ bits <<= nc;
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf(" %08x:%d ", bits, nbits);
+ if (nbits < nc)
{
- int xx = xoff + (x ^ xflipmask);
+ uint16_t b = space.read_word(m++ & 0x3fffff);
+ b = (b << 8) | (b >> 8);
+ bits |= b << (nc - nbits);
+ nbits += 16;
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("(%04x:%08x:%d) ", b, bits, nbits);
+ }
+ nbits -= nc;
- bits <<= nc;
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf(" %08x:%d ", bits, nbits);
- if (nbits < nc)
- {
- uint16_t b = space.read_word(m++ & 0x3fffff);
- b = (b << 8) | (b >> 8);
- bits |= b << (nc - nbits);
- nbits += 16;
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("(%04x:%08x:%d) ", b, bits, nbits);
- }
- nbits -= nc;
+ uint32_t pal = palette_offset + (bits >> 16);
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("%02x:%02x:%04x ", bits >> 16, pal, bits & 0xffff);
+ bits &= 0xffff;
+
+ if (RowScroll)
+ xx -= (int16_t)m_scrollram[(yy + m_rowscrolloffset) & 0x1ff];
- uint32_t pal = palette_offset + (bits >> 16);
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("%02x:%02x:%04x ", bits >> 16, pal, bits & 0xffff);
- bits &= 0xffff;
+ xx &= 0x01ff;
+ if (xx >= 0x01c0)
+ xx -= 0x0200;
- if ((ctrl & 0x0010) && yy < 240)
- xx -= (int16_t)m_scrollram[yy + 15];
+ if (xx >= 0 && xx < 320)
+ {
+ int pix_index = xx + y_index;
- xx &= 0x01ff;
- if (xx >= 0x01c0)
- xx -= 0x0200;
+ uint16_t rgb = m_paletteram[pal];
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("rgb:%04x ", rgb);
- if (xx >= 0 && xx < 320 && yy >= 0 && yy < 240)
+ if (!(rgb & 0x8000))
{
- uint16_t rgb = m_paletteram[pal];
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("rgb:%04x ", rgb);
- if (!(rgb & 0x8000))
+ if (Blend)
{
- if (attr & 0x4000 || ctrl & 0x0100)
- {
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("M\n");
- mix_pixel(xx + 320 * yy, rgb);
- }
- else
- {
- if (m_debug_blit && SPG_DEBUG_VIDEO)
- printf("S\n");
- set_pixel(xx + 320 * yy, rgb);
- }
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("M\n");
+ m_screenbuf[pix_index] = (mix_channel((uint8_t)(m_screenbuf[pix_index] >> 16), m_rgb5_to_rgb8[(rgb >> 10) & 0x1f]) << 16) |
+ (mix_channel((uint8_t)(m_screenbuf[pix_index] >> 8), m_rgb5_to_rgb8[(rgb >> 5) & 0x1f]) << 8) |
+ (mix_channel((uint8_t)(m_screenbuf[pix_index] >> 0), m_rgb5_to_rgb8[rgb & 0x1f]));
}
- else if (m_debug_blit && SPG_DEBUG_VIDEO)
+ else
{
- printf("X\n");
+ if (SPG_DEBUG_VIDEO && m_debug_blit)
+ printf("S\n");
+ m_screenbuf[pix_index] = m_rgb555_to_rgb888[rgb];
}
}
+ else if (SPG_DEBUG_VIDEO && m_debug_blit)
+ {
+ printf("X\n");
+ }
}
}
}
-void spg2xx_device::blit_page(const rectangle &cliprect, int depth, uint32_t bitmap_addr, uint16_t *regs)
+void spg2xx_device::blit_page(const rectangle &cliprect, uint32_t scanline, int depth, uint32_t bitmap_addr, uint16_t *regs)
{
uint32_t xscroll = regs[0];
uint32_t yscroll = regs[1];
@@ -322,62 +325,98 @@ void spg2xx_device::blit_page(const rectangle &cliprect, int depth, uint32_t bit
return;
}
- uint32_t h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
- uint32_t w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
+ uint32_t tile_h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
+ uint32_t tile_w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
+
+ uint32_t tile_count_x = 512 / tile_w;
- uint32_t hn = 256 / h;
- uint32_t wn = 512 / w;
+ uint32_t bitmap_y = (scanline + yscroll) & 0xff;
+ uint32_t y0 = bitmap_y / tile_h;
+ uint32_t tile_scanline = bitmap_y % tile_h;
+ uint32_t tile_address = tile_count_x * y0;
+ if (SPG_DEBUG_VIDEO && machine().input().code_pressed(KEYCODE_H))
+ printf("s:%3d | baddr:%08x | yscr:%3d | bity:%3d | y0:%2d | ts:%2d\n", scanline, bitmap_addr, yscroll, bitmap_y, y0, tile_scanline);
- for (uint32_t y0 = 0; y0 < hn; y0++)
+ if (SPG_DEBUG_VIDEO && machine().input().code_pressed(KEYCODE_EQUALS))
+ m_debug_blit = true;
+ for (uint32_t x0 = 0; x0 < tile_count_x; x0++, tile_address++)
{
- for (uint32_t x0 = 0; x0 < wn; x0++)
- {
- uint16_t tile = (ctrl & PAGE_WALLPAPER_MASK) ? space.read_word(tilemap) : space.read_word(tilemap + x0 + wn * y0);
- uint16_t palette = 0;
- uint32_t xx, yy;
+ uint32_t yy = ((tile_h * y0 - yscroll + 0x10) & 0xff) - 0x10;
+ uint32_t xx = (tile_w * x0 - xscroll) & 0x1ff;
+ uint16_t tile = (ctrl & PAGE_WALLPAPER_MASK) ? space.read_word(tilemap) : space.read_word(tilemap + tile_address);
+ uint16_t palette = 0;
- if (!tile)
- {
- continue;
- }
+ if (!tile)
+ continue;
- palette = space.read_word(palette_map + (x0 + wn * y0) / 2);
- if (x0 & 1)
- {
- palette >>= 8;
- }
+ palette = (ctrl & PAGE_WALLPAPER_MASK) ? space.read_word(palette_map) : space.read_word(palette_map + tile_address / 2);
+ if (x0 & 1)
+ palette >>= 8;
- uint32_t tileattr = attr;
- uint32_t tilectrl = ctrl;
- if ((ctrl & 2) == 0)
- { // -(1) bld(1) flip(2) pal(4)
- tileattr &= ~0x000c;
- tileattr |= (palette >> 2) & 0x000c; // flip
+ uint32_t tileattr = attr;
+ uint32_t tilectrl = ctrl;
+ if ((ctrl & 2) == 0)
+ { // -(1) bld(1) flip(2) pal(4)
+ tileattr &= ~0x000c;
+ tileattr |= (palette >> 2) & 0x000c; // flip
- tileattr &= ~0x0f00;
- tileattr |= (palette << 8) & 0x0f00; // palette
+ tileattr &= ~0x0f00;
+ tileattr |= (palette << 8) & 0x0f00; // palette
- tilectrl &= ~0x0100;
- tilectrl |= (palette << 2) & 0x0100; // blend
- }
+ tilectrl &= ~0x0100;
+ tilectrl |= (palette << 2) & 0x0100; // blend
+ }
- yy = ((h*y0 - yscroll + 0x10) & 0xff) - 0x10;
- xx = (w*x0 - xscroll) & 0x1ff;
+ bool blend = (tileattr & 0x4000 || tilectrl & 0x0100);
+ bool row_scroll = (tilectrl & 0x0010);
+ bool flip_x = (tileattr & TILE_X_FLIP);
- blit(cliprect, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ if (blend)
+ {
+ if (row_scroll)
+ {
+ if (flip_x)
+ blit<BlendOn, RowScrollOn, FlipXOn>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ else
+ blit<BlendOn, RowScrollOn, FlipXOff>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ }
+ else
+ {
+ if (flip_x)
+ blit<BlendOn, RowScrollOff, FlipXOn>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ else
+ blit<BlendOn, RowScrollOff, FlipXOff>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ }
+ }
+ else
+ {
+ if (row_scroll)
+ {
+ if (flip_x)
+ blit<BlendOff, RowScrollOn, FlipXOn>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ else
+ blit<BlendOff, RowScrollOn, FlipXOff>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ }
+ else
+ {
+ if (flip_x)
+ blit<BlendOff, RowScrollOff, FlipXOn>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ else
+ blit<BlendOff, RowScrollOff, FlipXOff>(cliprect, tile_scanline, xx, yy, tileattr, tilectrl, bitmap_addr, tile);
+ }
}
}
+ if (SPG_DEBUG_VIDEO && machine().input().code_pressed(KEYCODE_EQUALS))
+ m_debug_blit = false;
}
-void spg2xx_device::blit_sprite(const rectangle &cliprect, int depth, uint32_t base_addr)
+void spg2xx_device::blit_sprite(const rectangle &cliprect, uint32_t scanline, int depth, uint32_t base_addr)
{
- address_space &space = m_cpu->space(AS_PROGRAM);
uint32_t bitmap_addr = 0x40 * m_video_regs[0x22];
-
- uint16_t tile = space.read_word(base_addr + 0);
- int16_t x = space.read_word(base_addr + 1);
- int16_t y = space.read_word(base_addr + 2);
- uint16_t attr = space.read_word(base_addr + 3);
+ uint16_t tile = m_spriteram[base_addr + 0];
+ int16_t x = m_spriteram[base_addr + 1];
+ int16_t y = m_spriteram[base_addr + 2];
+ uint16_t attr = m_spriteram[base_addr + 3];
if (!tile)
{
@@ -389,32 +428,68 @@ void spg2xx_device::blit_sprite(const rectangle &cliprect, int depth, uint32_t b
return;
}
+ const uint32_t h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
+ const uint32_t w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
+
if (!(m_video_regs[0x42] & SPRITE_COORD_TL_MASK))
{
- x = 160 + x;
- y = 120 - y;
-
- uint32_t h = 8 << ((attr & PAGE_TILE_HEIGHT_MASK) >> PAGE_TILE_HEIGHT_SHIFT);
- uint32_t w = 8 << ((attr & PAGE_TILE_WIDTH_MASK) >> PAGE_TILE_WIDTH_SHIFT);
-
- x -= (w / 2);
- y -= (h / 2) - 8;
+ x = (160 + x) - w / 2;
+ y = (120 - y) - (h / 2) + 8;
}
x &= 0x01ff;
y &= 0x01ff;
+ uint32_t tile_line = ((scanline - y) + 0x200) % h;
+ int16_t test_y = (y + tile_line) & 0x1ff;
+ if (test_y >= 0x01c0)
+ test_y -= 0x0200;
+
+ if (test_y != scanline)
+ {
+ return;
+ }
+
+ bool blend = (attr & 0x4000);
+ bool flip_x = (attr & TILE_X_FLIP);
+
#if SPG_DEBUG_VIDEO
if (m_debug_sprites && machine().input().code_pressed(KEYCODE_MINUS))
m_debug_blit = true;
- blit(cliprect, x, y, attr, 0, bitmap_addr, tile);
+ if (blend)
+ {
+ if (flip_x)
+ blit<BlendOn, RowScrollOff, FlipXOn>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ else
