diff options
Diffstat (limited to 'src/devices/bus/isa/trident.cpp')
-rw-r--r-- | src/devices/bus/isa/trident.cpp | 1633 |
1 files changed, 0 insertions, 1633 deletions
diff --git a/src/devices/bus/isa/trident.cpp b/src/devices/bus/isa/trident.cpp deleted file mode 100644 index a3cd123305b..00000000000 --- a/src/devices/bus/isa/trident.cpp +++ /dev/null @@ -1,1633 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Barry Rodewald -/* - * trident.c - * - * Implementation of Trident VGA GUI accelerators - * - * - */ - -#include "emu.h" -#include "trident.h" - -#include "debugger.h" -#include "screen.h" - - -DEFINE_DEVICE_TYPE(TRIDENT_VGA, tgui9860_device, "trident_vga", "Trident TGUI9860") -DEFINE_DEVICE_TYPE(TVGA9000_VGA, tvga9000_device, "tvga9000_vga", "Trident TVGA9000") - -#define CRTC_PORT_ADDR ((vga.miscellaneous_output&1)?0x3d0:0x3b0) - -#define LOG (1) -#define LOG_ACCEL (1) - -trident_vga_device::trident_vga_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) - : svga_device(mconfig, type, tag, owner, clock) -{ -} - -tgui9860_device::tgui9860_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : trident_vga_device(mconfig, TRIDENT_VGA, tag, owner, clock) -{ - m_version = 0xd3; // 0xd3 identifies at TGUI9660XGi (set to 0xe3 to identify at TGUI9440AGi) -} - -tvga9000_device::tvga9000_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : trident_vga_device(mconfig, TVGA9000_VGA, tag, owner, clock) -{ - m_version = 0x43; -} - -uint8_t trident_vga_device::READPIXEL8(int16_t x, int16_t y) -{ - return (vga.memory[((y & 0xfff)*offset() + (x & 0xfff)) % vga.svga_intf.vram_size]); -} - -uint16_t trident_vga_device::READPIXEL15(int16_t x, int16_t y) -{ - return (vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*2) % vga.svga_intf.vram_size] | - (vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*2)+1) % vga.svga_intf.vram_size] << 8)); -} - -uint16_t trident_vga_device::READPIXEL16(int16_t x, int16_t y) -{ - return (vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*2) % vga.svga_intf.vram_size] | - (vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*2)+1) % vga.svga_intf.vram_size] << 8)); -} - -uint32_t trident_vga_device::READPIXEL32(int16_t x, int16_t y) -{ - return (vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*4) % vga.svga_intf.vram_size] | - (vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+1) % vga.svga_intf.vram_size] << 8) | - (vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+2) % vga.svga_intf.vram_size] << 16) | - (vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+3) % vga.svga_intf.vram_size] << 24)); -} - -void trident_vga_device::WRITEPIXEL8(int16_t x, int16_t y, uint8_t data) -{ - if((x & 0xfff)<tri.accel_dest_x_clip && (y & 0xfff)<tri.accel_dest_y_clip) - { - data = handle_rop(data,READPIXEL8(x,y)) & 0xff; - vga.memory[((y & 0xfff)*offset() + (x & 0xfff)) % vga.svga_intf.vram_size] = data; - } -} - -void trident_vga_device::WRITEPIXEL15(int16_t x, int16_t y, uint16_t data) -{ - if((x & 0xfff)<tri.accel_dest_x_clip && (y & 0xfff)<tri.accel_dest_y_clip) - { - data = handle_rop(data,READPIXEL8(x,y)) & 0x7fff; - vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*2) % vga.svga_intf.vram_size] = data & 0x00ff; - vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*2)+1) % vga.svga_intf.vram_size] = (data & 0x7f00) >> 8; - } -} - -void trident_vga_device::WRITEPIXEL16(int16_t x, int16_t y, uint16_t data) -{ - if((x & 0xfff)<tri.accel_dest_x_clip && (y & 0xfff)<tri.accel_dest_y_clip) - { - data = handle_rop(data,READPIXEL8(x,y)) & 0xffff; - vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*2) % vga.svga_intf.vram_size] = data & 0x00ff; - vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*2)+1) % vga.svga_intf.vram_size] = (data & 0xff00) >> 8; - } -} - -void trident_vga_device::WRITEPIXEL32(int16_t x, int16_t y, uint32_t data) -{ - if((x & 0xfff)<tri.accel_dest_x_clip && (y & 0xfff)<tri.accel_dest_y_clip) - { - data = handle_rop(data,READPIXEL8(x,y)); - vga.memory[((y & 0xfff)*offset() + (x & 0xfff)*4) % vga.svga_intf.vram_size] = data & 0x000000ff; - vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+1) % vga.svga_intf.vram_size] = (data & 0x0000ff00) >> 8; - vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+2) % vga.svga_intf.vram_size] = (data & 0x00ff0000) >> 16; - vga.memory[((y & 0xfff)*offset() + ((x & 0xfff)*4)+3) % vga.svga_intf.vram_size] = (data & 0xff000000) >> 24; - } -} - -uint32_t trident_vga_device::handle_rop(uint32_t src, uint32_t dst) -{ - switch(tri.accel_fmix) // TODO: better understand this register - { - case 0xf0: // PAT - case 0xcc: // SRC - break; // pass data through - case 0x00: // 0 - src = 0; - break; - case 0xff: // 1 - src = 0xffffffff; - break; - case 0x66: // XOR - case 0x5a: // XOR PAT - src = dst ^ src; - break; - case 0xb8: // PAT xor (SRC and (DST xor PAT)) (correct?) - src = src & (dst ^ src); - break; - } - return src; -} - -uint32_t trident_vga_device::READPIXEL(int16_t x,int16_t y) -{ - if(svga.rgb8_en) - return READPIXEL8(x,y) & 0xff; - if(svga.rgb15_en) - return READPIXEL15(x,y) & 0x7fff; - if(svga.rgb16_en) - return READPIXEL16(x,y) & 0xffff; - if(svga.rgb32_en) - return READPIXEL32(x,y); - return 0; // should never reach here -} - -void trident_vga_device::WRITEPIXEL(int16_t x,int16_t y, uint32_t data) -{ - if(svga.rgb8_en) - WRITEPIXEL8(x,y,(((data >> 8) & 0xff) | (data & 0xff))); // XFree86 3.3 sets bits 0-7 to 0 when using mono patterns, does it OR each byte? - if(svga.rgb15_en) - WRITEPIXEL15(x,y,data & 0x7fff); - if(svga.rgb16_en) - WRITEPIXEL16(x,y,data & 0xffff); - if(svga.rgb32_en) - WRITEPIXEL32(x,y,data); -} - - -void trident_vga_device::device_start() -{ - zero(); - - int i; - for (i = 0; i < 0x100; i++) - set_pen_color(i, 0, 0, 0); - - // Avoid an infinite loop when displaying. 