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-rw-r--r--trunk/src/emu/cpu/superfx/superfx.c1680
1 files changed, 1680 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/superfx/superfx.c b/trunk/src/emu/cpu/superfx/superfx.c
new file mode 100644
index 00000000000..5c6ea18a2c7
--- /dev/null
+++ b/trunk/src/emu/cpu/superfx/superfx.c
@@ -0,0 +1,1680 @@
+#include "emu.h"
+#include "debugger.h"
+#include "superfx.h"
+
+typedef struct
+{
+ UINT16 offset;
+ UINT8 bitpend;
+ UINT8 data[8];
+} pixelcache_t;
+
+typedef struct
+{
+ UINT8 buffer[0x200];
+ UINT8 valid[0x20];
+} cache_t;
+
+typedef struct _superfx_state superfx_state;
+struct _superfx_state
+{
+ superfx_config config;
+
+ devcb_resolved_write_line out_irq_func;
+
+ UINT8 pipeline;
+ UINT16 ramaddr; // RAM Address
+
+ UINT16 r[16]; // GPRs
+ UINT16 sfr; // Status Flag Register
+ UINT8 pbr; // Program Bank Register
+ UINT8 rombr; // Game Pack ROM Bank Register
+ UINT8 rambr; // Game Pack RAM Bank Register
+ UINT16 cbr; // Cache Base Register
+ UINT8 scbr; // Screen Base Register
+ UINT8 scmr; // Screen Mode Register
+ UINT8 colr; // Color Register
+ UINT8 por; // Plot Option Register
+ UINT8 bramr; // Back-Up RAM Register
+ UINT8 vcr; // Version Code Register
+ UINT8 cfgr; // Config Register
+ UINT8 clsr; // Clock Select Register
+
+ UINT32 romcl; // Clock ticks until ROMDR is valid
+ UINT8 romdr; // ROM Buffer Data Register
+
+ UINT32 ramcl; // Clock ticks until RAMDR is valid;
+ UINT16 ramar; // RAM Buffer Address Register
+ UINT8 ramdr; // RAM Buffer Data Register
+
+ UINT16 *sreg; // Source Register (From)
+ UINT8 sreg_idx;// Source Register (To), index
+ UINT16 *dreg; // Destination Register (To)
+ UINT8 dreg_idx;// Destination Register (To), index
+ UINT8 r15_modified;
+
+ UINT8 irq; // IRQ Pending
+
+ UINT32 cache_access_speed;
+ UINT32 memory_access_speed;
+
+ cache_t cache;
+ pixelcache_t pixelcache[2];
+
+ legacy_cpu_device *device;
+ address_space *program;
+ int icount;
+};
+
+INLINE superfx_state *get_safe_token(device_t *device)
+{
+ assert(device != NULL);
+ assert(device->type() == SUPERFX);
+ return (superfx_state *)downcast<legacy_cpu_device *>(device)->token();
+}
+
+/*****************************************************************************/
+
+INLINE void superfx_regs_reset(superfx_state *cpustate);
+static void superfx_update_speed(superfx_state *cpustate);
+static void superfx_cache_flush(superfx_state *cpustate);
+static UINT8 superfx_cache_mmio_read(superfx_state *cpustate, UINT32 addr);
+static void superfx_cache_mmio_write(superfx_state *cpustate, UINT32 addr, UINT8 data);
+static void superfx_memory_reset(superfx_state *cpustate);
+INLINE UINT8 superfx_bus_read(superfx_state *cpustate, UINT32 addr);
+INLINE void superfx_bus_write(superfx_state *cpustate, UINT32 addr, UINT8 data);
+INLINE void superfx_pixelcache_flush(superfx_state *cpustate, INT32 line);
+INLINE void superfx_plot(superfx_state *cpustate, UINT8 x, UINT8 y);
+static UINT8 superfx_rpix(superfx_state *cpustate, UINT8 r1, UINT8 r2);
+INLINE UINT8 superfx_color(superfx_state *cpustate, UINT8 source);
+
+INLINE void superfx_rambuffer_sync(superfx_state *cpustate);
+INLINE UINT8 superfx_rambuffer_read(superfx_state *cpustate, UINT16 addr);
+INLINE void superfx_rambuffer_write(superfx_state *cpustate, UINT16 addr, UINT8 val);
+
+INLINE void superfx_rombuffer_sync(superfx_state *cpustate);
+INLINE void superfx_rombuffer_update(superfx_state *cpustate);
+INLINE UINT8 superfx_rombuffer_read(superfx_state *cpustate);
+
+INLINE void superfx_gpr_write(superfx_state *cpustate, UINT8 r, UINT16 data);
+INLINE UINT8 superfx_op_read(superfx_state *cpustate, UINT16 addr);
+INLINE UINT8 superfx_peekpipe(superfx_state *cpustate);
+INLINE UINT8 superfx_pipe(superfx_state *cpustate);
+INLINE void superfx_add_clocks_internal(superfx_state *cpustate, UINT32 clocks);