+ blit<BlendOn, RowScrollOff, FlipXOff>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ }
+ else
+ {
+ if (flip_x)
+ blit<BlendOff, RowScrollOff, FlipXOn>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ else
+ blit<BlendOff, RowScrollOff, FlipXOff>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ }
m_debug_blit = false;
#else
- blit(cliprect, x, y, attr, 0, bitmap_addr, tile);
+ if (blend)
+ {
+ if (flip_x)
+ blit<BlendOn, RowScrollOff, FlipXOn>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ else
+ blit<BlendOn, RowScrollOff, FlipXOff>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ }
+ else
+ {
+ if (flip_x)
+ blit<BlendOff, RowScrollOff, FlipXOn>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ else
+ blit<BlendOff, RowScrollOff, FlipXOff>(cliprect, tile_line, x, y, attr, 0, bitmap_addr, tile);
+ }
#endif
}
-void spg2xx_device::blit_sprites(const rectangle &cliprect, int depth)
+void spg2xx_device::blit_sprites(const rectangle &cliprect, uint32_t scanline, int depth)
{
if (!(m_video_regs[0x42] & SPRITE_ENABLE_MASK))
{
@@ -427,13 +502,13 @@ void spg2xx_device::blit_sprites(const rectangle &cliprect, int depth)
#endif
for (uint32_t n = 0; n < m_sprite_limit; n++)
{
- blit_sprite(cliprect, depth, 0x2c00 + 4 * n);
+ blit_sprite(cliprect, scanline, depth, 4 * n);
}
#if SPG_DEBUG_VIDEO
}
else
{
- blit_sprite(cliprect, depth, 0x2c00 + 4 * m_sprite_index_to_debug);
+ blit_sprite(cliprect, scanline, depth, 4 * m_sprite_index_to_debug);
}
#endif
}
@@ -447,12 +522,13 @@ void spg2xx_device::apply_saturation(const rectangle &cliprect)
const float sat_adjust = (0xff - (m_video_regs[0x3c] & 0x00ff)) / (float)(0xff - 0x20);
for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
- rgbtriad_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
+ uint32_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
{
- const float src_r = src->r * s_u8_to_float;
- const float src_g = src->g * s_u8_to_float;
- const float src_b = src->b * s_u8_to_float;
+ const uint32_t src_rgb = *src;
+ const float src_r = (uint8_t)(src_rgb >> 16) * s_u8_to_float;
+ const float src_g = (uint8_t)(src_rgb >> 8) * s_u8_to_float;
+ const float src_b = (uint8_t)(src_rgb >> 0) * s_u8_to_float;
const float luma = src_r * s_gray_r + src_g * s_gray_g + src_b * s_gray_b;
const float adjusted_r = luma + (src_r - luma) * sat_adjust;
const float adjusted_g = luma + (src_g - luma) * sat_adjust;
@@ -460,50 +536,55 @@ void spg2xx_device::apply_saturation(const rectangle &cliprect)
const int integer_r = (int)floor(adjusted_r * 255.0f);
const int integer_g = (int)floor(adjusted_g * 255.0f);
const int integer_b = (int)floor(adjusted_b * 255.0f);
- src->r = integer_r > 255 ? 255 : (integer_r < 0 ? 0 : (uint8_t)integer_r);
- src->g = integer_g > 255 ? 255 : (integer_g < 0 ? 0 : (uint8_t)integer_g);
- src->b = integer_b > 255 ? 255 : (integer_b < 0 ? 0 : (uint8_t)integer_b);
- src++;
+ *src++ = (integer_r > 255 ? 0xff0000 : (integer_r < 0 ? 0 : ((uint8_t)integer_r << 16))) |
+ (integer_g > 255 ? 0x00ff00 : (integer_g < 0 ? 0 : ((uint8_t)integer_g << 8))) |
+ (integer_b > 255 ? 0x0000ff : (integer_b < 0 ? 0 : (uint8_t)integer_b));
}
}
}
void spg2xx_device::apply_fade(const rectangle &cliprect)
{
- const uint16_t fade_offset = m_video_regs[0x30] << 1;
+ const uint16_t fade_offset = m_video_regs[0x30];
for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
- rgbtriad_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
+ uint32_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
{
- const uint16_t r = (uint16_t)src->r - fade_offset;
- const uint16_t g = (uint16_t)src->g - fade_offset;
- const uint16_t b = (uint16_t)src->b - fade_offset;
- src->r = (r > src->r ? 0 : r);
- src->g = (g > src->g ? 0 : g);
- src->b = (b > src->b ? 0 : b);
- src++;
+ const uint32_t src_rgb = *src;
+ const uint8_t src_r = (src_rgb >> 16) & 0xff;
+ const uint8_t src_g = (src_rgb >> 8) & 0xff;
+ const uint8_t src_b = (src_rgb >> 0) & 0xff;
+ const uint8_t r = src_r - fade_offset;
+ const uint8_t g = src_g - fade_offset;
+ const uint8_t b = src_b - fade_offset;
+ *src++ = (r > src_r ? 0 : (r << 16)) |
+ (g > src_g ? 0 : (g << 8)) |
+ (b > src_b ? 0 : (b << 0));
}
}
}
uint32_t spg2xx_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
- memset(&m_screenbuf[320 * cliprect.min_y], 0, 3 * 320 * ((cliprect.max_y - cliprect.min_y) + 1));
+ memset(&m_screenbuf[320 * cliprect.min_y], 0, 4 * 320 * ((cliprect.max_y - cliprect.min_y) + 1));
const uint32_t page1_addr = 0x40 * m_video_regs[0x20];
const uint32_t page2_addr = 0x40 * m_video_regs[0x21];
uint16_t *page1_regs = m_video_regs + 0x10;
uint16_t *page2_regs = m_video_regs + 0x16;
- for (int i = 0; i < 4; i++)
+ for (uint32_t scanline = (uint32_t)cliprect.min_y; scanline <= (uint32_t)cliprect.max_y; scanline++)
{
- if (!m_hide_page0)
- blit_page(cliprect, i, page1_addr, page1_regs);
- if (!m_hide_page1)
- blit_page(cliprect, i, page2_addr, page2_regs);
- if (!m_hide_sprites)
- blit_sprites(cliprect, i);
+ for (int i = 0; i < 4; i++)
+ {
+ if (!SPG_DEBUG_VIDEO || !m_hide_page0)
+ blit_page(cliprect, scanline, i, page1_addr, page1_regs);
+ if (!SPG_DEBUG_VIDEO || !m_hide_page1)
+ blit_page(cliprect, scanline, i, page2_addr, page2_regs);
+ if (!SPG_DEBUG_VIDEO || !m_hide_sprites)
+ blit_sprites(cliprect, scanline, i);
+ }
}
if ((m_video_regs[0x3c] & 0x00ff) != 0x0020)
@@ -516,15 +597,30 @@ uint32_t spg2xx_device::screen_update(screen_device &screen, bitmap_rgb32 &bitma
apply_fade(cliprect);
}
- bitmap.fill(0, cliprect);
for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
uint32_t *dest = &bitmap.pix32(y, cliprect.min_x);
- rgbtriad_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
- for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
+ uint32_t *src = &m_screenbuf[cliprect.min_x + 320 * y];
+ memcpy(dest, src, sizeof(uint32_t) * ((cliprect.max_x - cliprect.min_x) + 1));
+ }
+
+ if (SPG_DEBUG_VIDEO && m_debug_palette)
+ {
+ for (int y = cliprect.min_y; y <= cliprect.max_y && y < 128; y++)
{
- *dest++ = (src->r << 16) | (src->g << 8) | src->b;
- src++;
+ const uint16_t high_nybble = (y / 8) << 4;
+ uint32_t *dest = &bitmap.pix32(y, cliprect.min_x);
+ for (int x = cliprect.min_x; x <= cliprect.max_x && x < 256; x++)
+ {
+ const uint16_t low_nybble = x / 16;
+ const uint16_t palette_entry = high_nybble | low_nybble;
+ const uint16_t color = m_paletteram[palette_entry];
+ if (!(color & 0x8000))
+ {
+ *dest = m_rgb555_to_rgb888[color & 0x7fff];
+ }
+ dest++;
+ }
}
}
@@ -536,15 +632,22 @@ void spg2xx_device::do_sprite_dma(uint32_t len)
address_space &mem = m_cpu->space(AS_PROGRAM);
uint32_t src = m_video_regs[0x70] & 0x3fff;
- uint32_t dst = (m_video_regs[0x71] & 0x3ff) + 0x2c00;
+ uint32_t dst = m_video_regs[0x71];
for (uint32_t j = 0; j < len; j++)
{
- mem.write_word(dst + j, mem.read_word(src + j));
+ m_spriteram[(dst + j) & 0x3ff] = mem.read_word(src + j);
}
m_video_regs[0x72] = 0;
- VIDEO_IRQ_STATUS |= 4;
+ if (VIDEO_IRQ_ENABLE & 4)
+ {
+ const uint16_t old = VIDEO_IRQ_STATUS;
+ VIDEO_IRQ_STATUS |= 4;
+ const uint16_t changed = old ^ (VIDEO_IRQ_ENABLE & VIDEO_IRQ_STATUS);
+ if (changed)
+ check_video_irq();
+ }
}
READ16_MEMBER(spg2xx_device::video_r)
@@ -738,9 +841,12 @@ WRITE16_MEMBER(spg2xx_device::video_w)
break;
case 0x72: // Sprite DMA Length
+ {
LOGMASKED(LOG_DMA, "video_w: Sprite DMA Length = %04x\n", data & 0x03ff);
- do_sprite_dma(data & 0x3ff);
+ uint16_t length = data & 0x3ff;
+ do_sprite_dma(length ? length : 0x400);
break;
+ }
default:
LOGMASKED(LOG_UNKNOWN_PPU, "video_w: Unknown register %04x = %04x\n", 0x2800 + offset, data);
@@ -752,7 +858,12 @@ WRITE16_MEMBER(spg2xx_device::video_w)
WRITE_LINE_MEMBER(spg2xx_device::vblank)
{
if (!state)
+ {
+ VIDEO_IRQ_STATUS &= ~1;
+ LOGMASKED(LOG_IRQS, "Setting video IRQ status to %04x\n", VIDEO_IRQ_STATUS);
+ check_video_irq();
return;
+ }
#if SPG_DEBUG_VIDEO
if (machine().input().code_pressed_once(KEYCODE_5))
@@ -767,38 +878,22 @@ WRITE_LINE_MEMBER(spg2xx_device::vblank)
m_sprite_index_to_debug--;
if (machine().input().code_pressed_once(KEYCODE_0))
m_sprite_index_to_debug++;
+ if (machine().input().code_pressed_once(KEYCODE_L))
+ m_debug_palette = !m_debug_palette;
#endif
-#if SPG_DEBUG_AUDIO
- if (machine().input().code_pressed_once(KEYCODE_3))
- m_debug_samples = !m_debug_samples;
- if (machine().input().code_pressed_once(KEYCODE_4))
- m_debug_rates = !m_debug_rates;
- if (machine().input().code_pressed_once(KEYCODE_1))
+ if (VIDEO_IRQ_ENABLE & 1)
{
- m_channel_debug--;
- if (m_channel_debug < -1)
- m_channel_debug = 15;