0 is not possible anyway. - vga.crtc.maximum_scan_line = 1; - - - // copy over interfaces - vga.read_dipswitch = read8_delegate(); //read_dipswitch; - vga.svga_intf.vram_size = 0x200000; - - vga.memory.resize(vga.svga_intf.vram_size); - memset(&vga.memory[0], 0, vga.svga_intf.vram_size); - save_item(NAME(vga.memory)); - save_pointer(vga.crtc.data,"CRTC Registers",0x100); - save_pointer(vga.sequencer.data,"Sequencer Registers",0x100); - save_pointer(vga.attribute.data,"Attribute Registers", 0x15); - save_pointer(tri.accel_pattern,"Pattern Data", 0x80); - save_pointer(tri.lutdac_reg,"LUTDAC registers", 0x100); - - m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(vga_device::vblank_timer_cb),this)); - vga.svga_intf.seq_regcount = 0x0f; - vga.svga_intf.crtc_regcount = 0x60; - memset(&tri, 0, sizeof(tri)); -} - -void trident_vga_device::device_reset() -{ - svga_device::device_reset(); - svga.id = m_version; - tri.revision = 0x01; // revision identifies as TGUI9680 - tri.new_mode = false; // start up in old mode - tri.dac_active = false; - tri.linear_active = false; - tri.mmio_active = false; - tri.sr0f = 0x6f; - tri.sr0c = 0x70; - tri.cr2a = 0x03; // set ISA interface? - tri.mem_clock = 0x2c6; // 50MHz default - tri.vid_clock = 0; - tri.port_3c3 = true; - tri.accel_busy = false; - tri.accel_memwrite_active = false; - // Windows 3.1 TGUI9440AGi drivers do not set the pointer colour registers? - tri.cursor_bg = 0x00000000; - tri.cursor_fg = 0xffffffff; - tri.pixel_depth = 0x10; //disable 8bpp mode by default -} - -uint32_t trident_vga_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - uint8_t cur_mode; - - svga_device::screen_update(screen,bitmap,cliprect); - cur_mode = pc_vga_choosevideomode(); - - // draw hardware graphics cursor - if(tri.cursor_ctrl & 0x80) // if cursor is enabled - { - uint32_t src; - uint32_t* dst; - uint8_t val; - int x,y; - uint16_t cx = tri.cursor_x & 0x0fff; - uint16_t cy = tri.cursor_y & 0x0fff; - uint32_t bg_col; - uint32_t fg_col; - uint8_t cursor_size = (tri.cursor_ctrl & 0x01) ? 64 : 32; - - if(cur_mode == SCREEN_OFF || cur_mode == TEXT_MODE || cur_mode == MONO_MODE || cur_mode == CGA_MODE || cur_mode == EGA_MODE) - return 0; // cursor only works in VGA or SVGA modes - - src = tri.cursor_loc * 1024; // start address is in units of 1024 bytes - - if(cur_mode == RGB16_MODE) - { - bg_col = tri.cursor_bg; - fg_col = tri.cursor_fg; - } - else /* TODO: other modes */ - { - bg_col = pen(tri.cursor_bg & 0xff); - fg_col = pen(tri.cursor_fg & 0xff); - } - - for(y=0;y<cursor_size;y++) - { - uint8_t bitcount = 31; - dst = &bitmap.pix32(cy + y, cx); - for(x=0;x<cursor_size;x++) - { - uint32_t bitb = (vga.memory[(src+3) % vga.svga_intf.vram_size] - | ((vga.memory[(src+2) % vga.svga_intf.vram_size]) << 8) - | ((vga.memory[(src+1) % vga.svga_intf.vram_size]) << 16) - | ((vga.memory[(src+0) % vga.svga_intf.vram_size]) << 24)); - uint32_t bita = (vga.memory[(src+7) % vga.svga_intf.vram_size] - | ((vga.memory[(src+6) % vga.svga_intf.vram_size]) << 8) - | ((vga.memory[(src+5) % vga.svga_intf.vram_size]) << 16) - | ((vga.memory[(src+4) % vga.svga_intf.vram_size]) << 24)); - val = (BIT(bita << 1,bitcount+1) << 1 | BIT(bitb,bitcount)); - if(tri.cursor_ctrl & 0x40) - { // X11 mode - switch(val) - { - case 0x00: - // no change - break; - case 0x01: - dst[x] = bg_col; - break; - case 0x02: - // no change - break; - case 0x03: - dst[x] = fg_col; - break; - } - } - else - { // Windows mode - switch(val) - { - case 0x00: - dst[x] = bg_col; - break; - case 0x01: - // no change - break; - case 0x02: // screen data - dst[x] = fg_col; - break; - case 0x03: // inverted screen data - dst[x] = ~(dst[x]); - break; - } - } - bitcount--; - if(x % 32 == 31) - { - src+=8; - bitcount=31; - } - } - } - } - - return 0; -} - -uint16_t trident_vga_device::offset() -{ - uint16_t off = svga_device::offset(); - - if (svga.rgb8_en || svga.rgb15_en || svga.rgb16_en || svga.rgb32_en) - return vga.crtc.offset << 3; // don't know if this is right, but Eggs Playing Chicken switches off doubleword mode, but expects the same offset length - else - return off; -} - -int trident_vga_device::calculate_clock() -{ - // Bits 0-6: M - // Bits 7-11: N - // Bit 12: K - // Later formula extends each variable by one extra bit (Providia 9685 and later) - double freq; - uint8_t m,n,k; - - m = tri.vid_clock & 0x007f; - n = (tri.vid_clock & 0x0f80) >> 7; - k = (tri.vid_clock & 0x1000) >> 12; - freq = ((double)(m+8) / (double)((n+2)*(pow(2.0,k)))) * 14.31818; // there is a 14.31818MHz clock on the board - - return freq * 1000000; -} - -void trident_vga_device::trident_define_video_mode() -{ - int divisor = 1; - int xtal; - - /* // clock select for TGUI9440CXi and earlier - switch(tri.clock) - { - case 0: - default: xtal = 25174800; break; - case 1: xtal = 28636363; break; - case 2: xtal = 44900000; break; - case 3: xtal = 36000000; break; - case 4: xtal = 57272000; break; - case 5: xtal = 65000000; break; - case 6: xtal = 50350000; break; - case 7: xtal = 