+static void superfx_timing_reset(superfx_state *cpustate);
+
+/*****************************************************************************/
+
+#define SUPERFX_SFR_OV_SET ((cpustate->sfr & SUPERFX_SFR_OV) ? 1 : 0)
+#define SUPERFX_SFR_OV_CLEAR ((cpustate->sfr & SUPERFX_SFR_OV) ? 0 : 1)
+#define SUPERFX_SFR_S_SET ((cpustate->sfr & SUPERFX_SFR_S) ? 1 : 0)
+#define SUPERFX_SFR_S_CLEAR ((cpustate->sfr & SUPERFX_SFR_S) ? 0 : 1)
+#define SUPERFX_SFR_CY_SET ((cpustate->sfr & SUPERFX_SFR_CY) ? 1 : 0)
+#define SUPERFX_SFR_CY_CLEAR ((cpustate->sfr & SUPERFX_SFR_CY) ? 0 : 1)
+#define SUPERFX_SFR_Z_SET ((cpustate->sfr & SUPERFX_SFR_Z) ? 1 : 0)
+#define SUPERFX_SFR_Z_CLEAR ((cpustate->sfr & SUPERFX_SFR_Z) ? 0 : 1)
+
+INLINE void superfx_regs_reset(superfx_state *cpustate)
+{
+ cpustate->sfr &= ~(SUPERFX_SFR_B | SUPERFX_SFR_ALT3);
+
+ cpustate->sreg = &cpustate->r[0];
+ cpustate->dreg = &cpustate->r[0];
+ cpustate->dreg_idx = 0;
+ cpustate->sreg_idx = 0;
+}
+
+static void superfx_update_speed(superfx_state *cpustate)
+{
+ cpustate->cache_access_speed = (cpustate->clsr ? 1 : 2);
+ cpustate->memory_access_speed = (cpustate->clsr ? 5 : 6);
+ if(cpustate->clsr)
+ {
+ cpustate->cfgr &= ~SUPERFX_CFGR_MS0; // Cannot use high-speed multiplication in 21MHz mode
+ }
+}
+
+static void superfx_cache_flush(superfx_state *cpustate)
+{
+ UINT32 n = 0;
+ for(n = 0; n < 32; n++)
+ {
+ cpustate->cache.valid[n] = 0;
+ }
+}
+
+static UINT8 superfx_cache_mmio_read(superfx_state *cpustate, UINT32 addr)
+{
+ addr = (addr + cpustate->cbr) & 0x1ff;
+ return cpustate->cache.buffer[addr];
+}
+
+static void superfx_cache_mmio_write(superfx_state *cpustate, UINT32 addr, UINT8 data)
+{
+ addr = (addr + cpustate->cbr) & 0x1ff;
+ cpustate->cache.buffer[addr] = data;
+ if((addr & 15) == 15)
+ {
+ cpustate->cache.valid[addr >> 4] = 1;
+ }
+}
+
+static void superfx_memory_reset(superfx_state *cpustate)
+{
+ UINT32 n = 0;
+ for(n = 0; n < 0x200; n++)
+ {
+ cpustate->cache.buffer[n] = 0x00;
+ }
+ for(n = 0; n < 0x20; n++)
+ {
+ cpustate->cache.valid[n] = 0;
+ }
+ for(n = 0; n < 2; n++)
+ {
+ cpustate->pixelcache[n].offset = ~0;
+ cpustate->pixelcache[n].bitpend = 0x00;
+ }
+}
+
+INLINE UINT8 superfx_bus_read(superfx_state *cpustate, UINT32 addr)
+{
+ return cpustate->program->read_byte(addr);
+}
+
+INLINE void superfx_bus_write(superfx_state *cpustate, UINT32 addr, UINT8 data)
+{
+ cpustate->program->write_byte(addr, data);
+}
+
+INLINE void superfx_pixelcache_flush(superfx_state *cpustate, INT32 line)
+{
+ UINT8 x = cpustate->pixelcache[line].offset << 3;
+ UINT8 y = cpustate->pixelcache[line].offset >> 5;
+ UINT32 cn = 0;
+ UINT32 bpp = 2 << ((cpustate->scmr & SUPERFX_SCMR_MD) - ((cpustate->scmr & SUPERFX_SCMR_MD) >> 1)); // = [regs.scmr.md]{ 2, 4, 4, 8 };
+ UINT32 addr = 0;
+ UINT32 n = 0;
+
+ if(cpustate->pixelcache[line].bitpend == 0x00)
+ {
+ return;
+ }
+
+ switch(((cpustate->por & SUPERFX_POR_OBJ) ? SUPERFX_SCMR_HT3 : (cpustate->scmr & SUPERFX_SCMR_HT_MASK)))
+ {
+ case SUPERFX_SCMR_HT0:
+ cn = ((x & 0xf8) << 1) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT1:
+ cn = ((x & 0xf8) << 1) + ((x & 0xf8) >> 1) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT2:
+ cn = ((x & 0xf8) << 1) + ((x & 0xf8) << 0) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT3:
+ cn = ((y & 0x80) << 2) + ((x & 0x80) << 1) + ((y & 0x78) << 1) + ((x & 0x78) >> 3);
+ break;
+ }
+
+ addr = 0x700000 + (cn * (bpp << 3)) + (cpustate->scbr << 10) + ((y & 0x07) * 2);
+
+ for(n = 0; n < bpp; n++)
+ {
+ UINT32 byte = ((n >> 1) << 4) + (n & 1); // = [n]{ 0, 1, 16, 17, 32, 33, 48, 49 };
+ UINT8 data = 0x00;
+ UINT32 x32 = 0;
+ for(x32 = 0; x32 < 8; x32++)
+ {
+ data |= ((cpustate->pixelcache[line].data[x32] >> n) & 1) << x32;
+ }
+ if(cpustate->pixelcache[line].bitpend != 0xff)
+ {