- }
- if (machine().input().code_pressed_once(KEYCODE_2))
- {
- m_channel_debug++;
- if (m_channel_debug == 16)
- m_channel_debug = -1;
- }
-#endif
-
- const uint16_t old = VIDEO_IRQ_ENABLE & VIDEO_IRQ_STATUS;
- VIDEO_IRQ_STATUS |= 1;
- LOGMASKED(LOG_IRQS, "Setting video IRQ status to %04x\n", VIDEO_IRQ_STATUS);
- const uint16_t changed = old ^ (VIDEO_IRQ_ENABLE & VIDEO_IRQ_STATUS);
- if (changed)
+ VIDEO_IRQ_STATUS |= 1;
+ LOGMASKED(LOG_IRQS, "Setting video IRQ status to %04x\n", VIDEO_IRQ_STATUS);
check_video_irq();
+ }
}
void spg2xx_device::check_video_irq()
{
- m_cpu->set_input_line(UNSP_IRQ0_LINE, (VIDEO_IRQ_STATUS & VIDEO_IRQ_ENABLE) ? ASSERT_LINE : CLEAR_LINE);
+ LOGMASKED(LOG_IRQS, "%ssserting IRQ0 (%04x, %04x)\n", (VIDEO_IRQ_STATUS & VIDEO_IRQ_ENABLE) ? "A" : "Dea", VIDEO_IRQ_STATUS, VIDEO_IRQ_ENABLE);
+ m_cpu->set_state_unsynced(UNSP_IRQ0_LINE, (VIDEO_IRQ_STATUS & VIDEO_IRQ_ENABLE) ? ASSERT_LINE : CLEAR_LINE);
}
@@ -806,588 +901,66 @@ void spg2xx_device::check_video_irq()
* Machine Hardware *
*************************/
-void spg2xx_device::uart_rx(uint8_t data)
+READ16_MEMBER(spg2xx_device::dma_r)
{
- if (!m_uart_rx_available)
- {
- if (BIT(m_io_regs[0x30], 6))
- {
- m_io_regs[0x36] = data;
- if (BIT(m_io_regs[0x30], 0))
- {
- IO_IRQ_STATUS |= 0x0100;
- check_irqs(0x0100);
- }
- m_uart_rx_available = true;
- }
- }
- else if (m_uart_rx_fifo_count == ARRAY_LENGTH(m_uart_rx_fifo))
- {
- m_io_regs[0x37] |= 0x4000;
- }
- else
- {
- m_uart_rx_fifo[m_uart_rx_fifo_end] = data;
- m_uart_rx_fifo_end = (m_uart_rx_fifo_end + 1) % ARRAY_LENGTH(m_uart_rx_fifo);
- m_uart_rx_fifo_count++;
- }
-}
-
-READ16_MEMBER(spg2xx_device::io_r)
-{
- static const char *const gpioregs[] = { "GPIO Data Port", "GPIO Buffer Port", "GPIO Direction Port", "GPIO Attribute Port", "GPIO IRQ/Latch Port" };
- static const char gpioports[] = { 'A', 'B', 'C' };
-
- uint16_t val = m_io_regs[offset];
-
+ uint16_t val = m_dma_regs[offset];
switch (offset)
{
- case 0x01: case 0x06: case 0x0b: // GPIO Data Port A/B/C
- do_gpio(offset);
- LOGMASKED(LOG_GPIO, "io_r: %s %c = %04x\n", gpioregs[(offset - 1) % 5], gpioports[(offset - 1) / 5], m_io_regs[offset]);
- val = m_io_regs[offset];
- break;
-
- case 0x02: case 0x03: case 0x04: case 0x05:
- case 0x07: case 0x08: case 0x09: case 0x0a:
- case 0x0c: case 0x0d: case 0x0e: case 0x0f: // Other GPIO regs
- LOGMASKED(LOG_GPIO, "io_r: %s %c = %04x\n", gpioregs[(offset - 1) % 5], gpioports[(offset - 1) / 5], m_io_regs[offset]);
- break;
-
- case 0x10: // Timebase Control
- LOGMASKED(LOG_IO_READS, "io_r: Timebase Control = %04x\n", val);
- break;
- case 0x1c: // Video line counter
- val = m_screen->vpos();
- LOGMASKED(LOG_VLINES, "io_r: Video Line = %04x\n", val);
+ case 0x000: // DMA Source (L)
+ LOGMASKED(LOG_DMA, "dma_r: DMA Source (lo) = %04x\n", val);
break;
- case 0x20: // System Control
- LOGMASKED(LOG_IO_READS, "io_r: System Control = %04x\n", val);
+ case 0x001: // DMA Source (H)
+ LOGMASKED(LOG_DMA, "dma_r: DMA Source (hi) = %04x\n", val);
break;
- case 0x21: // IRQ Control
- LOGMASKED(LOG_IRQS, "io_r: I/O IRQ Control = %04x\n", val);
- break;
-
- case 0x22: // IRQ Status
- LOGMASKED(LOG_IRQS, "io_r: I/O IRQ Status = %04x\n", val);
- break;
-
- case 0x23: // External Memory Control
- LOGMASKED(LOG_IO_READS, "io_r: Ext. Memory Control = %04x\n", val);
- break;
-
- case 0x25: // ADC Control
- LOGMASKED(LOG_IO_READS, "io_r: ADC Control = %04x\n", val);
- break;
-
- case 0x27: // ADC Data
- m_io_regs[0x27] = 0;
- LOGMASKED(LOG_IO_READS, "io_r: ADC Data = %04x\n", val);
- break;
-
- case 0x29: // Wakeup Source
- LOGMASKED(LOG_IO_READS, "io_r: Wakeup Source = %04x\n", val);
- break;
-
- case 0x2b:
- LOGMASKED(LOG_IO_READS, "io_r: NTSC/PAL = %04x\n", m_pal_flag);
- return m_pal_flag;
-
- case 0x2c: case 0x2d: // PRNG 0/1
- val = machine().rand() & 0x0000ffff;
- LOGMASKED(LOG_IO_READS, "io_r: PRNG %d = %04x\n", offset - 0x2c, val);
- break;
-
- case 0x2e: // FIQ Source Select
- LOGMASKED(LOG_IRQS, "io_r: FIQ Source Select = %04x\n", val);
- break;
-
- case 0x2f: // Data Segment
- val = m_cpu->state_int(UNSP_SR) >> 10;
- LOGMASKED(LOG_SEGMENT, "io_r: Data Segment = %04x\n", val);
- break;
-
- case 0x31: // UART Status
- val |= (m_uart_rx_available ? 0x81 : 0);
- LOGMASKED(LOG_UART, "io_r: UART Status = %04x\n", val);
- break;
-
- case 0x36: // UART RX Data
- if (m_uart_rx_available)
- {
- if (m_uart_rx_fifo_count)
- {
- m_io_regs[0x36] = m_uart_rx_fifo[m_uart_rx_fifo_start];
- m_uart_rx_fifo_start = (m_uart_rx_fifo_start + 1) % ARRAY_LENGTH(m_uart_rx_fifo);
- m_uart_rx_fifo_count--;
- }
- else
- {
- m_uart_rx_available = false;
- }
- }
- else
- {
- m_io_regs[0x37] |= 0x2000;
- }
- LOGMASKED(LOG_UART, "%s: io_r: UART Rx Data = %04x\n", machine().describe_context(), val);
- break;
-
- case 0x37: // UART Rx FIFO Control
- val &= ~0x0070;
- val |= (m_uart_rx_available ? 7 : 0) << 4;
- LOGMASKED(LOG_UART, "io_r: UART Rx FIFO Control = %04x\n", val);
- break;
-
- case 0x59: // I2C Status
- LOGMASKED(LOG_I2C, "io_r: I2C Status = %04x\n", val);
- break;
-
- case 0x5e: // I2C Data In
- LOGMASKED(LOG_I2C, "io_r: I2C Data In = %04x\n", val);
- break;
-
- case 0x100: // DMA Source (L)
- LOGMASKED(LOG_DMA, "io_r: DMA Source (lo) = %04x\n", val);
- break;
-
- case 0x101: // DMA Source (H)
- LOGMASKED(LOG_DMA, "io_r: DMA Source (hi) = %04x\n", val);
- break;
-
- case 0x102: // DMA Length
- LOGMASKED(LOG_DMA, "io_r: DMA Length = %04x\n", 0);
+ case 0x002: // DMA Length
+ LOGMASKED(LOG_DMA, "dma_r: DMA Length = %04x\n", 0);
val = 0;
break;
- case 0x103: // DMA Destination
- LOGMASKED(LOG_DMA, "io_r: DMA Dest = %04x\n", val);
+ case 0x003: // DMA Destination
+ LOGMASKED(LOG_DMA, "dma_r: DMA Dest = %04x\n", val);
break;
default:
- LOGMASKED(LOG_UNKNOWN_IO, "io_r: Unknown register %04x\n", 0x3d00 + offset);
+ LOGMASKED(LOG_UNKNOWN_IO, "dma_r: Unknown register %04x\n", 0x3d00 + offset);
break;
}
return val;
}
-void spg2xx_device::update_porta_special_modes()
-{
- static const char* const s_pa_special[4][16] =
- {
- // Input, Special 0
- // Input, Special 1
- // Output, Special 0
- // Output, Special 1
-
- { "LP", "ExtClk2", "ExtClk1", "-", "SDA", "SlvRDY", "-", "-", "SPICLK", "-", "RxD", "SPISSB", "-", "-", "-", "-" },
- { "-", "-", "-", "SCK", "-", "SWS", "-", "-", "-", "-", "-", "-", "IRQ2B", "-", "-", "IRQ1B" },
- { "-", "-", "-", "SCK", "SDA", "SWS", "-", "-", "SPICLK", "TxD", "-", "SPISSB", "TAPWM", "TM1", "TBPWM", "TM2" },
- { "CSB3", "CSB2", "CSB1", "SCK", "SDA", "VSYNC", "HSYNC", "SYSCLK3", "SPICLK", "TxD", "SWS", "SPISSB", "-", "VSYNC", "HSYNC", "CSYNC" },
- };
- for (int bit = 15; bit >= 0; bit--)
- {
- if (!BIT(m_io_regs[0x05], bit))
- continue;
- uint8_t type = (BIT(m_io_regs[0x03], bit) << 1) | BIT(m_io_regs[0x00], 0);
- LOGMASKED(LOG_GPIO, " Bit %2d: %s\n", bit, s_pa_special[type][bit]);
- }
-}
-
-void spg2xx_device::update_portb_special_modes()
-{
- static const char* const s_pb_special[4][8] =
- {
- // Input, Special 0
- // Input, Special 1
- // Output, Special 0
- // Output, Special 1
-
- { "-", "-", "-", "-", "-", "-", "SDA", "SlvRDY" },
- { "-", "-", "-", "-", "-", "-", "SDA", "SlvRDY" },
- { "VSYNC", "HSYNC", "CSYNC", "-", "-", "SCK", "SDA", "SWS" },
- { "CSB3", "CSB2", "CSB1", "TBPWM", "TM2", "-", "-", "SYSCLK2" },
- };
- for (int bit = 7; bit >= 0; bit--)
- {
- if (!BIT(m_io_regs[0x0a], bit))
- continue;
- uint8_t type = (BIT(m_io_regs[0x08], bit) << 1) | BIT(m_io_regs[0x00], 1);
- LOGMASKED(LOG_GPIO, " Bit %2d: %s\n", bit, s_pb_special[type][bit]);
- }
-}
-WRITE16_MEMBER(spg2xx_device::io_w)
+WRITE16_MEMBER(spg2xx_device::dma_w)
{
- static const char *const gpioregs[] = { "GPIO Data Port", "GPIO Buffer Port", "GPIO Direction Port", "GPIO Attribute Port", "GPIO IRQ/Latch Port" };
- static const char gpioports[3] = { 'A', 'B', 'C' };
-
switch (offset)
{
- case 0x00: // GPIO special function select
- {
- LOGMASKED(LOG_GPIO, "io_w: GPIO Configuration = %04x (IOBWake:%d, IOAWake:%d, IOBSpecSel:%d, IOASpecSel:%d)\n", data
- , BIT(data, 4), BIT(data, 3), BIT(data, 1), BIT(data, 0));
- const uint16_t old = m_io_regs[offset];
- m_io_regs[offset] = data;
- const uint16_t changed = old ^ data;
- if (BIT(changed, 0))
- update_porta_special_modes();
- if (BIT(changed, 1))
- update_portb_special_modes();
+ case 0x000: // DMA Source (lo)
+ LOGMASKED(LOG_DMA, "dma_w: DMA Source (lo) = %04x\n", data);
+ m_dma_regs[offset] = data;
break;
- }
- case 0x01: case 0x06: case 0x0b: // GPIO data, port A/B/C
- offset++;
- // Intentional fallthrough - we redirect data register writes to the buffer register.