40000000; break; - case 8: xtal = 88000000; break; - case 9: xtal = 98000000; break; - case 10: xtal = 118800000; break; - case 11: xtal = 108000000; break; - case 12: xtal = 72000000; break; - case 13: xtal = 77000000; break; - case 14: xtal = 80000000; break; - case 15: xtal = 75000000; break; - } - - switch((tri.sr0d_new & 0x06) >> 1) - { - case 0: - default: break; // no division - case 1: xtal = xtal / 2; break; - case 2: xtal = xtal / 4; break; - case 3: xtal = xtal / 1.5; break; - }*/ - - - // TGUI9440AGi/9660/9680/9682 programmable clock - switch((vga.miscellaneous_output & 0x0c) >> 2) - { - case 0: - default: xtal = 25174800; break; - case 1: xtal = 28636363; break; - case 2: xtal = calculate_clock(); break; - } - - if(tri.gc0f & 0x08) // 16 pixels per character clock - xtal = xtal / 2; - - if(tri.port_3db & 0x20) - xtal = xtal / 2; // correct? - - svga.rgb8_en = svga.rgb15_en = svga.rgb16_en = svga.rgb32_en = 0; - switch((tri.pixel_depth & 0x0c) >> 2) - { - case 0: - default: if(!(tri.pixel_depth & 0x10) || (tri.cr1e & 0x80)) svga.rgb8_en = 1; break; - case 1: if((tri.dac & 0xf0) == 0x30) svga.rgb16_en = 1; else svga.rgb15_en = 1; break; - case 2: svga.rgb32_en = 1; break; - } - - if((tri.cr1e & 0x80) && (svga.id == 0x43)) - divisor = 2; - - recompute_params_clock(divisor, xtal); -} - -uint8_t trident_vga_device::trident_seq_reg_read(uint8_t index) -{ - uint8_t res; - - res = 0xff; - - if(index <= 0x04) - res = vga.sequencer.data[index]; - else - { - switch(index) - { - case 0x09: - res = tri.revision; - break; - case 0x0b: - res = svga.id; - tri.new_mode = true; - break; - case 0x0c: // Power Up Mode register 1 - res = tri.sr0c & 0xef; - if(tri.port_3c3) - res |= 0x10; - break; - case 0x0d: // Mode Control 2 - //res = svga.rgb15_en; - if(tri.new_mode) - res = tri.sr0d_new; - else - res = tri.sr0d_old; - break; - case 0x0e: // Mode Control 1 - if(tri.new_mode) - res = tri.sr0e_new; - else - res = tri.sr0e_old; - break; - case 0x0f: // Power Up Mode 2 - res = tri.sr0f; - break; - default: - res = vga.sequencer.data[index]; - if(!LOG) logerror("Trident: Sequencer index %02x read\n",index); - } - } - if(LOG) logerror("Trident SR%02X: read %02x\n",index,res); - return res; -} - -void trident_vga_device::trident_seq_reg_write(uint8_t index, uint8_t data) -{ - vga.sequencer.data[vga.sequencer.index] = data; - if(index <= 0x04) - { - seq_reg_write(vga.sequencer.index,data); - recompute_params(); - } - else - { - switch(index) - { - case 0x0b: - tri.new_mode = false; - break; - case 0x0c: // Power Up Mode register 1 - if(data & 0x10) - tri.port_3c3 = true; // 'post port at 0x3c3' - else - tri.port_3c3 = false; // 'post port at 0x46e8' - tri.sr0c = data; - break; - case 0x0d: // Mode Control 2 - if(tri.new_mode) - { - tri.sr0d_new = data; - tri.clock = ((vga.miscellaneous_output & 0x0c) >> 2) | ((data & 0x01) << 2) | ((data & 0x40) >> 3); - trident_define_video_mode(); - } - else - tri.sr0d_old = data; - break; - case 0x0e: // Mode Control 1 - if(tri.new_mode) - { - tri.sr0e_new = data ^ 0x02; - svga.bank_w = (data & 0x3f) ^ 0x02; // bit 1 is inverted, used for card detection, it is not XORed on reading - if(!(tri.gc0f & 0x01)) - svga.bank_r = (data & 0x3f) ^ 0x02; - // TODO: handle planar modes, where bits 0 and 2 only are used - } - else - { - tri.sr0e_old = data; - svga.bank_w = data & 0x0e; - if(!(tri.gc0f & 0x01)) - svga.bank_r = data & 0x0e; - } - break; - case 0x0f: // Power Up Mode 2 - tri.sr0f = data; - break; - default: - if(!LOG) logerror("Trident: Sequencer index %02x read\n",index); - } - } - if(LOG) logerror("Trident SR%02X: %s mode write %02x\n",index,tri.new_mode ? "new" : "old",data); -} - -uint8_t trident_vga_device::trident_crtc_reg_read(uint8_t index) -{ - uint8_t res = 0; - - if(index <= 0x18) - res = crtc_reg_read(index); - else - { - switch(index) - { - case 0x1e: - res = tri.cr1e; - break; - case 0x1f: - res = tri.cr1f; - break; - case 0x20: - res = tri.cr20; - break; - case 0x21: - res = tri.cr21; - break; - case 0x24: - if(vga.attribute.state != 0) - res |= 0x80; - break; - case 0x26: - res = vga.attribute.index; - break; - case 0x27: - res = (vga.crtc.start_addr & 0x60000) >> 17; - break; - case 0x29: - res = tri.cr29; - break; - case 0x2a: - res = tri.cr2a; - break; - case 0x38: - res = tri.pixel_depth; - break; - case 0x39: - res = tri.cr39; - break; - case 0x40: - res = (tri.cursor_x & 0x00ff); - break; - case 0x41: - res = (tri.cursor_x & 0xff00) >> 8; - break; - case 0x42: - res = (tri.cursor_y & 0x00ff); - break; - case 0x43: - res = (tri.cursor_y & 0xff00) >> 8; - break; - case 0x44: - res = (tri.cursor_loc & 0x00ff); - break; - case 0x45: - res = (tri.cursor_loc & 0xff00) >> 8; - break; - case 0x46: - res = tri.cursor_x_off; - break; - case 0x47: - res = tri.cursor_y_off; - break; - case 0x48: - res = (tri.cursor_fg & 0x000000ff); - break; - case 0x49: - res = (tri.cursor_fg & 0x0000ff00) >> 8; - break; - case 0x4a: - res = (tri.cursor_fg & 0x00ff0000) >> 16; - break; - case 0x4b: - res = (tri.cursor_fg & 0xff000000) >> 24; - break; - case 0x4c: - res = (tri.cursor_bg & 0x000000ff); - break; - case 0x4d: - res = (tri.cursor_bg & 0x0000ff00) >> 8; - break; - case 0x4e: - res = (tri.cursor_bg & 0x00ff0000) >> 16; - break; - case 0x4f: - res = (tri.cursor_bg & 0xff000000) >> 24; - break; - case 0x50: - res = tri.cursor_ctrl; - break; - default: - res = vga.crtc.data[index]; - if(!LOG) logerror("Trident: CRTC index %02x read\n",index); - break; - } - } - if(LOG) logerror("Trident CR%02X: read %02x\n",index,res); - return res; -} -void trident_vga_device::trident_crtc_reg_write(uint8_t index, uint8_t data) -{ - if(index <= 0x18) - { - crtc_reg_write(index,data); - trident_define_video_mode(); - } - else - { - switch(index) - { - case 0x1e: // Module Testing Register - tri.cr1e = data; - vga.crtc.start_addr = (vga.crtc.start_addr & 0xfffeffff) | ((data & 0x20)<<11); - break; - case 0x1f: - tri.cr1f = data; // "Software Programming Register" written to by the BIOS - break; - case 0x20: // FIFO Control (old MMIO enable? no documentation of this register) - tri.cr20 = data; - break; - case 0x21: // Linear aperture - tri.cr21 = data; - tri.linear_address = ((data & 0xc0)<<18) | ((data & 0x0f)<<20); - tri.linear_active = data & 0x20; - if(tri.linear_active) - popmessage("Trident: Linear Aperture active - %08x, %s",tri.linear_address,(tri.cr21 & 0x10) ? "2MB" : "1MB" ); - break; - case 0x27: - vga.crtc.start_addr = (vga.crtc.start_addr & 0xfff9ffff) | ((data & 0x03)<<17); - break; - case 0x29: - tri.cr29 = data; - vga.crtc.offset = (vga.crtc.offset & 0xfeff) | ((data & 0x10)<<4); - break; - case 0x2a: - tri.cr2a = data; - break; - case 0x38: - // bit 0: 16 bit bus - // bits 2-3: pixel depth (1=15/16bit, 2=24/32bit, 0=anything else) - // bit 5: packed mode - tri.pixel_depth = data; - trident_define_video_mode(); - break; - case 0x39: - tri.cr39 = data; - tri.mmio_active = data & 0x01; - if(tri.mmio_active) - popmessage("Trident: MMIO activated"); - break; - case 0x40: - tri.cursor_x = (tri.cursor_x & 0xff00) | data; - break; - case 0x41: - tri.cursor_x = (tri.cursor_x & 0x00ff) | (data << 8); - break; - case 0x42: - tri.cursor_y = (tri.cursor_y & 0xff00) | data; - break; - case 0x43: - tri.cursor_y = (tri.cursor_y & 0x00ff) | (data << 8); - break; - case 0x44: - tri.cursor_loc = (tri.cursor_loc & 0xff00) | data; - break; - case 0x45: - tri.cursor_loc = (tri.cursor_loc & 0x00ff) | (data << 8); - break; - case 0x46: - tri.cursor_x_off = data; - break; - case 0x47: - tri.cursor_y_off = data; - break; - case 0x48: - tri.cursor_fg = (tri.cursor_fg & 0xffffff00) | data; - break; - case 0x49: - tri.cursor_fg = (tri.cursor_fg & 0xffff00ff) | (data << 8); - break; - case 0x4a: - tri.cursor_fg = (tri.cursor_fg & 0xff00ffff) | (data << 16); - break; - case 0x4b: - tri.cursor_fg = (tri.cursor_fg & 0x00ffffff) | (data << 24); - break; - case 0x4c: - tri.cursor_bg = (tri.cursor_bg & 0xffffff00) | data; - break; - case 0x4d: - tri.cursor_bg = (tri.cursor_bg & 0xffff00ff) | (data << 8); - break; - case 0x4e: - tri.cursor_bg = (tri.cursor_bg & 0xff00ffff) | (data << 16); - break; - case 0x4f: - tri.cursor_bg = (tri.cursor_bg & 0x00ffffff) | (data << 24); - break; - case 0x50: - tri.cursor_ctrl = data; - break; - default: - if(!LOG) logerror("Trident: 3D4 index %02x write %02x\n",index,data); - break; - } - } - if(LOG) logerror("Trident CR%02X: write %02x\n",index,data); -} - -uint8_t trident_vga_device::trident_gc_reg_read(uint8_t index) -{ - uint8_t res; - - if(index <= 0x0d) - res = gc_reg_read(index); - else - { - switch(index) - { - case 0x0e: - res = tri.gc0e; - break; - case 0x0f: - res = tri.gc0f; - break; - case 0x2f: - res = tri.gc2f; - break; - default: - res = 0xff; - if(!LOG) logerror("Trident: Sequencer index %02x read\n",index); - break; - } - } - if(LOG) logerror("Trident GC%02X: read %02x\n",index,res); - return res; -} - -void trident_vga_device::trident_gc_reg_write(uint8_t index, uint8_t data) -{ - if(index <= 0x0d) - gc_reg_write(index,data); - else - { - if(LOG) logerror("Trident GC%02X: write %02x\n",index,data); - switch(index) - { - case 0x0e: // New Source Address Register (bit 1 is inverted here, also) - tri.gc0e = data ^ 0x02; - if(!(tri.gc0f & 0x04)) // if bank regs at 0x3d8/9 are not enabled - { - if(tri.gc0f & 0x01) // if bank regs are separated - svga.bank_r = (data & 0x1f) ^ 0x02; - } - break; - case 0x0f: - tri.gc0f = data; - trident_define_video_mode(); - break; - case 0x2f: // XFree86 refers to this register as "MiscIntContReg", setting bit 2, but gives no indication as to what it does - tri.gc2f = data; - break; - default: - if(!LOG) logerror("Trident: Unimplemented GC register %02x write %02x\n",index,data); - break; - } - } - if(LOG) logerror("Trident GC%02X: write %02x\n",index,data); -} - -READ8_MEMBER(trident_vga_device::port_03c0_r) -{ - uint8_t res; - - switch(offset) - { - case 0x05: - res = trident_seq_reg_read(vga.sequencer.index); - break; - case 0x06: - tri.dac_count++; - if(tri.dac_count > 3) - tri.dac_active = true; - if(tri.dac_active) - res = tri.dac; - else - res = vga_device::port_03c0_r(space,offset,mem_mask); - break; - case 0x07: - case 0x08: - case 0x09: - tri.dac_active = false; - tri.dac_count = 0; - res = vga_device::port_03c0_r(space,offset,mem_mask); - break; - case 0x0f: - res = trident_gc_reg_read(vga.gc.index); - break; - default: - res = vga_device::port_03c0_r(space,offset,mem_mask); - break; - } - - return res; -} - -WRITE8_MEMBER(trident_vga_device::port_03c0_w) -{ - switch(offset) - { - case 0x05: - trident_seq_reg_write(vga.sequencer.index,data); - break; - case 0x06: - if(tri.dac_active) - { - tri.dac = data; // DAC command register - tri.dac_active = false; - tri.dac_count = 0; - trident_define_video_mode(); - } - else - vga_device::port_03c0_w(space,offset,data,mem_mask); - break; - case 0x07: - case 0x08: - case 0x09: - tri.dac_active = false; - tri.dac_count = 0; - vga_device::port_03c0_w(space,offset,data,mem_mask); - break; - case 0x0f: - trident_gc_reg_write(vga.gc.index,data); - break; - default: - vga_device::port_03c0_w(space,offset,data,mem_mask); - break; - } -} - - -READ8_MEMBER(trident_vga_device::port_03d0_r) -{ - uint8_t res = 0xff; - - if (CRTC_PORT_ADDR == 0x3d0) - { - switch(offset) - { - case 5: - res = trident_crtc_reg_read(vga.crtc.index); - break; - case 8: - if(tri.gc0f & 0x04) // if enabled - { - res = svga.bank_w & 0x3f; - } - else - res = 0xff; - break; - case 9: - if(tri.gc0f & 0x04) // if enabled - if(tri.gc0f & 0x01) // and if bank regs are separated - res = svga.bank_r & 0x3f; - else - res = 0xff; - else - res = 0xff; - break; - case 11: - res = tri.port_3db; - break; - default: - res = vga_device::port_03d0_r(space,offset,mem_mask); - break; - } - } - - return res; -} - -WRITE8_MEMBER(trident_vga_device::port_03d0_w) -{ - if (CRTC_PORT_ADDR == 0x3d0) - { - switch(offset) - { - case 5: - vga.crtc.data[vga.crtc.index] = data; - trident_crtc_reg_write(vga.crtc.index,data); - break; - case 8: - if(tri.gc0f & 0x04) // if enabled - { - svga.bank_w = data & 0x3f; - if(LOG) logerror("Trident: Write Bank set to %02x\n",data); - if(!(tri.gc0f & 0x01)) // if bank regs are not separated - { - svga.bank_r = data & 0x3f; // then this is also the read bank register - if(LOG) logerror("Trident: Read Bank set to %02x\n",data); - } - } - break; - case 9: - if(tri.gc0f & 0x04) // if enabled - { - if(tri.gc0f & 0x01) // and if bank regs are separated - { - svga.bank_r = data & 0x3f; - if(LOG) logerror("Trident: Read Bank set to %02x\n",data); - } - } - break; - case 11: - tri.port_3db = data; // no info on this port? Bit 5 appears to be a clock divider... - break; - default: - vga_device::port_03d0_w(space,offset,data,mem_mask); - break; - } - } -} - -READ8_MEMBER(trident_vga_device::port_43c6_r) -{ - uint8_t res = 0xff; - switch(offset) - { - case 2: - res = tri.mem_clock & 0xff; - break; - case 3: - res = tri.mem_clock >> 8; - break; - case 4: - res = tri.vid_clock & 0xff; - break; - case 5: - res = tri.vid_clock >> 8; - break; - } - return res; -} - -WRITE8_MEMBER(trident_vga_device::port_43c6_w) -{ - switch(offset) - { - case 2: - if(!(tri.sr0e_new & 0x02) && (tri.sr0e_new & 0x80)) - { - tri.mem_clock = (tri.mem_clock & 0xff00) | (data); - if(LOG) logerror("Trident: Memory clock write %04x\n",tri.mem_clock); - } - break; - case 3: - if(!(tri.sr0e_new & 0x02) && (tri.sr0e_new & 0x80)) - { - tri.mem_clock = (tri.mem_clock & 0x00ff) | (data << 8); - if(LOG) logerror("Trident: Memory clock write %04x\n",tri.mem_clock); - } - break; - case 4: - if(!(tri.sr0e_new & 0x02) && (tri.sr0e_new & 0x80)) - { - tri.vid_clock = (tri.vid_clock & 0xff00) | (data); - if(LOG) logerror("Trident: Video clock write %04x\n",tri.vid_clock); - } - break; - case 5: - if(!(tri.sr0e_new & 0x02) && (tri.sr0e_new & 0x80)) - { - tri.vid_clock = (tri.vid_clock & 0x00ff) | (data << 8); - if(LOG) logerror("Trident: Video clock write %04x\n",tri.vid_clock); - } - break; - } -} - -// Trident refers to these registers as a LUTDAC -// Not much else is known. XFree86 uses register 4 for something related to DPMS -READ8_MEMBER(trident_vga_device::port_83c6_r) -{ - uint8_t res = 0xff; - switch(offset) - { - case 2: - res = tri.lutdac_reg[tri.lutdac_index]; - if(LOG) logerror("Trident: LUTDAC reg read %02x\n",res); - break; - case 4: - res = tri.lutdac_index; - if(LOG) logerror("Trident: LUTDAC index read %02x\n",res); - break; - } - return res; -} - -WRITE8_MEMBER(trident_vga_device::port_83c6_w) -{ - switch(offset) - { - case 2: - if(LOG) logerror("Trident: LUTDAC reg write %02x\n",data); - tri.lutdac_reg[tri.lutdac_index] = data; - break; - case 4: - if(LOG) logerror("Trident: LUTDAC index write %02x\n",data); - tri.lutdac_index = data; - break; - } -} - -READ8_MEMBER(trident_vga_device::vram_r) -{ - if (tri.linear_active) - return vga.memory[offset % vga.svga_intf.vram_size]; - else - return 0xff; -} - -WRITE8_MEMBER(trident_vga_device::vram_w) -{ - if (tri.linear_active) - { - if(tri.accel_memwrite_active) - { - tri.accel_transfer = (tri.accel_transfer & (~(0x000000ff << (24-(8*(offset % 4)))))) | (data << (24-(8 * (offset % 4)))); - if(offset % 4 == 3) - accel_data_write(tri.accel_transfer); - return; - } - vga.memory[offset % vga.svga_intf.vram_size] = data; - } -} - -READ8_MEMBER(trident_vga_device::mem_r ) -{ - if((tri.cr20 & 0x10) && (offset >= 0x1ff00)) // correct for old MMIO? - { - return old_mmio_r(space,offset-0x1ff00); - } - - if (svga.rgb8_en || svga.rgb15_en || svga.rgb16_en || svga.rgb32_en) - { - int data; - - if(tri.new_mode) // 64k from 0xA0000-0xAFFFF - { - offset &= 0xffff; - data=vga.memory[(offset + (svga.bank_r*0x10000)) % vga.svga_intf.vram_size]; - } - else // 128k from 0xA0000-0xBFFFF - { - data=vga.memory[(offset + (svga.bank_r*0x10000)) % vga.svga_intf.vram_size]; - } - return data; - } - - return vga_device::mem_r(space,offset,mem_mask); -} - -WRITE8_MEMBER(trident_vga_device::mem_w) -{ - if((tri.cr20 & 0x10) && (offset >= 0x1ff00)) // correct for old MMIO? - { - old_mmio_w(space,offset-0x1ff00,data); - return; - } - - if(tri.accel_memwrite_active) - { - tri.accel_transfer = (tri.accel_transfer & (~(0x000000ff << (24-(8*(offset % 4)))))) | (data << (24-(8 * (offset % 4)))); - if(offset % 4 == 3) - accel_data_write(tri.accel_transfer); - return; - } - - if (svga.rgb8_en || svga.rgb15_en || svga.rgb16_en || svga.rgb32_en) - { - if(tri.new_mode) // 64k from 0xA0000-0xAFFFF - { - offset &= 0xffff; - vga.memory[(offset + (svga.bank_w*0x10000)) % vga.svga_intf.vram_size] = data; - } - else // 128k from 0xA0000-0xBFFFF - { - vga.memory[(offset + (svga.bank_w*0x10000)) % vga.svga_intf.vram_size] = data; - } - return; - } - - vga_device::mem_w(space,offset,data,mem_mask); -} - -// Old style MMIO (maps to 0xbff00) -void trident_vga_device::old_mmio_w(address_space& space, uint32_t offset, uint8_t data) -{ - if(offset >= 0x20) - accel_w(space,offset-0x20,data); -} - -uint8_t trident_vga_device::old_mmio_r(address_space& space, uint32_t offset) -{ - if(offset == 0x20) - { - if(tri.accel_busy) - return 0x20; - } - if(offset > 0x20) - return accel_r(space,offset-0x20); - else - return 0x00; -} - - -// 2D Acceleration functions (very WIP) - -// From XFree86 source: -/* -Graphics Engine for 9440/9660/9680 - -#define GER_STATUS 0x2120 -#define GE_BUSY 0x80 -#define GER_OPERMODE 0x2122 Byte for 9440, Word for 96xx -#define DST_ENABLE 0x200 // Destination Transparency -#define GER_COMMAND 0x2124 -#define GE_NOP 0x00 // No Operation -#define GE_BLT 0x01 // BitBLT ROP3 only -#define GE_BLT_ROP4 0x02 // BitBLT ROP4 (96xx only) -#define GE_SCANLINE 0x03 // Scan Line -#define GE_BRESLINE 0x04 // Bresenham Line -#define GE_SHVECTOR 0x05 // Short Vector -#define GE_FASTLINE 0x06 // Fast Line (96xx only) -#define GE_TRAPEZ 0x07 // Trapezoidal fill (96xx only) -#define GE_ELLIPSE 0x08 // Ellipse (96xx only) (RES) -#define GE_ELLIP_FILL 0x09 // Ellipse Fill (96xx only) (RES) -#define GER_FMIX 0x2127 -#define GER_DRAWFLAG 0x2128 // long -#define FASTMODE 1<<28 -#define STENCIL 0x8000 -#define SOLIDFILL 0x4000 -#define TRANS_ENABLE 0x1000 -#define TRANS_REVERSE 0x2000 -#define YMAJ 0x0400 -#define XNEG 0x0200 -#define YNEG 0x0100 -#define SRCMONO 0x0040 -#define PATMONO 0x0020 -#define SCR2SCR 0x0004 -#define PAT2SCR 0x0002 -#define GER_FCOLOUR 0x212C // Word for 9440, long for 96xx -#define GER_BCOLOUR 0x2130 // Word for 9440, long for 96xx -#define GER_PATLOC 0x2134 // Word -#define GER_DEST_XY 0x2138 -#define GER_DEST_X 0x2138 // Word -#define GER_DEST_Y 0x213A // Word -#define GER_SRC_XY 0x213C -#define GER_SRC_X 0x213C // Word -#define GER_SRC_Y 0x213E // Word -#define GER_DIM_XY 0x2140 -#define GER_DIM_X 0x2140 // Word -#define GER_DIM_Y 0x2142 // Word -#define GER_STYLE 0x2144 // Long -#define GER_CKEY 0x2168 // Long -#define GER_FPATCOL 0x2178 -#define GER_BPATCOL 0x217C -#define GER_PATTERN 0x2180 // from 0x2180 to 0x21FF - - Additional - Graphics Engine for 96xx -#define GER_SRCCLIP_XY 0x2148 -#define GER_SRCCLIP_X 0x2148 // Word -#define GER_SRCCLIP_Y 0x214A // Word -#define GER_DSTCLIP_XY 0x214C -#define GER_DSTCLIP_X 0x214C // Word -#define GER_DSTCLIP_Y 0x214E // Word -*/ - -READ8_MEMBER(trident_vga_device::accel_r) -{ - uint8_t res = 0xff; - - if(offset >= 0x60) - return tri.accel_pattern[(offset-0x60) % 0x80]; - - switch(offset) - { - case 0x00: // Status - if(tri.accel_busy) - res = 0x80; - else - res = 0x00; - break; - // Operation mode: - // bit 8: disable clipping if set - case 0x02: // Operation Mode - res = tri.accel_opermode & 0x00ff; - break; - case 0x03: - res = (tri.accel_opermode & 0xff00) >> 8; - break; - case 0x04: // Command register - res = tri.accel_command; - break; - case 0x07: // Foreground Mix? - res = tri.accel_fmix; - break; - default: - logerror("Trident: unimplemented acceleration register offset %02x read\n",offset); - } - return res; -} - -WRITE8_MEMBER(trident_vga_device::accel_w) -{ - if(offset >= 0x60) - { - tri.accel_pattern[(offset-0x60) % 0x80] = data; - return; - } - - switch(offset) - { - case 0x02: // Operation Mode - tri.accel_opermode = (tri.accel_opermode & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode); - break; - case 0x03: - tri.accel_opermode = (tri.accel_opermode & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Operation Mode set to %04x\n",tri.accel_opermode); - break; - case 0x04: // Command register - tri.accel_command = data; - accel_command(); - break; - case 0x07: // Foreground Mix? - tri.accel_fmix = data; - if(LOG_ACCEL) logerror("Trident: FMIX set to %02x\n",data); - break; - case 0x08: // Draw flags - tri.accel_drawflags = (tri.accel_drawflags & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags); - break; - case 0x09: - tri.accel_drawflags = (tri.accel_drawflags & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags); - break; - case 0x0a: - tri.accel_drawflags = (tri.accel_drawflags & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags); - break; - case 0x0b: - tri.accel_drawflags = (tri.accel_drawflags & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: Draw flags set to %08x\n",tri.accel_drawflags); - break; - case 0x0c: // Foreground Colour - tri.accel_fgcolour = (tri.accel_fgcolour & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour); - break; - case 0x0d: - tri.accel_fgcolour = (tri.accel_fgcolour & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour); - break; - case 0x0e: - tri.accel_fgcolour = (tri.accel_fgcolour & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour); - break; - case 0x0f: - tri.accel_fgcolour = (tri.accel_fgcolour & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: Foreground Colour set to %08x\n",tri.accel_fgcolour); - break; - case 0x10: // Background Colour - tri.accel_bgcolour = (tri.accel_bgcolour & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour); - break; - case 0x11: - tri.accel_bgcolour = (tri.accel_bgcolour & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour); - break; - case 0x12: - tri.accel_bgcolour = (tri.accel_bgcolour & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour); - break; - case 0x13: - tri.accel_bgcolour = (tri.accel_bgcolour & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: Background Colour set to %08x\n",tri.accel_bgcolour); - break; - case 0x14: // Pattern Location - tri.accel_pattern_loc = (tri.accel_pattern_loc & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc); - break; - case 0x15: - tri.accel_pattern_loc = (tri.accel_pattern_loc & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Pattern Location set to %04x\n",tri.accel_pattern_loc); - break; - case 0x18: // Destination X - tri.accel_dest_x = (tri.accel_dest_x & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x); - break; - case 0x19: - tri.accel_dest_x = (tri.accel_dest_x & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Destination X set to %04x\n",tri.accel_dest_x); - break; - case 0x1a: // Destination Y - tri.accel_dest_y = (tri.accel_dest_y & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y); - break; - case 0x1b: - tri.accel_dest_y = (tri.accel_dest_y & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Destination Y set to %04x\n",tri.accel_dest_y); - break; - case 0x1c: // Source X - tri.accel_source_x = (tri.accel_source_x & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Source X set to %04x\n",tri.accel_source_x); - break; - case 0x1d: - tri.accel_source_x = (tri.accel_source_x & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Source X set to %04x\n",tri.accel_source_x); - break; - case 0x1e: // Source Y - tri.accel_source_y = (tri.accel_source_y & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y); - break; - case 0x1f: - tri.accel_source_y = (tri.accel_source_y & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Source Y set to %04x\n",tri.accel_source_y); - break; - case 0x20: // Dimension(?) X - tri.accel_dim_x = (tri.accel_dim_x & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x); - break; - case 0x21: - tri.accel_dim_x = (tri.accel_dim_x & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Dimension X set to %04x\n",tri.accel_dim_x); - break; - case 0x22: // Dimension(?) Y - tri.accel_dim_y = (tri.accel_dim_y & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y); - break; - case 0x23: - tri.accel_dim_y = (tri.accel_dim_y & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Dimension y set to %04x\n",tri.accel_dim_y); - break; - case 0x24: // Style - tri.accel_style = (tri.accel_style & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style); - break; - case 0x25: - tri.accel_style = (tri.accel_style & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style); - break; - case 0x26: - tri.accel_style = (tri.accel_style & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style); - break; - case 0x27: - tri.accel_style = (tri.accel_style & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: Style set to %08x\n",tri.accel_style); - break; - case 0x28: // Source Clip X - tri.accel_source_x_clip = (tri.accel_source_x_clip & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip); - break; - case 0x29: - tri.accel_source_x_clip = (tri.accel_source_x_clip & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Source X Clip set to %04x\n",tri.accel_source_x_clip); - break; - case 0x2a: // Source Clip Y - tri.accel_source_y_clip = (tri.accel_source_y_clip & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip); - break; - case 0x2b: - tri.accel_source_y_clip = (tri.accel_source_y_clip & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Source Y Clip set to %04x\n",tri.accel_source_y_clip); - break; - case 0x2c: // Destination Clip X - tri.accel_dest_x_clip = (tri.accel_dest_x_clip & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip); - break; - case 0x2d: - tri.accel_dest_x_clip = (tri.accel_dest_x_clip & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Destination X Clip set to %04x\n",tri.accel_dest_x_clip); - break; - case 0x2e: // Destination Clip Y - tri.accel_dest_y_clip = (tri.accel_dest_y_clip & 0xff00) | data; - if(LOG_ACCEL) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip); - break; - case 0x2f: - tri.accel_dest_y_clip = (tri.accel_dest_y_clip & 0x00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: Destination Y Clip set to %04x\n",tri.accel_dest_y_clip); - break; - case 0x48: // CKEY (Chromakey?) - tri.accel_ckey = (tri.accel_ckey & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey); - break; - case 0x49: - tri.accel_ckey = (tri.accel_ckey & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey); - break; - case 0x4a: - tri.accel_ckey = (tri.accel_ckey & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey); - break; - case 0x4b: - tri.accel_ckey = (tri.accel_ckey & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: CKey set to %08x\n",tri.accel_ckey); - break; - case 0x58: // Foreground Pattern Colour - tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour); - break; - case 0x59: - tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour); - break; - case 