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ data &= cpustate->pixelcache[line].bitpend;
+ data |= superfx_bus_read(cpustate, addr + byte) & ~cpustate->pixelcache[line].bitpend;
+ }
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ superfx_bus_write(cpustate, addr + byte, data);
+ }
+
+ cpustate->pixelcache[line].bitpend = 0x00;
+}
+
+INLINE void superfx_plot(superfx_state *cpustate, UINT8 x, UINT8 y)
+{
+ UINT8 color = cpustate->colr;
+ UINT16 offset = (y << 5) + (x >> 3);
+
+ if((cpustate->por & SUPERFX_POR_DITHER) != 0 && (cpustate->scmr & SUPERFX_SCMR_MD) != 3)
+ {
+ if((x ^ y) & 1)
+ {
+ color >>= 4;
+ }
+ color &= 0x0f;
+ }
+
+ if((cpustate->por & SUPERFX_POR_TRANSPARENT) == 0)
+ {
+ if((cpustate->scmr & SUPERFX_SCMR_MD) == 3)
+ {
+ if(cpustate->por & SUPERFX_POR_FREEZEHIGH)
+ {
+ if((color & 0x0f) == 0)
+ {
+ return;
+ }
+ }
+ else
+ {
+ if(color == 0)
+ {
+ return;
+ }
+ }
+ }
+ else
+ {
+ if((color & 0x0f) == 0)
+ {
+ return;
+ }
+ }
+ }
+
+ if(offset != cpustate->pixelcache[0].offset)
+ {
+ superfx_pixelcache_flush(cpustate, 1);
+ cpustate->pixelcache[1] = cpustate->pixelcache[0];
+ cpustate->pixelcache[0].bitpend = 0x00;
+ cpustate->pixelcache[0].offset = offset;
+ }
+
+ x = (x & 7) ^ 7;
+ cpustate->pixelcache[0].data[x] = color;
+ cpustate->pixelcache[0].bitpend |= 1 << x;
+ if(cpustate->pixelcache[0].bitpend == 0xff)
+ {
+ superfx_pixelcache_flush(cpustate, 1);
+ cpustate->pixelcache[1] = cpustate->pixelcache[0];
+ cpustate->pixelcache[0].bitpend = 0x00;
+ }
+}
+
+static UINT8 superfx_rpix(superfx_state *cpustate, UINT8 x, UINT8 y)
+{
+ UINT32 cn = 0;
+ UINT32 bpp = 0;
+ UINT32 addr = 0;
+ UINT8 data = 0x00;
+ UINT32 n = 0;
+
+ superfx_pixelcache_flush(cpustate, 1);
+ superfx_pixelcache_flush(cpustate, 0);
+
+ bpp = 2 << ((cpustate->scmr & SUPERFX_SCMR_MD) - ((cpustate->scmr & SUPERFX_SCMR_MD) >> 1)); // = [regs.scmr.md]{ 2, 4, 4, 8 };
+
+ switch((cpustate->por & SUPERFX_POR_OBJ) ? SUPERFX_SCMR_HT3 : (cpustate->scmr & SUPERFX_SCMR_HT_MASK))
+ {
+ case SUPERFX_SCMR_HT0:
+ cn = ((x & 0xf8) << 1) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT1:
+ cn = ((x & 0xf8) << 1) + ((x & 0xf8) >> 1) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT2:
+ cn = ((x & 0xf8) << 1) + ((x & 0xf8) << 0) + ((y & 0xf8) >> 3);
+ break;
+ case SUPERFX_SCMR_HT3:
+ cn = ((y & 0x80) << 2) + ((x & 0x80) << 1) + ((y & 0x78) << 1) + ((x & 0x78) >> 3);
+ break;
+ }
+
+ addr = 0x700000 + (cn * (bpp << 3)) + (cpustate->scbr << 10) + ((y & 0x07) * 2);
+ x = (x & 7) ^ 7;
+
+ for(n = 0; n < bpp; n++)
+ {
+ UINT32 byte = ((n >> 1) << 4) + (n & 1); // = [n]{ 0, 1, 16, 17, 32, 33, 48, 49 };
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ data |= ((superfx_bus_read(cpustate, addr + byte) >> x) & 1) << n;
+ }
+
+ return data;
+}
+
+INLINE UINT8 superfx_color(superfx_state *cpustate, UINT8 source)
+{
+ if(cpustate->por & SUPERFX_POR_HIGHNIBBLE)
+ {
+ return (cpustate->colr & 0xf0) | (source >> 4);
+ }
+ if(cpustate->por & SUPERFX_POR_FREEZEHIGH)
+ {
+ return (cpustate->colr & 0xf0) | (source & 0x0f);
+ }
+ return source;
+}
+
+INLINE void superfx_rambuffer_sync(superfx_state *cpustate)
+{
+ if(cpustate->ramcl)
+ {
+ superfx_add_clocks_internal(cpustate, cpustate->ramcl);
+ }
+}
+
+INLINE UINT8 superfx_rambuffer_read(superfx_state *cpustate, UINT16 addr)
+{
+ superfx_rambuffer_sync(cpustate);
+ return superfx_bus_read(cpustate, 0x700000 + (cpustate->rambr << 16) + addr);
+}
+
+INLINE void superfx_rambuffer_write(superfx_state *cpustate, UINT16 addr, UINT8 data)
+{
+ superfx_rambuffer_sync(cpustate);
+ cpustate->ramcl = cpustate->memory_access_speed;
+ cpustate->ramar = addr;
+ cpustate->ramdr = data;
+}
+
+INLINE void superfx_rombuffer_sync(superfx_state *cpustate)
+{
+ if(cpustate->romcl)
+ {
+ superfx_add_clocks_internal(cpustate, cpustate->romcl);
+ }
+}
+