-
- case 0x02: case 0x04: // Port A
- case 0x07: case 0x09: // Port B
- case 0x0c: case 0x0d: case 0x0e: case 0x0f: // Port C
- LOGMASKED(LOG_GPIO, "io_w: %s %c = %04x\n", gpioregs[(offset - 1) % 5], gpioports[(offset - 1) / 5], data);
- m_io_regs[offset] = data;
- do_gpio(offset);
- break;
-
- case 0x03: // Port A Direction
- LOGMASKED(LOG_GPIO, "io_w: GPIO Direction Port A = %04x\n", data);
- m_io_regs[offset] = data;
- update_porta_special_modes();
- do_gpio(offset);
+ case 0x001: // DMA Source (hi)
+ LOGMASKED(LOG_DMA, "dma_w: DMA Source (hi) = %04x\n", data);
+ m_dma_regs[offset] = data;
break;
- case 0x08: // Port B Direction
- LOGMASKED(LOG_GPIO, "io_w: GPIO Direction Port B = %04x\n", data);
- m_io_regs[offset] = data;
- update_portb_special_modes();
- do_gpio(offset);
+ case 0x002: // DMA Length
+ LOGMASKED(LOG_DMA, "dma_w: DMA Length = %04x\n", data);
+ if (!(data & 0xc000)) // jak_dora writes 0xffff here which ends up trashing registers etc. why? such writes can't be valid
+ do_cpu_dma(data);
break;
- case 0x05: // Port A Special
- LOGMASKED(LOG_GPIO, "io_w: Port A Special Function Select: %04x\n", data);
- m_io_regs[offset] = data;
- update_porta_special_modes();
- break;
-
- case 0x0a: // Port B Special
- LOGMASKED(LOG_GPIO, "io_w: Port B Special Function Select: %04x\n", data);
- m_io_regs[offset] = data;
- update_portb_special_modes();
- break;
-
- case 0x10: // Timebase Control
- {
- static const char* const s_tmb1_sel[2][4] =
- {
- { "8Hz", "16Hz", "32Hz", "64Hz" },
- { "12kHz", "24kHz", "40kHz", "40kHz" }
- };
- static const char* const s_tmb2_sel[2][4] =
- {
- { "128Hz", "256Hz", "512Hz", "1024Hz" },
- { "105kHz", "210kHz", "420kHz", "840kHz" }
- };
- static const uint32_t s_tmb1_freq[2][4] =
- {
- { 8, 16, 32, 64 },
- { 12000, 24000, 40000, 40000 }
- };
- static const uint32_t s_tmb2_freq[2][4] =
- {
- { 128, 256, 512, 1024 },
- { 105000, 210000, 420000, 840000 }
- };
- LOGMASKED(LOG_IO_WRITES, "io_w: Timebase Control = %04x (Source:%s, TMB2:%s, TMB1:%s)\n", data,
- BIT(data, 4) ? "27MHz" : "32768Hz", s_tmb2_sel[BIT(data, 4)][(data >> 2) & 3], s_tmb1_sel[BIT(data, 4)][data & 3]);
- const uint16_t old = m_io_regs[offset];
- m_io_regs[offset] = data;
- const uint16_t changed = old ^ m_io_regs[offset];
- if (changed & 0x001f)
- {
- const uint8_t hifreq = BIT(data, 4);
- if (changed & 0x0013)
- {
- const uint32_t freq = s_tmb1_freq[hifreq][data & 3];
- m_tmb1->adjust(attotime::from_hz(freq), 0, attotime::from_hz(freq));
- }
- if (changed & 0x001c)
- {
- const uint32_t freq = s_tmb2_freq[hifreq][(data >> 2) & 3];
- m_tmb2->adjust(attotime::from_hz(freq), 0, attotime::from_hz(freq));
- }
- }
- break;
- }
-
- case 0x11: // Timebase Clear
- LOGMASKED(LOG_IO_WRITES, "io_w: Timebase Clear = %04x\n", data);
- break;
-
- case 0x20: // System Control
- {
- static const char* const s_sysclk[4] = { "13.5MHz", "27MHz", "27MHz NoICE", "54MHz" };
- static const char* const s_lvd_voltage[4] = { "2.7V", "2.9V", "3.1V", "3.3V" };
- static const char* const s_weak_strong[2] = { "Weak", "Strong" };
- LOGMASKED(LOG_IO_WRITES, "io_w: System Control = %04x (Watchdog:%d, Sleep:%d, SysClk:%s, SysClkInv:%d, LVROutEn:%d, LVREn:%d\n"
- , data, BIT(data, 15), BIT(data, 14), s_sysclk[(data >> 12) & 3], BIT(data, 11), BIT(data, 9), BIT(data, 8));
- LOGMASKED(LOG_IO_WRITES, " LVDEn:%d, LVDVoltSel:%s, 32kHzDisable:%d, StrWkMode:%s, VDACDisable:%d, ADACDisable:%d, ADACOutDisable:%d)\n"
- , BIT(data, 7), s_lvd_voltage[(data >> 5) & 3], BIT(data, 4), s_weak_strong[BIT(data, 3)], BIT(data, 2), BIT(data, 1), BIT(data, 0));
- m_io_regs[offset] = data;
- break;
- }
-
- case 0x21: // IRQ Enable
- {
- LOGMASKED(LOG_IRQS, "io_w: IRQ Enable = %04x\n", data);
- const uint16_t old = IO_IRQ_ENABLE & IO_IRQ_STATUS;
- m_io_regs[offset] = data;
- const uint16_t changed = old ^ (IO_IRQ_ENABLE & IO_IRQ_STATUS);
- if (changed)
- check_irqs(changed);
- break;
- }
-
- case 0x22: // IRQ Acknowledge
- {
- LOGMASKED(LOG_IRQS, "io_w: IRQ Acknowledge = %04x\n", data);
- const uint16_t old = IO_IRQ_STATUS;
- IO_IRQ_STATUS &= ~data;
- const uint16_t changed = old ^ (IO_IRQ_ENABLE & IO_IRQ_STATUS);
- if (changed)
- check_irqs(changed);
- break;
- }
-
- case 0x23: // External Memory Control
- {
- static const char* const s_bus_arb[8] =
- {
- "Forbidden", "Forbidden", "Forbidden", "Forbidden", "Forbidden", "1:SPU/2:PPU/3:CPU", "Forbidden", "1:PPU/2:SPU/3:CPU"
- };
- static const char* const s_addr_decode[4] =
- {
- "ROMCSB: 4000-3fffff, CSB1: ---, CSB2: ---, CSB3: ---",
- "ROMCSB: 4000-1fffff, CSB1: 200000-3fffff, CSB2: ---, CSB3: ---",
- "ROMCSB: 4000-0fffff, CSB1: 100000-1fffff, CSB2: 200000-2fffff, CSB3: 300000-3fffff",
- "ROMCSB: 4000-0fffff, CSB1: 100000-1fffff, CSB2: 200000-2fffff, CSB3: 300000-3fffff"
- };
- static const char* const s_ram_decode[16] =
- {
- "None", "None", "None", "None", "None", "None", "None", "None",
- "4KW, 3ff000-3fffff\n",
- "8KW, 3fe000-3fffff\n",
- "16KW, 3fc000-3fffff\n",
- "32KW, 3f8000-3fffff\n",
- "64KW, 3f0000-3fffff\n",
- "128KW, 3e0000-3fffff\n",
- "256KW, 3c0000-3fffff\n",
- "512KW, 380000-3fffff\n"
- };
- LOGMASKED(LOG_IO_WRITES, "io_w: Ext. Memory Control (not yet implemented) = %04x:\n", data);
- LOGMASKED(LOG_IO_WRITES, " WaitStates:%d, BusArbPrio:%s\n", (data >> 1) & 3, s_bus_arb[(data >> 3) & 7]);
- LOGMASKED(LOG_IO_WRITES, " ROMAddrDecode:%s\n", s_addr_decode[(data >> 6) & 3]);
- LOGMASKED(LOG_IO_WRITES, " RAMAddrDecode:%s\n", s_ram_decode[(data >> 8) & 15]);
- m_chip_sel((data >> 6) & 3);
- m_io_regs[offset] = data;
- break;
- }
-
- case 0x24: // Watchdog
- LOGMASKED(LOG_WATCHDOG, "io_w: Watchdog Pet = %04x\n", data);
- break;
-
- case 0x25: // ADC Control
- {
- LOGMASKED(LOG_IO_WRITES, "io_w: ADC Control = %04x\n", data);
- //const uint16_t changed = m_io_regs[offset] ^ data;
- m_io_regs[offset] = data;
- //if (BIT(changed, 12) && BIT(data, 12) && !BIT(m_io_regs[offset], 1))
- {
- //m_io_regs[0x27] = 0x80ff;
- //const uint16_t old = IO_IRQ_STATUS;
- //IO_IRQ_STATUS |= 0x2000;
- //const uint16_t changed = IO_IRQ_STATUS ^ old;
- //if (changed)
- //check_irqs(changed);
- }
- break;
- }
-
- case 0x28: // Sleep Mode
- LOGMASKED(LOG_IO_WRITES, "io_w: Sleep Mode (%s enter value) = %04x\n", data == 0xaa55 ? "valid" : "invalid", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x29: // Wakeup Source
- {
- m_io_regs[offset] = data;
- static const char* const s_sources[8] =
- {
- "TMB1", "TMB2", "2Hz", "4Hz", "1024Hz", "2048Hz", "4096Hz", "Key"
- };
-
- LOGMASKED(LOG_IO_WRITES, "io_w: Wakeup Source = %04x:\n", data);
- bool comma = false;
- char buf[1024];
- int char_idx = 0;
- for (int i = 7; i >= 0; i--)
- {
- if (BIT(data, i))
- {
- char_idx += sprintf(&buf[char_idx], "%s%s", comma ? ", " : "", s_sources[i]);
- comma = true;
- }
- }
- buf[char_idx] = 0;
- LOGMASKED(LOG_IO_WRITES, " %s\n", buf);
- break;
- }
-
- case 0x2e: // FIQ Source Select
- {
- static const char* const s_fiq_select[8] =
- {
- "PPU", "SPU Channel", "Timer A", "Timer B", "UART/SPI", "External", "Reserved", "None"
- };
- LOGMASKED(LOG_IRQS, "io_w: FIQ Source Select (not yet implemented) = %04x, %s\n", data, s_fiq_select[data & 7]);
- m_io_regs[offset] = data;
- break;
- }
-
- case 0x2f: // Data Segment
- {
- uint16_t ds = m_cpu->state_int(UNSP_SR);
- m_cpu->set_state_int(UNSP_SR, (ds & 0x03ff) | ((data & 0x3f) << 10));
- LOGMASKED(LOG_SEGMENT, "io_w: Data Segment = %04x\n", data);
- break;
- }
-
- case 0x30: // UART Control
- {
- static const char* const s_9th_bit[4] = { "0", "1", "Odd", "Even" };
- LOGMASKED(LOG_UART, "io_w: UART Control = %04x (TxEn:%d, RxEn:%d, Bits:%d, MultiProc:%d, 9thBit:%s, TxIntEn:%d, RxIntEn:%d\n", data
- , BIT(data, 7), BIT(data, 6), BIT(data, 5) ? 9 : 8, BIT(data, 4), s_9th_bit[(data >> 2) & 3], BIT(data, 1), BIT(data, 0));
- const uint16_t changed = m_io_regs[offset] ^ data;
- m_io_regs[offset] = data;
- if (!BIT(data, 6))
- {
- m_uart_rx_available = false;
- m_io_regs[0x36] = 0;
- }
- if (BIT(changed, 7) && BIT(data, 7))
- {
- m_io_regs[0x31] |= 0x0002;
- }
- break;
- }
-
- case 0x31: // UART Status
- LOGMASKED(LOG_UART, "io_w: UART Status = %04x\n", data);
- m_io_regs[offset] &= ~data;
- break;
-
- case 0x33: // UART Baud Rate (low byte)
- case 0x34: // UART Baud Rate (high byte)
- {
- m_io_regs[offset] = data;
- const uint32_t divisor = 16 * (0x10000 - ((m_io_regs[0x34] << 8) | m_io_regs[0x33]));
- LOGMASKED(LOG_UART, "io_w: UART Baud Rate (%s byte): Baud rate = %d\n", offset == 0x33 ? "low" : "high", 27000000 / divisor);
- break;
- }
-
- case 0x35: // UART TX Data
- LOGMASKED(LOG_UART, "io_w: UART Tx Data = %02x\n", data & 0x00ff);
- m_io_regs[offset] = data;
- m_uart_tx((uint8_t)data);
- m_io_regs[0x31] |= 2;
- break;
-
- case 0x36: // UART RX Data
- LOGMASKED(LOG_UART, "io_w: UART Rx Data (read-only) = %04x\n", data);
- break;
-
- case 0x37: // UART Rx FIFO Control
- LOGMASKED(LOG_UART, "io_w: UART Rx FIFO Control = %04x (Reset:%d, Overrun:%d, Underrun:%d, Count:%d, Threshold:%d)\n", data
- , BIT(data, 15), BIT(data, 14), BIT(data, 13), (data >> 4) & 7, data & 7);
- if (data & 0x8000)
- {
- m_uart_rx_available = false;
- m_io_regs[0x36] = 0;
- }
- m_io_regs[offset] &= ~data & 0x6000;
- m_io_regs[offset] &= ~0x0007;
- m_io_regs[offset] |= data & 0x0007;
- break;
-
- case 0x58: // I2C Command
- LOGMASKED(LOG_I2C, "io_w: I2C Command = %04x\n", data);
- m_io_regs[offset] = data;
- do_i2c();
- break;
-
- case 0x59: // I2C Status / Acknowledge
- LOGMASKED(LOG_I2C, "io_w: I2C Acknowledge = %04x\n", data);
- m_io_regs[offset] &= ~data;
- break;
-
- case 0x5a: // I2C Access Mode
- LOGMASKED(LOG_I2C, "io_w: I2C Access Mode = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x5b: // I2C Device Address
- LOGMASKED(LOG_I2C, "io_w: I2C Device Address = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x5c: // I2C Sub-Address
- LOGMASKED(LOG_I2C, "io_w: I2C Sub-Address = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x5d: // I2C Data Out
- LOGMASKED(LOG_I2C, "io_w: I2C Data Out = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x5e: // I2C Data In
- LOGMASKED(LOG_I2C, "io_w: I2C Data In = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x5f: // I2C Controller Mode
- LOGMASKED(LOG_I2C, "io_w: I2C Controller Mode = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x100: // DMA Source (lo)
- LOGMASKED(LOG_DMA, "io_w: DMA Source (lo) = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x101: // DMA Source (hi)
- LOGMASKED(LOG_DMA, "io_w: DMA Source (hi) = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x103: // DMA Destination