0x5a: - tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour); - break; - case 0x5b: - tri.accel_fg_pattern_colour = (tri.accel_fg_pattern_colour & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: FG Pattern Colour set to %08x\n",tri.accel_fg_pattern_colour); - break; - case 0x5c: // Background Pattern Colour - tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xffffff00) | data; - if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour); - break; - case 0x5d: - tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xffff00ff) | (data << 8); - if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour); - break; - case 0x5e: - tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0xff00ffff) | (data << 16); - if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour); - break; - case 0x5f: - tri.accel_bg_pattern_colour = (tri.accel_bg_pattern_colour & 0x00ffffff) | (data << 24); - if(LOG_ACCEL) logerror("Trident: BG Pattern Colour set to %08x\n",tri.accel_bg_pattern_colour); - break; - default: - logerror("Trident: unimplemented acceleration register offset %02x write %02x\n",offset,data); - } -} - -void trident_vga_device::accel_command() -{ - switch(tri.accel_command) - { - case 0x00: - if(LOG) logerror("Trident: Command: NOP\n"); - break; - case 0x01: - if(LOG) logerror("Trident: Command: BitBLT ROP3 (Source %i,%i Dest %i,%i Size %i,%i)\n",tri.accel_source_x,tri.accel_source_y,tri.accel_dest_x,tri.accel_dest_y,tri.accel_dim_x,tri.accel_dim_y); - if(LOG) logerror("BitBLT: Drawflags = %08x FMIX = %02x\n",tri.accel_drawflags,tri.accel_fmix); - accel_bitblt(); - break; - case 0x02: - if(LOG) logerror("Trident: Command: BitBLT ROP4\n"); - break; - case 0x03: - if(LOG) logerror("Trident: Command: Scanline\n"); - break; - case 0x04: - if(LOG) logerror("Trident: Command: Bresenham Line (Source %i,%i Dest %i,%i Size %i,%i)\n",tri.accel_source_x,tri.accel_source_y,tri.accel_dest_x,tri.accel_dest_y,tri.accel_dim_x,tri.accel_dim_y); - if(LOG) logerror("BLine: Drawflags = %08x FMIX = %02x\n",tri.accel_drawflags,tri.accel_fmix); - accel_line(); - break; - case 0x05: - if(LOG) logerror("Trident: Command: Short Vector\n"); - break; - case 0x06: - if(LOG) logerror("Trident: Command: Fast Line\n"); - break; - case 0x07: - if(LOG) logerror("Trident: Command: Trapezoid Fill\n"); - break; - case 0x08: - if(LOG) logerror("Trident: Command: Ellipse\n"); - break; - case 0x09: - if(LOG) logerror("Trident: Command: Ellipse Fill\n"); - break; - default: - logerror("Trident: Unknown acceleration command %02x\n",tri.accel_command); - } -} - -void trident_vga_device::accel_bitblt() -{ - int x,y; - int sx,sy; - int xdir,ydir; - int xstart,xend,ystart,yend; - - if(tri.accel_drawflags & 0x0040) // TODO: handle PATMONO also - { - tri.accel_mem_x = tri.accel_dest_x; - tri.accel_mem_y = tri.accel_dest_y; - tri.accel_memwrite_active = true; - return; - } - - if(tri.accel_drawflags & 0x0200) - { - xdir = -1; - xstart = tri.accel_dest_x; - xend = tri.accel_dest_x-tri.accel_dim_x-1; - } - else - { - xdir = 1; - xstart = tri.accel_dest_x; - xend = tri.accel_dest_x+tri.accel_dim_x+1; - } - if(tri.accel_drawflags & 0x0100) - { - ydir = -1; - ystart = tri.accel_dest_y; - yend = tri.accel_dest_y-tri.accel_dim_y-1; - } - else - { - ydir = 1; - ystart = tri.accel_dest_y; - yend = tri.accel_dest_y+tri.accel_dim_y+1; - } - sy = tri.accel_source_y; - - for(y=ystart;y!=yend;y+=ydir,sy+=ydir) - { - sx = tri.accel_source_x; - for(x=xstart;x!=xend;x+=xdir,sx+=xdir) - { - if(tri.accel_drawflags & 0x4000) // Solid fill - { - WRITEPIXEL(x,y,tri.accel_fgcolour); - } - else - { - WRITEPIXEL(x,y,READPIXEL(sx,sy)); - } - } - } -} - -void trident_vga_device::accel_line() -{ - uint32_t col = tri.accel_fgcolour; -// TGUI_SRC_XY(dmin-dmaj,dmin); -// TGUI_DEST_XY(x,y); -// TGUI_DIM_XY(dmin+e,len); - int16_t dx = tri.accel_source_y - tri.accel_source_x; - int16_t dy = tri.accel_source_y; - int16_t err = tri.accel_dim_x + tri.accel_source_y; - int sx = (tri.accel_drawflags & 0x0200) ? -1 : 1; - int sy = (tri.accel_drawflags & 0x0100) ? -1 : 1; - int x,y,z; - - x = tri.accel_dest_x; - y = tri.accel_dest_y; - - WRITEPIXEL(x,y,col); - for(z=0;z<tri.accel_dim_y;z++) - { - if(tri.accel_drawflags & 0x0400) - y += sy; - else - x += sx; - if(err > 0) - { - if(tri.accel_drawflags & 0x0400) - x += sx; - else - y += sy; - WRITEPIXEL(x,y,col); - err += (dy-dx); - } - else - { - WRITEPIXEL(x,y,col); - err += dy; - } - } -} - -// feed data written to VRAM to an active BitBLT command -void trident_vga_device::accel_data_write(uint32_t data) -{ - int xdir = 1,ydir = 1; - - if(tri.accel_drawflags & 0x0200) // XNEG - xdir = -1; - if(tri.accel_drawflags & 0x0100) // YNEG - ydir = -1; - - for(int x=31;x>=0;x--) - { - if(tri.accel_mem_x <= tri.accel_dest_x+tri.accel_dim_x && tri.accel_mem_x >= tri.accel_dest_x-tri.accel_dim_x) - { - if(((data >> x) & 0x01) != 0) - WRITEPIXEL(tri.accel_mem_x,tri.accel_mem_y,tri.accel_fgcolour); - else - WRITEPIXEL(tri.accel_mem_x,tri.accel_mem_y,tri.accel_bgcolour); - } - tri.accel_mem_x+=xdir; - } - if(tri.accel_mem_x > tri.accel_dest_x+tri.accel_dim_x || tri.accel_mem_x < tri.accel_dest_x-tri.accel_dim_x) - { - tri.accel_mem_x = tri.accel_dest_x; - tri.accel_mem_y+=ydir; - if(tri.accel_mem_y > tri.accel_dest_y+tri.accel_dim_y || tri.accel_mem_y < tri.accel_dest_y-tri.accel_dim_y) - tri.accel_memwrite_active = false; // completed - } -} |