+INLINE void superfx_rombuffer_update(superfx_state *cpustate)
+{
+ cpustate->sfr |= SUPERFX_SFR_R;
+ cpustate->romcl = cpustate->memory_access_speed;
+}
+
+INLINE UINT8 superfx_rombuffer_read(superfx_state *cpustate)
+{
+ superfx_rombuffer_sync(cpustate);
+ return cpustate->romdr;
+}
+
+INLINE void superfx_gpr_write(superfx_state *cpustate, UINT8 r, UINT16 data)
+{
+ cpustate->r[r] = data;
+ if(r == 14)
+ {
+ superfx_rombuffer_update(cpustate);
+ }
+ else if(r == 15)
+ {
+ cpustate->r15_modified = 1;
+ }
+}
+
+INLINE UINT8 superfx_op_read(superfx_state *cpustate, UINT16 addr)
+{
+ UINT16 offset = addr - cpustate->cbr;
+ if(offset < 512)
+ {
+ if(!cpustate->cache.valid[offset >> 4])
+ {
+ UINT32 dp = offset & 0xfff0;
+ UINT32 sp = (cpustate->pbr << 16) + ((cpustate->cbr + dp) & 0xfff0);
+ UINT32 n = 0;
+ for(n = 0; n < 16; n++)
+ {
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ cpustate->cache.buffer[dp++] = superfx_bus_read(cpustate, sp++);
+ }
+ cpustate->cache.valid[offset >> 4] = 1;
+ }
+ else
+ {
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ }
+ return cpustate->cache.buffer[offset];
+ }
+
+ if(cpustate->pbr <= 0x5f)
+ {
+ //$[00-5f]:[0000-ffff] ROM
+ superfx_rombuffer_sync(cpustate);
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ return superfx_bus_read(cpustate, (cpustate->pbr << 16) + addr);
+ }
+ else
+ {
+ //$[60-7f]:[0000-ffff] RAM
+ superfx_rambuffer_sync(cpustate);
+ superfx_add_clocks_internal(cpustate, cpustate->memory_access_speed);
+ return superfx_bus_read(cpustate, (cpustate->pbr << 16) + addr);
+ }
+}
+
+INLINE UINT8 superfx_peekpipe(superfx_state *cpustate)
+{
+ UINT8 result = cpustate->pipeline;
+ cpustate->pipeline = superfx_op_read(cpustate, cpustate->r[15]);
+ cpustate->r15_modified = 0;
+ return result;
+}
+
+INLINE UINT8 superfx_pipe(superfx_state *cpustate)
+{
+ UINT8 result = cpustate->pipeline;
+ cpustate->pipeline = superfx_op_read(cpustate, ++cpustate->r[15]);
+ cpustate->r15_modified = 0;
+ return result;
+}
+
+/*****************************************************************************/
+
+/* reads to SuperFX RAM only happen if this returns 1 */
+int superfx_access_ram(device_t *cpu)
+{
+ superfx_state *cpustate = get_safe_token(cpu);
+
+ if ((cpustate->sfr & SUPERFX_SFR_G) && (cpustate->scmr & SUPERFX_SCMR_RAN))
+ return 0;
+
+ return 1;
+}
+
+/* reads to SuperFX ROM only happen if this returns 1 */
+int superfx_access_rom(device_t *cpu)
+{
+ superfx_state *cpustate = get_safe_token(cpu);
+
+ if ((cpustate->sfr & SUPERFX_SFR_G) && (cpustate->scmr & SUPERFX_SCMR_RON))
+ return 0;
+
+ return 1;
+}
+
+UINT8 superfx_mmio_read(device_t *cpu, UINT32 addr)
+{
+ superfx_state *cpustate = get_safe_token(cpu);
+
+ addr &= 0xffff;
+
+ if(addr >= 0x3100 && addr <= 0x32ff)
+ {
+ return superfx_cache_mmio_read(cpustate, addr - 0x3100);
+ }
+
+ if(addr >= 0x3000 && addr <= 0x301f)
+ {
+ return cpustate->r[(addr >> 1) & 0xf] >> ((addr & 1) << 3);
+ }
+
+ switch(addr)
+ {
+ case 0x3030:
+ return cpustate->sfr >> 0;
+
+ case 0x3031:
+ {
+ UINT8 r = cpustate->sfr >> 8;
+ cpustate->sfr &= ~SUPERFX_SFR_IRQ;
+ cpustate->irq = 0;
+ cpustate->out_irq_func(cpustate->irq);
+ return r;
+ }
+
+ case 0x3034:
+ return cpustate->pbr;
+
+ case 0x3036:
+ return cpustate->rombr;
+
+ case 0x303b:
+ return cpustate->vcr;
+
+ case 0x303c:
+ return cpustate->rambr;
+
+ case 0x303e:
+ return cpustate->cbr >> 0;
+
+ case 0x303f:
+ return cpustate->cbr >> 8;
+ }
+
+ return 0;
+}
+
+void superfx_mmio_write(device_t *cpu, UINT32 addr, UINT8 data)
+{
+ superfx_state *cpustate = get_safe_token(cpu);
+
+ addr &= 0xffff;
+
+ //printf( "superfx_mmio_write: %08x = %02x\n", addr, data );
+
+ if(addr >= 0x3100 && addr <= 0x32ff)
+ {
+ superfx_cache_mmio_write(cpustate, addr - 0x3100, data);
+ return;
+ }
+
+ if(addr >= 0x3000 && addr <= 0x301f)
+ {
+ UINT32 n = (addr >> 1) & 0xf;