- LOGMASKED(LOG_DMA, "io_w: DMA Dest = %04x\n", data);
- m_io_regs[offset] = data;
- break;
-
- case 0x102: // DMA Length
- LOGMASKED(LOG_DMA, "io_w: DMA Length = %04x\n", data);
- do_cpu_dma(data);
+ case 0x003: // DMA Destination
+ LOGMASKED(LOG_DMA, "dma_w: DMA Dest = %04x\n", data);
+ m_dma_regs[offset] = data;
break;
default:
- LOGMASKED(LOG_UNKNOWN_IO, "io_w: Unknown register %04x = %04x\n", 0x3d00 + offset, data);
- m_io_regs[offset] = data;
+ LOGMASKED(LOG_UNKNOWN_IO, "dma_w: Unknown register %04x = %04x\n", 0x3d00 + offset, data);
+ m_dma_regs[offset] = data;
break;
}
}
@@ -1396,145 +969,29 @@ void spg2xx_device::device_timer(emu_timer &timer, device_timer_id id, int param
{
switch (id)
{
- case TIMER_TMB1:
- {
- LOGMASKED(LOG_TIMERS, "TMB1 elapsed, setting IRQ Status bit 0 (old:%04x, new:%04x, enable:%04x)\n", IO_IRQ_STATUS, IO_IRQ_STATUS | 1, IO_IRQ_ENABLE);
- IO_IRQ_STATUS |= 1;
- check_irqs(0x0001);
- break;
- }
-
- case TIMER_TMB2:
- {
- LOGMASKED(LOG_TIMERS, "TMB2 elapsed, setting IRQ Status bit 1 (old:%04x, new:%04x, enable:%04x)\n", IO_IRQ_STATUS, IO_IRQ_STATUS | 2, IO_IRQ_ENABLE);
- IO_IRQ_STATUS |= 2;
- check_irqs(0x0002);
- break;
- }
-
case TIMER_SCREENPOS:
{
- const uint16_t old = VIDEO_IRQ_ENABLE & VIDEO_IRQ_STATUS;
- VIDEO_IRQ_STATUS |= 2;
- const uint16_t changed = old ^ (VIDEO_IRQ_ENABLE & VIDEO_IRQ_STATUS);
- if (changed)
+ if (VIDEO_IRQ_ENABLE & 2)
{
+ VIDEO_IRQ_STATUS |= 2;
check_video_irq();
}
m_screen->update_partial(m_screen->vpos());
- break;
- }
- case TIMER_BEAT:
- {
- audio_frame_tick();
+ // fire again, jak_dbz pinball needs this
+ m_screenpos_timer->adjust(m_screen->time_until_pos(m_video_regs[0x36], m_video_regs[0x37] << 1));
break;
}
}
}
-void spg2xx_device::check_irqs(const uint16_t changed)
-{
- // {
- // m_cpu->set_input_line(UNSP_IRQ1_LINE, ASSERT_LINE);
- // }
-
- if (changed & 0x0c00) // Timer A, Timer B IRQ
- {
- LOGMASKED(LOG_IRQS, "%ssserting IRQ2 (%04x)\n", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? "A" : "Dea", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b));
- m_cpu->set_input_line(UNSP_IRQ2_LINE, (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x0c00) ? ASSERT_LINE : CLEAR_LINE);
- }
-
- if (changed & 0x2100) // UART, ADC IRQ
- {
- LOGMASKED(LOG_IRQS, "%ssserting IRQ3 (%04x)\n", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? "A" : "Dea", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b));
- m_cpu->set_input_line(UNSP_IRQ3_LINE, (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x2100) ? ASSERT_LINE : CLEAR_LINE);
- }
-
- if (changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK)) // Beat IRQ
- {
- if ((m_audio_regs[AUDIO_BEAT_COUNT] & (AUDIO_BIS_MASK | AUDIO_BIE_MASK)) == (AUDIO_BIS_MASK | AUDIO_BIE_MASK))
- {
- LOGMASKED(LOG_BEAT, "Asserting beat IRQ\n");
- m_cpu->set_input_line(UNSP_IRQ4_LINE, ASSERT_LINE);
- }
- else
- {
- LOGMASKED(LOG_BEAT, "Clearing beat IRQ\n");
- m_cpu->set_input_line(UNSP_IRQ4_LINE, CLEAR_LINE);
- }
- }
-
- if (changed & 0x1200) // External IRQ
- {
- LOGMASKED(LOG_IRQS, "%ssserting IRQ5 (%04x)\n", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? "A" : "Dea", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b));
- m_cpu->set_input_line(UNSP_IRQ5_LINE, (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x1200) ? ASSERT_LINE : CLEAR_LINE);
- }
-
- if (changed & 0x0070) // 1024Hz, 2048Hz, 4096Hz IRQ
- {
- LOGMASKED(LOG_IRQS, "%ssserting IRQ6 (%04x)\n", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? "A" : "Dea", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b));
- m_cpu->set_input_line(UNSP_IRQ6_LINE, (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x0070) ? ASSERT_LINE : CLEAR_LINE);
- }
-
- if (changed & 0x008b) // TMB1, TMB2, 4Hz, key change IRQ
- {
- LOGMASKED(LOG_IRQS, "%ssserting IRQ7 (%04x)\n", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? "A" : "Dea", (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b));
- m_cpu->set_input_line(UNSP_IRQ7_LINE, (IO_IRQ_ENABLE & IO_IRQ_STATUS & 0x008b) ? ASSERT_LINE : CLEAR_LINE);
- }
-}
-
-void spg2xx_device::do_gpio(uint32_t offset)
-{
- uint32_t index = (offset - 1) / 5;
- uint16_t buffer = m_io_regs[5 * index + 2];
- uint16_t dir = m_io_regs[5 * index + 3];
- uint16_t attr = m_io_regs[5 * index + 4];
- uint16_t special = m_io_regs[5 * index + 5];
-
- uint16_t push = dir;
- uint16_t pull = (~dir) & (~attr);
- uint16_t what = (buffer & (push | pull));
- what ^= (dir & ~attr);
- what &= ~special;
-
- switch (index)
- {
- case 0:
- m_porta_out(0, what, push &~ special);
- what = (what & ~pull) | (m_porta_in(0, pull &~ special) & pull);
- break;
- case 1:
- m_portb_out(0, what, push &~ special);
- what = (what & ~pull) | (m_portb_in(0, pull &~ special) & pull);
- break;
- case 2:
- m_portc_out(0, what, push &~ special);
- what = (what & ~pull) | (m_portc_in(0, pull &~ special) & pull);
- break;
- }
-
- m_io_regs[5 * index + 1] = what;
-}
-
-void spg2xx_device::do_i2c()
-{
- const uint16_t addr = ((m_io_regs[0x5b] & 0x06) << 7) | (uint8_t)m_io_regs[0x5c];
-
- if (m_io_regs[0x58] & 0x40) // Serial EEPROM read
- m_io_regs[0x5e] = m_eeprom_r(addr);
- else
- m_eeprom_w(addr, m_io_regs[0x5d]);
-
- m_io_regs[0x59] |= 1;
-}
void spg2xx_device::do_cpu_dma(uint32_t len)
{
address_space &mem = m_cpu->space(AS_PROGRAM);
- uint32_t src = ((m_io_regs[0x101] & 0x3f) << 16) | m_io_regs[0x100];
- uint32_t dst = m_io_regs[0x103] & 0x3fff;
+ uint32_t src = ((m_dma_regs[0x001] & 0x3f) << 16) | m_dma_regs[0x000];
+ uint32_t dst = m_dma_regs[0x003] & 0x3fff;
for (uint32_t j = 0; j < len; j++)
{
@@ -1542,1128 +999,56 @@ void spg2xx_device::do_cpu_dma(uint32_t len)
}
src += len;
- m_io_regs[0x100] = (uint16_t)src;
- m_io_regs[0x101] = (src >> 16) & 0x3f;
- m_io_regs[0x102] = 0;
- m_io_regs[0x103] = (dst + len) & 0x3fff;
-}
-
-/***********************
-* Audio Hardware *
-***********************/
-
-READ16_MEMBER(spg2xx_device::audio_r)
-{
- const uint16_t channel = (offset & 0x00f0) >> 4;
- uint16_t data = m_audio_regs[offset];
-
- if (offset >= 0x400)
- {
- switch (offset)
- {
- case AUDIO_CHANNEL_ENABLE:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Enable: %04x\n", data);
- break;
-
- case AUDIO_MAIN_VOLUME:
- LOGMASKED(LOG_SPU_READS, "audio_r: Main Volume: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_FIQ_ENABLE:
- LOGMASKED(LOG_SPU_READS | LOG_IRQS, "audio_r: Channel FIQ Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_FIQ_STATUS:
- LOGMASKED(LOG_SPU_READS | LOG_IRQS, "audio_r: Channel FIQ Acknowledge: %04x\n", data);
- break;
-
- case AUDIO_BEAT_BASE_COUNT:
- LOGMASKED(LOG_SPU_READS | LOG_BEAT, "audio_r: Beat Base Count: %04x\n", data);
- break;
-
- case AUDIO_BEAT_COUNT:
- LOGMASKED(LOG_SPU_READS | LOG_BEAT, "audio_r: Beat Count: %04x\n", data);
- break;
-
- case AUDIO_ENVCLK0:
- case AUDIO_ENVCLK1:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_r: Envelope Interval %d (lo): %04x\n", offset == AUDIO_ENVCLK0 ? 0 : 1, data);
- break;
-
- case AUDIO_ENVCLK0_HIGH:
- case AUDIO_ENVCLK1_HIGH:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_r: Envelope Interval %d (hi): %04x\n", offset == AUDIO_ENVCLK0_HIGH ? 0 : 1, data);
- break;
-
- case AUDIO_ENV_RAMP_DOWN:
- LOGMASKED(LOG_SPU_READS | LOG_RAMPDOWN, "audio_r: Envelope Fast Ramp Down: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_STOP:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Stop Status: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ZERO_CROSS:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Zero-Cross Enable: %04x\n", data);
- break;
-
- case AUDIO_CONTROL:
- LOGMASKED(LOG_SPU_READS, "audio_r: Control: %04x\n", data);
- break;
-
- case AUDIO_COMPRESS_CTRL:
- LOGMASKED(LOG_SPU_READS, "audio_r: Compressor Control: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_STATUS:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Status: %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_L:
- LOGMASKED(LOG_SPU_READS, "audio_r: Wave In (L) / FIFO Write Data: %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_R:
- LOGMASKED(LOG_SPU_READS, "audio_r: Wave In (R) / Software Channel FIFO IRQ Control: %04x\n", data);
- break;
-
- case AUDIO_WAVE_OUT_L:
- LOGMASKED(LOG_SPU_READS, "audio_r: Wave Out (L): %04x\n", data);
- break;
-
- case AUDIO_WAVE_OUT_R:
- LOGMASKED(LOG_SPU_READS, "audio_r: Wave Out (R): %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_REPEAT:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Repeat Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ENV_MODE:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_r: Channel Envelope Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_TONE_RELEASE:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Tone Release Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ENV_IRQ:
- LOGMASKED(LOG_SPU_READS | LOG_IRQS, "audio_r: Channel Envelope IRQ Status: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_PITCH_BEND:
- LOGMASKED(LOG_SPU_READS, "audio_r: Channel Pitch Bend Enable: %04x\n", data);
- break;
-
- case AUDIO_SOFT_PHASE:
- LOGMASKED(LOG_SPU_READS, "audio_r: Software Channel Phase: %04x\n", data);
- break;
-
- case AUDIO_ATTACK_RELEASE:
- LOGMASKED(LOG_SPU_READS, "audio_r: Attack/Release Time Control: %04x\n", data);
- break;
-
- case AUDIO_EQ_CUTOFF10:
- LOGMASKED(LOG_SPU_READS, "audio_r: EQ Cutoff Frequency 0/1: %04x\n", data);
- break;
-
- case AUDIO_EQ_CUTOFF32:
- LOGMASKED(LOG_SPU_READS, "audio_r: EQ Cutoff Frequency 2/3: %04x\n", data);
- break;
-
- case AUDIO_EQ_GAIN10:
- LOGMASKED(LOG_SPU_READS, "audio_r: EQ Cutoff Gain 0/1: %04x\n", data);
- break;
-
- case AUDIO_EQ_GAIN32:
- LOGMASKED(LOG_SPU_READS, "audio_r: EQ Cutoff Gain 2/3: %04x\n", data);
- break;
-
- default:
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_r: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
- }
- else if (channel < 16)
- {
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_WAVE_ADDR:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_MODE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Mode: %04x (ADPCM:%d, 16M:%d, TONE:%d, LADDR_HI:%04x, WADDR_HI:%04x)\n", channel, data,
- get_adpcm_bit(channel), get_16bit_bit(channel), get_tone_mode(channel), get_loop_addr_high(channel), get_wave_addr_high(channel));
- break;
-
- case AUDIO_LOOP_ADDR:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Loop Addr: %04x\n", channel, data);
- break;
-
- case AUDIO_PAN_VOL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Pan/Vol: %04x (PAN:%02x, VOL:%02x)\n", channel, data,
- get_pan(channel), get_volume(channel));