+ if((addr & 1) == 0)
+ {
+ cpustate->r[n] = (cpustate->r[n] & 0xff00) | data;
+ }
+ else
+ {
+ cpustate->r[n] = (data << 8) | (cpustate->r[n] & 0xff);
+ }
+
+ if(addr == 0x301f)
+ {
+ cpustate->sfr |= SUPERFX_SFR_G;
+ }
+ return;
+ }
+
+ switch(addr)
+ {
+ case 0x3030:
+ {
+ UINT8 g = (cpustate->sfr & SUPERFX_SFR_G) ? 1 : 0;
+ cpustate->sfr = (cpustate->sfr & 0xff00) | (data << 0);
+ if(g == 1 && !(cpustate->sfr & SUPERFX_SFR_G))
+ {
+ cpustate->cbr = 0x0000;
+ superfx_cache_flush(cpustate);
+ }
+ break;
+ }
+
+ case 0x3031:
+ cpustate->sfr = (data << 8) | (cpustate->sfr & 0x00ff);
+ break;
+
+ case 0x3033:
+ cpustate->bramr = data & 1;
+ break;
+
+ case 0x3034:
+ cpustate->pbr = data & 0x7f;
+ superfx_cache_flush(cpustate);
+ break;
+
+ case 0x3037:
+ cpustate->cfgr = data;
+ superfx_update_speed(cpustate);
+ break;
+
+ case 0x3038:
+ cpustate->scbr = data;
+ break;
+
+ case 0x3039:
+ cpustate->clsr = data & 1;
+ superfx_update_speed(cpustate);
+ break;
+
+ case 0x303a:
+ cpustate->scmr = data;
+ break;
+ }
+}
+
+INLINE void superfx_add_clocks_internal(superfx_state *cpustate, UINT32 clocks)
+{
+ if(cpustate->romcl)
+ {
+ cpustate->romcl -= MIN(clocks, cpustate->romcl);
+ if(cpustate->romcl == 0)
+ {
+ cpustate->sfr &= ~SUPERFX_SFR_R;
+ cpustate->romdr = superfx_bus_read(cpustate, (cpustate->rombr << 16) + cpustate->r[14]);
+ }
+ }
+
+ if(cpustate->ramcl)
+ {
+ cpustate->ramcl -= MIN(clocks, cpustate->ramcl);
+ if(cpustate->ramcl == 0)
+ {
+ superfx_bus_write(cpustate, 0x700000 + (cpustate->rambr << 16) + cpustate->ramar, cpustate->ramdr);
+ }
+ }
+}
+
+static void superfx_timing_reset(superfx_state *cpustate)
+{
+ superfx_update_speed(cpustate);
+ cpustate->r15_modified = 0;
+
+ cpustate->romcl = 0;
+ cpustate->romdr = 0;
+
+ cpustate->ramcl = 0;
+ cpustate->ramar = 0;
+ cpustate->ramdr = 0;
+}
+
+void superfx_add_clocks(device_t *cpu, INT32 clocks)
+{
+ superfx_state *cpustate = get_safe_token(cpu);
+
+ superfx_add_clocks_internal(cpustate, clocks);
+}
+
+/*****************************************************************************/
+
+static void superfx_register_save( legacy_cpu_device *device )
+{
+ superfx_state *cpustate = get_safe_token(device);
+ int i;
+
+ device->save_item(NAME(cpustate->pipeline));
+ device->save_item(NAME(cpustate->ramaddr));
+
+ device->save_item(NAME(cpustate->r));
+ device->save_item(NAME(cpustate->sfr));
+ device->save_item(NAME(cpustate->pbr));
+ device->save_item(NAME(cpustate->rombr));
+ device->save_item(NAME(cpustate->rambr));
+ device->save_item(NAME(cpustate->cbr));
+ device->save_item(NAME(cpustate->scbr));
+ device->save_item(NAME(cpustate->scmr));
+ device->save_item(NAME(cpustate->colr));
+ device->save_item(NAME(cpustate->por));
+ device->save_item(NAME(cpustate->bramr));
+ device->save_item(NAME(cpustate->vcr));
+ device->save_item(NAME(cpustate->cfgr));
+ device->save_item(NAME(cpustate->clsr));
+
+ device->save_item(NAME(cpustate->romcl));
+ device->save_item(NAME(cpustate->romdr));
+
+ device->save_item(NAME(cpustate->ramcl));
+ device->save_item(NAME(cpustate->ramar));
+ device->save_item(NAME(cpustate->ramdr));
+
+ device->save_item(NAME(cpustate->sreg_idx));
+ device->save_item(NAME(cpustate->dreg_idx));
+ device->save_item(NAME(cpustate->r15_modified));
+
+ device->save_item(NAME(cpustate->irq));
+
+ device->save_item(NAME(cpustate->cache_access_speed));
+ device->save_item(NAME(cpustate->memory_access_speed));
+
+ device->save_item(NAME(cpustate->cache.buffer));
+ device->save_item(NAME(cpustate->cache.valid));
+
+ for (i = 0; i < 2; i++)
+ {
+ device->save_item(NAME(cpustate->pixelcache[i].offset), i);
+ device->save_item(NAME(cpustate->pixelcache[i].bitpend), i);
+ device->save_item(NAME(cpustate->pixelcache[i].data), i);
+ }
+
+ device->save_item(NAME(cpustate->icount));
+}
+
+static CPU_INIT( superfx )
+{
+ int i;
+ superfx_state *cpustate = get_safe_token(device);
+
+ for(i = 0; i < 16; i++)
+ {
+ cpustate->r[i] = 0;
+ }
+
+ cpustate->sfr = 0;
+ cpustate->pbr = 0;
+ cpustate->rombr = 0;
+ cpustate->rambr = 0;
+ cpustate->cbr = 0;
+ cpustate->scbr = 0;
+ cpustate->scmr = 0;
+ cpustate->colr = 0;
+ cpustate->por = 0;
+ cpustate->bramr = 0;
+ cpustate->vcr = 0x04;
+ cpustate->cfgr = 0;
+ cpustate->clsr = 0;
+ cpustate->pipeline = 0x01; // nop
+ cpustate->ramaddr = 0;
+ cpustate->r15_modified = 0;
+
+ superfx_regs_reset(cpustate);
+ superfx_memory_reset(cpustate);
+ superfx_update_speed(cpustate);
+
+ cpustate->device = device;
+ cpustate->program = device->space(AS_PROGRAM);
+
+ if (device->static_config() != NULL)
+ {
+ cpustate->config = *(superfx_config *)device->static_config();
+ }
+
+ cpustate->out_irq_func.resolve(cpustate->config.out_irq_func, *device);
+
+ superfx_register_save(device);
+}
+
+static CPU_EXIT( superfx )
+{
+}
+
+static CPU_RESET( superfx )
+{
+ int i;
+
+ superfx_state *cpustate = get_safe_token(device);
+
+ for(i = 0; i < 16; i++)
+ {
+ cpustate->r[i] = 0;
+ }
+
+ cpustate->sfr = 0;
+ cpustate->pbr = 0;
+ cpustate->rombr = 0;
+ cpustate->rambr = 0;
+ cpustate->cbr = 0;
+ cpustate->scbr = 0;
+ cpustate->scmr = 0;
+ cpustate->colr = 0;
+ cpustate->por = 0;
+ cpustate->bramr = 0;
+ cpustate->vcr = 0x04;
+ cpustate->cfgr = 0;
+ cpustate->clsr = 0;
+ cpustate->pipeline = 0x01; // nop
+ cpustate->ramaddr = 0;
+
+ superfx_regs_reset(cpustate);
+ superfx_timing_reset(cpustate);
+}
+
+INLINE void superfx_dreg_sfr_sz_update(superfx_state *cpustate)
+{
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (*(cpustate->dreg) & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (*(cpustate->dreg) == 0) ? SUPERFX_SFR_Z : 0;
+}
+
+static CPU_EXECUTE( superfx )
+{
+ superfx_state *cpustate = get_safe_token(device);
+ UINT8 op;
+
+ if(!(cpustate->sfr & SUPERFX_SFR_G))
+ {
+ superfx_add_clocks_internal(cpustate, 6);
+ cpustate->icount = MIN(cpustate->icount, 0);
+ }
+
+ while (cpustate->icount > 0 && (cpustate->sfr & SUPERFX_SFR_G))
+ {
+ if(!(cpustate->sfr & SUPERFX_SFR_G))
+ {
+ superfx_add_clocks_internal(cpustate, 6);
+ cpustate->icount = MIN(cpustate->icount, 0);
+ break;
+ }
+
+ debugger_instruction_hook(device, (cpustate->pbr << 16) | cpustate->r[15]);
+
+ op = superfx_peekpipe(cpustate);
+
+ switch(op)
+ {
+ case 0x00: // STOP
+ if((cpustate->cfgr & SUPERFX_CFGR_IRQ) == 0)
+ {
+ cpustate->sfr |= SUPERFX_SFR_IRQ;
+ cpustate->irq = 1;
+ cpustate->out_irq_func(cpustate->irq ? ASSERT_LINE : CLEAR_LINE );
+ }
+ cpustate->sfr &= ~SUPERFX_SFR_G;
+ cpustate->pipeline = 0x01;
+ superfx_regs_reset(cpustate);
+ break;
+ case 0x01: // NOP
+ superfx_regs_reset(cpustate);
+ break;
+ case 0x02: // CACHE
+ if(cpustate->cbr != (cpustate->r[15] & 0xfff0))
+ {
+ cpustate->cbr = cpustate->r[15] & 0xfff0;
+ superfx_cache_flush(cpustate);
+ }
+ superfx_regs_reset(cpustate);
+ break;
+ case 0x03: // LSR
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (*(cpustate->sreg) & 1) ? SUPERFX_SFR_CY : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) >> 1);
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+ case 0x04: // ROL
+ {
+ UINT16 carry = *(cpustate->sreg) & 0x8000;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (*(cpustate->sreg) << 1) | (SUPERFX_SFR_CY_SET ? 1 : 0));
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= carry ? SUPERFX_SFR_CY : 0;
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+ }
+ case 0x05: // BRA
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ break;
+ }
+ case 0x06: // BLT
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if((SUPERFX_SFR_S_SET ^ SUPERFX_SFR_OV_SET) == 0)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x07: // BGE