- break;
-
- case AUDIO_ENVELOPE0:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope0: %04x (RPTPER:%d, TARGET:%02x, SIGN:%d, INC:%02x)\n", channel, data,
- get_repeat_period_bit(channel), get_envelope_target(channel), get_envelope_sign_bit(channel), get_envelope_inc(channel));
- break;
-
- case AUDIO_ENVELOPE_DATA:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Data: %04x (CNT:%d, EDD:%02x)\n", channel, data,
- get_envelope_count(channel), get_edd(channel));
- break;
-
- case AUDIO_ENVELOPE1:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope1 Data: %04x (RPTCNT:%02x, RPT:%d, LOAD:%02x)\n", channel, data,
- get_envelope_repeat_count(channel), get_envelope_repeat_bit(channel), get_envelope_load(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR_HIGH:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Addr (hi): %04x (IRQADDR:%03x, IRQEN:%d, EADDR_HI:%02x)\n", channel, data,
- get_audio_irq_addr(channel), get_audio_irq_enable_bit(channel), get_envelope_addr_high(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Addr (lo): %04x \n", channel, data);
- break;
-
- case AUDIO_WAVE_DATA_PREV:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Data Prev: %04x \n", channel, data);
- break;
-
- case AUDIO_ENVELOPE_LOOP_CTRL:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Loop Ctrl: %04x (RDOFFS:%02x, EAOFFS:%03x)\n", channel, data,
- get_rampdown_offset(channel), get_envelope_eaoffset(channel));
- break;
-
- case AUDIO_WAVE_DATA:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Data: %04x\n", channel, data);
- break;
-
- case AUDIO_ADPCM_SEL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: ADPCM Sel: %04x (ADPCM36:%d, POINTNUM:%02x\n", channel, data,
- get_adpcm36_bit(channel), get_point_number(channel));
- break;
-
- case AUDIO_PHASE_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_ACCUM_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Phase Accum High: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Target Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_RAMP_DOWN_CLOCK:
- LOGMASKED(LOG_CHANNEL_READS | LOG_RAMPDOWN, "audio_r: Channel %d: Rampdown Clock: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_ACCUM:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Phase Accum: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Target Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_CTRL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Phase Ctrl: %04x (TIMESTEP:%d, SIGN:%d, OFFSET:%03x\n", channel, data,
- get_phase_time_step(channel), get_phase_sign_bit(channel), get_phase_offset(channel));
- break;
-
- default:
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_r: Unknown register %04x\n", 0x3000 + offset);
- break;
- }
- }
- else if (channel >= 16)
- {
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_r: Trying to read from channel %d\n", channel);
- }
- return data;
+ m_dma_regs[0x000] = (uint16_t)src;
+ m_dma_regs[0x001] = (src >> 16) & 0x3f;
+ m_dma_regs[0x002] = 0;
+ m_dma_regs[0x003] = (dst + len) & 0x3fff;
}
-WRITE16_MEMBER(spg2xx_device::audio_w)
+void spg2xx_device::configure_spg_io(spg2xx_io_device* io)
{
- const uint16_t channel = (offset & 0x00f0) >> 4;
-
- if (offset >= 0x400)
- {
- switch (offset)
- {
- case AUDIO_CHANNEL_ENABLE:
- {
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Enable: %04x\n", data);
- const uint16_t changed = m_audio_regs[AUDIO_CHANNEL_ENABLE] ^ data;
- for (uint32_t channel_bit = 0; channel_bit < 16; channel_bit++)
- {
- const uint16_t mask = 1 << channel_bit;
- if (!(changed & mask))
- continue;
-
- if (data & mask)
- {
- if (!(m_audio_regs[AUDIO_CHANNEL_STATUS] & mask))
- {
- LOGMASKED(LOG_SPU_WRITES, "Enabling channel %d\n", channel_bit);
- m_audio_regs[offset] |= mask;
- if (!(m_audio_regs[AUDIO_CHANNEL_STOP] & mask))
- {
- LOGMASKED(LOG_SPU_WRITES, "Stop not set, starting playback on channel %d, mask %04x\n", channel_bit, mask);
- m_audio_regs[AUDIO_CHANNEL_STATUS] |= mask;
- m_sample_addr[channel_bit] = get_wave_addr(channel_bit);
- m_envelope_addr[channel_bit] = get_envelope_addr(channel_bit);
- set_envelope_count(channel, get_envelope_load(channel));
- }
- m_adpcm[channel_bit].reset();
- m_sample_shift[channel_bit] = 0;
- m_sample_count[channel_bit] = 0;
- }
- }
- else
- {
- m_audio_regs[offset] &= ~mask;
- m_audio_regs[AUDIO_CHANNEL_STATUS] &= ~mask;
- m_audio_regs[AUDIO_CHANNEL_STOP] |= mask;
- m_audio_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~mask;
- }
- }
- break;
- }
-
- case AUDIO_MAIN_VOLUME:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Main Volume: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_MAIN_VOLUME_MASK;
- break;
-
- case AUDIO_CHANNEL_FIQ_ENABLE:
- LOGMASKED(LOG_SPU_WRITES | LOG_IRQS, "audio_w: Channel FIQ Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_FIQ_ENABLE_MASK;
- break;
-
- case AUDIO_CHANNEL_FIQ_STATUS:
- LOGMASKED(LOG_SPU_WRITES | LOG_IRQS, "audio_w: Channel FIQ Acknowledge: %04x\n", data);
- m_audio_regs[offset] &= ~(data & AUDIO_CHANNEL_FIQ_STATUS_MASK);
- break;
-
- case AUDIO_BEAT_BASE_COUNT:
- LOGMASKED(LOG_SPU_WRITES | LOG_BEAT, "audio_w: Beat Base Count: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_BEAT_BASE_COUNT_MASK;
- m_audio_curr_beat_base_count = m_audio_regs[offset];
- break;
-
- case AUDIO_BEAT_COUNT:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_BEAT, "audio_w: Beat Count: %04x\n", data);
- const uint16_t old = m_audio_regs[offset];
- m_audio_regs[offset] &= ~(data & AUDIO_BIS_MASK);
- m_audio_regs[offset] &= AUDIO_BIS_MASK;
- m_audio_regs[offset] |= data & ~AUDIO_BIS_MASK;
- const uint16_t changed = old ^ m_audio_regs[offset];
- if (data == 0xc000 && m_audio_regs[offset])
- {
- }
- if (changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK))
- {
- LOGMASKED(LOG_BEAT, "BIS mask changed, updating IRQ\n");
- check_irqs(changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK));
- }
- break;
- }
-
- case AUDIO_ENVCLK0:
- case AUDIO_ENVCLK1:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_w: Envelope Interval %d (lo): %04x\n", offset == AUDIO_ENVCLK0 ? 0 : 1, data);
- const uint16_t old = m_audio_regs[offset];
- m_audio_regs[offset] = data;
- const uint16_t changed = old ^ m_audio_regs[offset];
-
- if (!changed)
- break;
-
- const uint8_t channel_offset = offset == AUDIO_ENVCLK0 ? 0 : 8;
- for (uint8_t channel_bit = 0; channel_bit < 4; channel_bit++)
- {
- const uint8_t shift = channel_bit << 2;
- const uint16_t mask = 0x0f << shift;
- if (changed & mask)
- {
- m_envclk_frame[channel_bit + channel_offset] = get_envclk_frame_count(channel_bit + channel_offset);
- }
- }
- break;
- }
-
- case AUDIO_ENVCLK0_HIGH:
- case AUDIO_ENVCLK1_HIGH:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_w: Envelope Interval %d (hi): %04x\n", offset == AUDIO_ENVCLK0_HIGH ? 0 : 1, data);
- const uint16_t old = m_audio_regs[offset];
- m_audio_regs[offset] = data;
- const uint16_t changed = old ^ m_audio_regs[offset];
- if (!changed)
- break;
-
- const uint8_t channel_offset = offset == AUDIO_ENVCLK0_HIGH ? 0 : 8;
- for (uint8_t channel_bit = 0; channel_bit < 4; channel_bit++)
- {
- const uint8_t shift = channel_bit << 2;
- const uint16_t mask = 0x0f << shift;
- if (changed & mask)
- {
- m_envclk_frame[channel_bit + channel_offset + 4] = get_envclk_frame_count(channel_bit + channel_offset);
- }
- }
- break;
- }
-
- case AUDIO_ENV_RAMP_DOWN:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_RAMPDOWN, "audio_w: Envelope Fast Ramp Down: %04x\n", data);
- const uint16_t old = m_audio_regs[offset];
- m_audio_regs[offset] = data & AUDIO_ENV_RAMP_DOWN_MASK;
- const uint16_t changed = old ^ m_audio_regs[offset];
- if (!changed)
- break;
-
- for (uint32_t channel_bit = 0; channel_bit < 16; channel_bit++)
- {
- const uint16_t mask = 1 << channel_bit;
- if ((changed & mask) && (data & mask))
- {
- m_rampdown_frame[channel_bit] = get_rampdown_frame_count(channel_bit);
- LOGMASKED(LOG_RAMPDOWN, "Preparing to ramp down channel %d in %d ticks\n", channel_bit, m_rampdown_frame[channel_bit] / 13);
- }
- }
- break;
- }
-
- case AUDIO_CHANNEL_STOP:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Stop Status: %04x\n", data);
- m_audio_regs[offset] &= ~data;
- m_audio_regs[AUDIO_CHANNEL_ENABLE] &= ~data;
- break;
-
- case AUDIO_CHANNEL_ZERO_CROSS:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Zero-Cross Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_ZERO_CROSS_MASK;
- break;
-
- case AUDIO_CONTROL:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Control: %04x (SOFTCH:%d, COMPEN:%d, NOHIGH:%d, NOINT:%d, EQEN:%d\n", data
- , (data & AUDIO_CONTROL_SOFTCH_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_COMPEN_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_NOHIGH_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_NOINT_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_EQEN_MASK) ? 1 : 0);
- m_audio_regs[offset] = data & AUDIO_CONTROL_MASK;
- break;
-
- case AUDIO_COMPRESS_CTRL:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Compressor Control: %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_CHANNEL_STATUS:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Status (read-only): %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_L:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Wave In (L) / FIFO Write Data: %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_IN_R:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Wave In (R) / Software Channel FIFO IRQ Control: %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_OUT_L:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Wave Out (L): %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_OUT_R:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Wave Out (R): %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_CHANNEL_REPEAT:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Repeat Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_REPEAT_MASK;
- break;
-
- case AUDIO_CHANNEL_ENV_MODE:
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_w: Channel Envelope Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_ENV_MODE_MASK;
- break;
-
- case AUDIO_CHANNEL_TONE_RELEASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Tone Release Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_TONE_RELEASE_MASK;
- break;
-
- case AUDIO_CHANNEL_ENV_IRQ:
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES | LOG_IRQS, "audio_w: Channel Envelope IRQ Acknowledge: %04x\n", data);
- m_audio_regs[offset] &= ~data & AUDIO_CHANNEL_ENV_IRQ_MASK;
- break;
-