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if((SUPERFX_SFR_S_SET ^ SUPERFX_SFR_OV_SET) == 1)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x08: // BNE
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_Z_SET == 0)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x09: // BEQ
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_Z_SET == 1)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0a: // BPL
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_S_SET == 0)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0b: // BMI
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_S_SET == 1)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0c: // BCC
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_CY_SET == 0)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0d: // BCS
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_CY_SET == 1)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0e: // BVC
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_OV_SET == 0)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+ case 0x0f: // BVS
+ {
+ INT32 e = (INT8)superfx_pipe(cpustate);
+ if(SUPERFX_SFR_OV_SET == 1)
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[15] + e);
+ }
+ break;
+ }
+
+ case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17:
+ case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f: // TO
+ if((cpustate->sfr & SUPERFX_SFR_B) == 0)
+ {
+ cpustate->dreg = &cpustate->r[op & 0xf];
+ cpustate->dreg_idx = op & 0xf;
+ }
+ else
+ {
+ superfx_gpr_write(cpustate, op & 0xf, *(cpustate->sreg));
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27:
+ case 0x28: case 0x29: case 0x2a: case 0x2b: case 0x2c: case 0x2d: case 0x2e: case 0x2f: // WITH
+ cpustate->sreg = &cpustate->r[op & 0xf];
+ cpustate->sreg_idx = op & 0xf;
+ cpustate->dreg = &cpustate->r[op & 0xf];
+ cpustate->dreg_idx = op & 0xf;
+ cpustate->sfr |= SUPERFX_SFR_B;
+ break;
+
+ case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35:
+ case 0x36: case 0x37: case 0x38: case 0x39: case 0x3a: case 0x3b: // STW_IR / STB_IR
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // STW_IR
+ cpustate->ramaddr = cpustate->r[op & 0xf];
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 0, (*(cpustate->sreg)) >> 0);
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 1, (*(cpustate->sreg)) >> 8);
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // STB_IR
+ cpustate->ramaddr = cpustate->r[op & 0xf];
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr, *(cpustate->sreg));
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x3c: // LOOP
+ superfx_gpr_write(cpustate, 12, cpustate->r[12] - 1);
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (cpustate->r[12] & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (cpustate->r[12] == 0) ? SUPERFX_SFR_Z : 0;
+ if(!(cpustate->sfr & SUPERFX_SFR_Z))
+ {
+ superfx_gpr_write(cpustate, 15, cpustate->r[13]);
+ }
+ superfx_regs_reset(cpustate);
+ break;
+ case 0x3d: // ALT1
+ cpustate->sfr &= ~SUPERFX_SFR_B;
+ cpustate->sfr |= SUPERFX_SFR_ALT1;
+ break;
+ case 0x3e: // ALT2
+ cpustate->sfr &= ~SUPERFX_SFR_B;
+ cpustate->sfr |= SUPERFX_SFR_ALT2;
+ break;
+ case 0x3f: // ALT3
+ cpustate->sfr &= ~SUPERFX_SFR_B;
+ cpustate->sfr |= SUPERFX_SFR_ALT1;
+ cpustate->sfr |= SUPERFX_SFR_ALT2;
+ break;
+
+ case 0x40: case 0x41: case 0x42: case 0x43: case 0x44: case 0x45:
+ case 0x46: case 0x47: case 0x48: case 0x49: case 0x4a: case 0x4b: // LDW_IR / LDB_IR
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // LDW_IR
+ UINT16 data = 0;
+ cpustate->ramaddr = cpustate->r[op & 0xf];
+ data = superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 0) << 0;
+ data |= superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 1) << 8;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, data);
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // LDB_IR
+ cpustate->ramaddr = cpustate->r[op & 0xf];