- case AUDIO_CHANNEL_PITCH_BEND:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Channel Pitch Bend Enable: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_CHANNEL_PITCH_BEND_MASK;
- break;
-
- case AUDIO_SOFT_PHASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Software Channel Phase: %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_ATTACK_RELEASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: Attack/Release Time Control: %04x\n", data);
- m_audio_regs[offset] = data;
- break;
-
- case AUDIO_EQ_CUTOFF10:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: EQ Cutoff Frequency 0/1: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_EQ_CUTOFF10_MASK;
- break;
-
- case AUDIO_EQ_CUTOFF32:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: EQ Cutoff Frequency 2/3: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_EQ_CUTOFF32_MASK;
- break;
-
- case AUDIO_EQ_GAIN10:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: EQ Cutoff Gain 0/1: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_EQ_GAIN10_MASK;
- break;
-
- case AUDIO_EQ_GAIN32:
- LOGMASKED(LOG_SPU_WRITES, "audio_w: EQ Cutoff Gain 2/3: %04x\n", data);
- m_audio_regs[offset] = data & AUDIO_EQ_GAIN32_MASK;
- break;
-
- default:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_w: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
- }
- else if (channel < 16)
- {
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_WAVE_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_MODE:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Mode: %04x (ADPCM:%d, 16M:%d, TONE:%d, LADDR_HI:%04x, WADDR_HI:%04x)\n", channel, data,
- get_adpcm_bit(channel), get_16bit_bit(channel), get_tone_mode(channel), get_loop_addr_high(channel), get_wave_addr_high(channel));
- break;
-
- case AUDIO_LOOP_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Loop Addr: %04x\n", channel, data);
- break;
-
- case AUDIO_PAN_VOL:
- m_audio_regs[offset] = data & AUDIO_PAN_VOL_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Pan/Vol: %04x (PAN:%02x, VOL:%02x)\n", channel, data,
- get_pan(channel), get_volume(channel));
- break;
-
- case AUDIO_ENVELOPE0:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope0: %04x (RPTPER:%d, TARGET:%02x, SIGN:%d, INC:%02x)\n", channel, data,
- get_repeat_period_bit(channel), get_envelope_target(channel), get_envelope_sign_bit(channel), get_envelope_inc(channel));
- break;
-
- case AUDIO_ENVELOPE_DATA:
- m_audio_regs[offset] = data & AUDIO_ENVELOPE_DATA_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Data: %04x (CNT:%d, EDD:%02x)\n", channel, data,
- get_envelope_count(channel), get_edd(channel));
- break;
-
- case AUDIO_ENVELOPE1:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope1 Data: %04x (RPTCNT:%02x, RPT:%d, LOAD:%02x)\n", channel, data,
- get_envelope_repeat_count(channel), get_envelope_repeat_bit(channel), get_envelope_load(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR_HIGH:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Addr (hi): %04x (IRQADDR:%03x, IRQEN:%d, EADDR_HI:%02x)\n", channel, data,
- get_audio_irq_addr(channel), get_audio_irq_enable_bit(channel), get_envelope_addr_high(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_WAVE_DATA_PREV:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Data Prev: %04x \n", channel, data);
- break;
-
- case AUDIO_ENVELOPE_LOOP_CTRL:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Loop Ctrl: %04x (RDOFFS:%02x, EAOFFS:%03x)\n", channel, data,
- get_rampdown_offset(channel), get_envelope_eaoffset(channel));
- break;
-
- case AUDIO_WAVE_DATA:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Data: %04x\n", channel, data);
- break;
-
- case AUDIO_ADPCM_SEL:
- m_audio_regs[offset] = data & AUDIO_ADPCM_SEL_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: ADPCM Sel: %04x (ADPCM36:%d, POINTNUM:%02x\n", channel, data,
- get_adpcm36_bit(channel), get_point_number(channel));
- break;
-
- case AUDIO_PHASE_HIGH:
- m_audio_regs[offset] = data & AUDIO_PHASE_HIGH_MASK;
- m_channel_rate[channel] = ((double)get_phase(channel) * 140625.0 * 2.0) / (double)(1 << 19);
- m_channel_rate_accum[channel] = 0.0;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Phase High: %04x (rate: %f)\n", channel, data, m_channel_rate[channel]);
- break;
-
- case AUDIO_PHASE_ACCUM_HIGH:
- m_audio_regs[offset] = data & AUDIO_PHASE_ACCUM_HIGH_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Phase Accum High: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE_HIGH:
- m_audio_regs[offset] = data & AUDIO_TARGET_PHASE_HIGH_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Target Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_RAMP_DOWN_CLOCK:
- m_audio_regs[offset] = data & AUDIO_RAMP_DOWN_CLOCK_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_RAMPDOWN, "audio_w: Channel %d: Rampdown Clock: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE:
- m_audio_regs[offset] = data;
- m_channel_rate[channel] = ((double)get_phase(channel) * 140625.0 * 2.0) / (double)(1 << 19);
- m_channel_rate_accum[channel] = 0.0;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Phase: %04x (rate: %f)\n", channel, data, m_channel_rate[channel]);
- break;
-
- case AUDIO_PHASE_ACCUM:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Phase Accum: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Target Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_CTRL:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Phase Ctrl: %04x (TIMESTEP:%d, SIGN:%d, OFFSET:%03x\n", channel, data,
- get_phase_time_step(channel), get_phase_sign_bit(channel), get_phase_offset(channel));
- break;
-
- default:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_w: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
- }
- else if (channel >= 16)
- {
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_w: Trying to write to channel %d: %04x = %04x\n", channel, 0x3000 + offset, data);
- }
- else
- {
- m_audio_regs[offset] = data;
- }
-}
-
-void spg2xx_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
-{
- stream_sample_t *out_l = outputs[0];
- stream_sample_t *out_r = outputs[1];
- address_space &space = m_cpu->space(AS_PROGRAM);
-
- for (int i = 0; i < samples; i++)
- {
- int32_t left_total = 0;
- int32_t right_total = 0;
- int32_t active_count = 0;
-
- for (uint32_t ch_index = 0; ch_index < 16; ch_index++)
- {
- if (!get_channel_status(ch_index))
- {
- continue;
- }
-
- if (SPG_DEBUG_AUDIO && m_debug_rates)
- printf("%f:%f ", m_channel_rate[ch_index], m_channel_rate_accum[ch_index]);
- bool playing = advance_channel(space, ch_index);
- if (playing)
- {
- int32_t sample = (int16_t)(m_audio_regs[(ch_index << 4) | AUDIO_WAVE_DATA] ^ 0x8000);
- if (!(m_audio_regs[AUDIO_CONTROL] & AUDIO_CONTROL_NOINT_MASK))
- {
- int32_t prev_sample = (int16_t)(m_audio_regs[(ch_index << 4) | AUDIO_WAVE_DATA_PREV] ^ 0x8000);
- int16_t lerp_factor = (int16_t)((m_channel_rate_accum[ch_index] / 44100.0) * 256.0);
- prev_sample = (prev_sample * (0x100 - lerp_factor)) >> 8;
- sample = (sample * lerp_factor) >> 8;
- sample += prev_sample;
- }
-
- sample = (sample * (int16_t)get_edd(ch_index)) >> 7;
-
- active_count++;
-
- int32_t vol = get_volume(ch_index);
- int32_t pan = get_pan(ch_index);
-
- int32_t pan_left, pan_right;
- if (pan < 0x40)
- {
- pan_left = 0x7f * vol;
- pan_right = pan * 2 * vol;
- }
- else
- {
- pan_left = (0x7f - pan) * 2 * vol;
- pan_right = 0x7f * vol;
- }
-
- left_total += ((int16_t)sample * (int16_t)pan_left) >> 14;
- right_total += ((int16_t)sample * (int16_t)pan_right) >> 14;
- }
- }
-
- if (active_count)
- {
- left_total /= active_count;
- right_total /= active_count;
- *out_l++ = (left_total * (int16_t)m_audio_regs[AUDIO_MAIN_VOLUME]) >> 7;
- *out_r++ = (right_total * (int16_t)m_audio_regs[AUDIO_MAIN_VOLUME]) >> 7;
- }
- else
- {
- *out_l++ = 0;
- *out_r++ = 0;
- }
- }
-}
-
-inline void spg2xx_device::stop_channel(const uint32_t channel)
-{
- // TODO: IRQs
- m_audio_regs[AUDIO_CHANNEL_ENABLE] &= ~(1 << channel);
- m_audio_regs[AUDIO_CHANNEL_STATUS] &= ~(1 << channel);
- m_audio_regs[AUDIO_CHANNEL_STOP] |= (1 << channel);
- m_audio_regs[(channel << 4) | AUDIO_MODE] &= ~AUDIO_ADPCM_MASK;
- m_audio_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~(1 << channel);
-}
-
-bool spg2xx_device::advance_channel(address_space &space, const uint32_t channel)
-{
- m_channel_rate_accum[channel] += m_channel_rate[channel];
- uint32_t samples_to_advance = 0;
- while (m_channel_rate_accum[channel] >= 44100.0)
- {
- m_channel_rate_accum[channel] -= 44100.0;
- samples_to_advance++;
- }
-
- if (!samples_to_advance)
- return true;
-
- bool playing = true;
-
- if (get_adpcm_bit(channel))
- {
- // ADPCM mode
- for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
- {
- playing = fetch_sample(space, channel);
- if (playing)
- {
- m_sample_shift[channel] += 4;
- if (m_sample_shift[channel] == 16)
- {
- m_sample_shift[channel] = 0;
- m_sample_addr[channel]++;
- }
- }
- }
- }
- else if (get_16bit_bit(channel))
- {
- // 16-bit mode
- for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
- {
- playing = fetch_sample(space, channel);
- if (playing)
- m_sample_addr[channel]++;
- }
- }
- else
- {
- // 8-bit mode
- for (uint32_t sample = 0; sample < samples_to_advance && playing; sample++)
- {
- playing = fetch_sample(space, channel);
- if (playing)
- {
- m_sample_shift[channel] += 8;
- if (m_sample_shift[channel] == 16)
- {
- m_sample_shift[channel] = 0;
- m_sample_addr[channel]++;
- }
- }
- }
- }
-
- return playing;
-}
-
-bool spg2xx_device::fetch_sample(address_space &space, const uint32_t channel)
-{
- const uint32_t channel_mask = channel << 4;
- m_audio_regs[channel_mask | AUDIO_WAVE_DATA_PREV] = m_audio_regs[channel_mask | AUDIO_WAVE_DATA];
-
- const uint32_t wave_data_reg = channel_mask | AUDIO_WAVE_DATA;
- const uint16_t tone_mode = get_tone_mode(channel);
- const uint16_t raw_sample = tone_mode ? space.read_word(m_sample_addr[channel]) : m_audio_regs[wave_data_reg];
-
- m_audio_regs[wave_data_reg] = raw_sample;
-
- if (get_adpcm_bit(channel))
- {
- // ADPCM mode
- m_audio_regs[wave_data_reg] >>= m_sample_shift[channel];
- m_audio_regs[wave_data_reg] = (uint16_t)(m_adpcm[channel].clock((uint8_t)(m_audio_regs[wave_data_reg] & 0x000f)) * 7) ^ 0x8000;
- if (tone_mode != 0 && raw_sample == 0xffff)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "ADPCM stopped after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "ADPCM looping after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- }
- }
- m_sample_count[channel]++;
- }
- else if (get_16bit_bit(channel))
- {
- // 16-bit mode
- if (tone_mode != 0 && raw_sample == 0xffff)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "16-bit PCM stopped after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "16-bit PCM looping after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- }
- }
- m_sample_count[channel]++;
- }
- else
- {
- // 8-bit mode
- if (tone_mode != 0)
- {
- if (m_sample_shift[channel])
- m_audio_regs[wave_data_reg] <<= 8;
- else
- m_audio_regs[wave_data_reg] &= 0xff00;
-
- if (m_audio_regs[wave_data_reg] == 0xff00)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "8-bit PCM stopped after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "8-bit PCM looping after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- }
- }
- }
- m_sample_count[channel]++;
- }
-
- return true;
+ io->porta_in().set(FUNC(spg2xx_device::porta_r));
+ io->portb_in().set(FUNC(spg2xx_device::portb_r));
+ io->portc_in().set(FUNC(spg2xx_device::portc_r));
+ io->porta_out().set(FUNC(spg2xx_device::porta_w));
+ io->portb_out().set(FUNC(spg2xx_device::portb_w));
+ io->portc_out().set(FUNC(spg2xx_device::portc_w));
+ io->adc_in<0>().set(FUNC(spg2xx_device::adc_r<0>));
+ io->adc_in<1>().set(FUNC(spg2xx_device::adc_r<1>));
+ io->eeprom_w().set(FUNC(spg2xx_device::eepromx_w));
+ io->eeprom_r().set(FUNC(spg2xx_device::eepromx_r));
+ io->uart_tx().set(FUNC(spg2xx_device::tx_w));
+ io->chip_select().set(FUNC(spg2xx_device::cs_w));
+ io->pal_read_callback().set(FUNC(spg2xx_device::get_pal_r));
+ io->write_timer_irq_callback().set(FUNC(spg2xx_device::timerirq_w));
+ io->write_uart_adc_irq_callback().set(FUNC(spg2xx_device::uartirq_w));
+ io->write_external_irq_callback().set(FUNC(spg2xx_device::extirq_w));
+ io->write_ffrq_tmr1_irq_callback().set(FUNC(spg2xx_device::ffreq1_w));
+ io->write_ffrq_tmr2_irq_callback().set(FUNC(spg2xx_device::ffreq2_w));
}
-inline void spg2xx_device::loop_channel(const uint32_t channel)
+void spg24x_device::device_add_mconfig(machine_config &config)
{
- m_sample_addr[channel] = get_loop_addr(channel);
- m_sample_shift[channel] = 0;
-}
+ SPG2XX_AUDIO(config, m_spg_audio, DERIVED_CLOCK(1, 1));
+ m_spg_audio->write_irq_callback().set(FUNC(spg24x_device::audioirq_w));
+ m_spg_audio->space_read_callback().set(FUNC(spg24x_device::space_r));
-void spg2xx_device::audio_frame_tick()
-{
- audio_beat_tick();
+ m_spg_audio->add_route(0, *this, 1.0, AUTO_ALLOC_INPUT, 0);
+ m_spg_audio->add_route(1, *this, 1.0, AUTO_ALLOC_INPUT, 1);
- address_space &space = m_cpu->space(AS_PROGRAM);
- bool any_changed = false;
- for (uint32_t channel = 0; channel < 16; channel++)
- {
- const uint16_t mask = (1 << channel);
- if (!(m_audio_regs[AUDIO_CHANNEL_STATUS] & mask))
- {
- continue;
- }
-
- if (m_audio_regs[AUDIO_ENV_RAMP_DOWN] & mask)
- {
- m_rampdown_frame[channel]--;
- if (m_rampdown_frame[channel] == 0)
- {
- LOGMASKED(LOG_RAMPDOWN, "Ticking rampdown for channel %d\n", channel);
- audio_rampdown_tick(channel);
- any_changed = true;
- }
- continue;
- }
-
- if (!(m_audio_regs[AUDIO_CHANNEL_ENV_MODE] & mask))
- {
- m_envclk_frame[channel]--;
- if (m_envclk_frame[channel] == 0)
- {
- LOGMASKED(LOG_ENVELOPES, "Ticking envelope for channel %d\n", channel);
- any_changed = audio_envelope_tick(space, channel) || any_changed;
- m_envclk_frame[channel] = get_envclk_frame_count(channel);
- }
- }
- }
-
- if (any_changed)
- {
- m_stream->update();
- }
+ SPG24X_IO(config, m_spg_io, DERIVED_CLOCK(1, 1), m_cpu, m_screen);
+ configure_spg_io(m_spg_io);
}
-void spg2xx_device::audio_beat_tick()
+void spg28x_device::device_add_mconfig(machine_config &config)
{
- if (m_audio_curr_beat_base_count == 0)
- {
- LOGMASKED(LOG_BEAT, "Beat base count elapsed, reloading with %d\n", m_audio_regs[AUDIO_BEAT_BASE_COUNT]);
- m_audio_curr_beat_base_count = m_audio_regs[AUDIO_BEAT_BASE_COUNT];
-
- uint16_t beat_count = m_audio_regs[AUDIO_BEAT_COUNT] & AUDIO_BEAT_COUNT_MASK;
- if (beat_count == 0)
- {
- if (m_audio_regs[AUDIO_BEAT_COUNT] & AUDIO_BIE_MASK)
- {
- LOGMASKED(LOG_BEAT, "Beat count elapsed, setting Status bit and checking IRQs\n");
- m_audio_regs[AUDIO_BEAT_COUNT] |= AUDIO_BIS_MASK;
- check_irqs(AUDIO_BIS_MASK);
- }
- else
- {
- LOGMASKED(LOG_BEAT, "Beat count elapsed but IRQ not enabled\n");
- }
- }
- else
- {
- beat_count--;
- m_audio_regs[AUDIO_BEAT_COUNT] = (m_audio_regs[AUDIO_BEAT_COUNT] & ~AUDIO_BEAT_COUNT_MASK) | beat_count;
- }
- }
- else
- {
- m_audio_curr_beat_base_count--;
- }
-}
+ SPG2XX_AUDIO(config, m_spg_audio, DERIVED_CLOCK(1, 1));
+ m_spg_audio->write_irq_callback().set(FUNC(spg28x_device::audioirq_w));
+ m_spg_audio->space_read_callback().set(FUNC(spg28x_device::space_r));
-void spg2xx_device::audio_rampdown_tick(const uint32_t channel)
-{
- const uint8_t old_edd = get_edd(channel);
- uint8_t new_edd = old_edd - get_rampdown_offset(channel);
- if (new_edd > old_edd)
- new_edd = 0;
+ m_spg_audio->add_route(0, *this, 1.0, AUTO_ALLOC_INPUT, 0);
+ m_spg_audio->add_route(1, *this, 1.0, AUTO_ALLOC_INPUT, 1);
- if (new_edd)
- {
- LOGMASKED(LOG_RAMPDOWN, "Channel %d preparing for next rampdown step (%02x)\n", channel, new_edd);
- const uint16_t channel_mask = channel << 4;
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_DATA] &= ~AUDIO_EDD_MASK;
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_DATA] |= new_edd & AUDIO_EDD_MASK;
- m_rampdown_frame[channel] = get_rampdown_frame_count(channel);
- }
- else
- {
- LOGMASKED(LOG_RAMPDOWN, "Stopping channel %d due to rampdown\n", channel);
- const uint16_t channel_mask = 1 << channel;
- m_audio_regs[AUDIO_CHANNEL_ENABLE] &= ~channel_mask;
- m_audio_regs[AUDIO_CHANNEL_STATUS] &= ~channel_mask;
- m_audio_regs[AUDIO_CHANNEL_STOP] |= channel_mask;
- m_audio_regs[AUDIO_ENV_RAMP_DOWN] &= ~channel_mask;
- m_audio_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~channel_mask;
- }
-}
-
-const uint32_t spg2xx_device::s_rampdown_frame_counts[8] =
-{
- 13*4, 13*16, 13*64, 13*256, 13*1024, 13*4096, 13*8192, 13*8192
-};
-
-uint32_t spg2xx_device::get_rampdown_frame_count(const uint32_t channel)
-{
- return s_rampdown_frame_counts[get_rampdown_clock(channel)];
-}
-
-const uint32_t spg2xx_device::s_envclk_frame_counts[16] =
-{
- 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 8192, 8192, 8192, 8192
-};
-
-uint32_t spg2xx_device::get_envclk_frame_count(const uint32_t channel)
-{
- return s_envclk_frame_counts[get_envelope_clock(channel)];
-}
-
-uint32_t spg2xx_device::get_envelope_clock(const offs_t channel) const
-{
- if (channel < 4)
- return (m_audio_regs[AUDIO_ENVCLK0] >> (channel << 2)) & 0x000f;
- else if (channel < 8)
- return (m_audio_regs[AUDIO_ENVCLK0_HIGH] >> ((channel - 4) << 2)) & 0x000f;
- else if (channel < 12)
- return (m_audio_regs[AUDIO_ENVCLK1] >> ((channel - 8) << 2)) & 0x000f;
- else
- return (m_audio_regs[AUDIO_ENVCLK1_HIGH] >> ((channel - 12) << 2)) & 0x000f;
-}
-
-bool spg2xx_device::audio_envelope_tick(address_space &space, const uint32_t channel)
-{
- const uint16_t channel_mask = channel << 4;
- uint16_t new_count = get_envelope_count(channel);
- const uint16_t curr_edd = get_edd(channel);
- LOGMASKED(LOG_ENVELOPES, "envelope %d tick, count is %04x, curr edd is %04x\n", channel, new_count, curr_edd);
- bool edd_changed = false;
- if (new_count == 0)
- {
- const uint16_t target = get_envelope_target(channel);
- uint16_t new_edd = curr_edd;
- const uint16_t inc = get_envelope_inc(channel);
-
- if (new_edd != target)
- {
- if (get_envelope_sign_bit(channel))
- {
- new_edd -= inc;
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new EDD-: %04x (%04x), dec %04x\n", channel, new_edd, target, inc);
- if (new_edd > curr_edd)
- new_edd = 0;
- else if (new_edd < target)
- new_edd = target;
-
- if (new_edd == 0)
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d at 0, stopping channel\n", channel);
- stop_channel(channel);
- return true;
- }
- }
- else
- {
- new_edd += inc;
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new EDD+: %04x\n", channel, new_edd);
- if (new_edd >= target)
- new_edd = target;
- }
- }
-
- if (new_edd == target)
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d at target %04x\n", channel, target);
- new_edd = target;
-
- if (get_envelope_repeat_bit(channel))
- {
- const uint16_t repeat_count = get_envelope_repeat_count(channel) - 1;
- LOGMASKED(LOG_ENVELOPES, "Repeating envelope, new repeat count %d\n", repeat_count);
- if (repeat_count == 0)
- {
- m_audio_regs[channel_mask | AUDIO_ENVELOPE0] = space.read_word(m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE1] = space.read_word(m_envelope_addr[channel] + 1);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_LOOP_CTRL] = space.read_word(m_envelope_addr[channel] + 2);
- m_envelope_addr[channel] = get_envelope_addr(channel) + get_envelope_eaoffset(channel);
- LOGMASKED(LOG_ENVELOPES, "Envelope data after repeat: %04x %04x %04x (%08x)\n", m_audio_regs[channel_mask | AUDIO_ENVELOPE0], m_audio_regs[channel_mask | AUDIO_ENVELOPE1], m_audio_regs[channel_mask | AUDIO_ENVELOPE_LOOP_CTRL], m_envelope_addr[channel]);
- }
- else
- {
- set_envelope_repeat_count(channel, repeat_count);
- }
- }
- else
- {
- LOGMASKED(LOG_ENVELOPES, "Fetching envelope for channel %d from %08x\n", channel, m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE0] = space.read_word(m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE1] = space.read_word(m_envelope_addr[channel] + 1);
- LOGMASKED(LOG_ENVELOPES, "Fetched envelopes %04x %04x\n", m_audio_regs[channel_mask | AUDIO_ENVELOPE0], m_audio_regs[channel_mask | AUDIO_ENVELOPE1]);
- m_envelope_addr[channel] += 2;
- }
- new_count = get_envelope_load(channel);
- set_envelope_count(channel, new_count);
- }
- else
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d not yet at target %04x (%04x)\n", channel, target, new_edd);
- new_count = get_envelope_load(channel);
- set_envelope_count(channel, new_count);
- }
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new count %04x\n", channel, new_count);
-
- set_edd(channel, new_edd);
- edd_changed = true;
- LOGMASKED(LOG_ENVELOPES, "Setting channel %d edd to %04x, register is %04x\n", channel, new_edd, m_audio_regs[(channel << 4) | AUDIO_ENVELOPE_DATA]);
- }
- else
- {
- new_count--;
- set_envelope_count(channel, new_count);
- }
- LOGMASKED(LOG_ENVELOPES, "envelope %d post-tick, count is now %04x, register is %04x\n", channel, new_count, m_audio_regs[(channel << 4) | AUDIO_ENVELOPE_DATA]);
- return edd_changed;
+ SPG28X_IO(config, m_spg_io, DERIVED_CLOCK(1, 1), m_cpu, m_screen);
+ configure_spg_io(m_spg_io);
}