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, superfx_rambuffer_read(cpustate, cpustate->ramaddr));
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x4c: // PLOT / RPIX
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // PLOT
+ superfx_plot(cpustate, cpustate->r[1], cpustate->r[2]);
+ superfx_gpr_write(cpustate, 1, cpustate->r[1] + 1);
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // RPIX
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, superfx_rpix(cpustate, cpustate->r[1], cpustate->r[2]));
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x4d: // SWAP
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (*(cpustate->sreg) >> 8) | (*(cpustate->sreg) << 8));
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x4e: // COLOR / CMODE
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // COLOR
+ cpustate->colr = superfx_color(cpustate, *(cpustate->sreg));
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // CMODE
+ cpustate->por = *(cpustate->sreg);
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x4f: // NOT
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, ~(*(cpustate->sreg)));
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x50: case 0x51: case 0x52: case 0x53: case 0x54: case 0x55: case 0x56: case 0x57:
+ case 0x58: case 0x59: case 0x5a: case 0x5b: case 0x5c: case 0x5d: case 0x5e: case 0x5f: // ADD / ADC / ADDI / ADCI
+ {
+ INT32 r = *(cpustate->sreg);
+ cpustate->sfr &= ~(SUPERFX_SFR_OV | SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // ADD
+ r += cpustate->r[op & 0xf];
+ cpustate->sfr |= (~(*(cpustate->sreg) ^ cpustate->r[op & 0xf]) & (cpustate->r[op & 0xf] ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ break;
+ case SUPERFX_SFR_ALT1: // ADC
+ r += cpustate->r[op & 0xf] + ((cpustate->sfr & SUPERFX_SFR_CY) ? 1 : 0);
+ cpustate->sfr |= (~(*(cpustate->sreg) ^ cpustate->r[op & 0xf]) & (cpustate->r[op & 0xf] ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ break;
+ case SUPERFX_SFR_ALT2: // ADDI
+ r += op & 0xf;
+ cpustate->sfr |= (~(*(cpustate->sreg) ^ (op & 0xf)) & ((op & 0xf) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ break;
+ case SUPERFX_SFR_ALT3: // ADCI
+ r += (op & 0xf) + ((cpustate->sfr & SUPERFX_SFR_CY) ? 1 : 0);
+ cpustate->sfr |= (~(*(cpustate->sreg) ^ (op & 0xf)) & ((op & 0xf) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ break;
+ }
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (r & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (r >= 0x10000) ? SUPERFX_SFR_CY : 0;
+ cpustate->sfr |= ((UINT16)r == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, r);
+ superfx_regs_reset(cpustate);
+ break;
+ }
+
+ case 0x60: case 0x61: case 0x62: case 0x63: case 0x64: case 0x65: case 0x66: case 0x67:
+ case 0x68: case 0x69: case 0x6a: case 0x6b: case 0x6c: case 0x6d: case 0x6e: case 0x6f: // SUB / SBC / SUBI / CMP
+ {
+ INT32 r = 0;
+ cpustate->sfr &= ~(SUPERFX_SFR_OV | SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // SUB
+ r = *(cpustate->sreg) - cpustate->r[op & 0xf];
+ cpustate->sfr |= ((*(cpustate->sreg) ^ cpustate->r[op & 0xf]) & (*(cpustate->sreg) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, r);
+ break;
+ case SUPERFX_SFR_ALT1: // SBC
+ r = *(cpustate->sreg) - cpustate->r[op & 0xf] - ((cpustate->sfr & SUPERFX_SFR_CY) ? 0 : 1);
+ cpustate->sfr |= ((*(cpustate->sreg) ^ cpustate->r[op & 0xf]) & (*(cpustate->sreg) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, r);
+ break;
+ case SUPERFX_SFR_ALT2: // SUBI
+ r = *(cpustate->sreg) - (op & 0xf);
+ cpustate->sfr |= ((*(cpustate->sreg) ^ (op & 0xf)) & (*(cpustate->sreg) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, r);
+ break;
+ case SUPERFX_SFR_ALT3: // CMP
+ r = *(cpustate->sreg) - cpustate->r[op & 0xf];
+ cpustate->sfr |= ((*(cpustate->sreg) ^ cpustate->r[op & 0xf]) & (*(cpustate->sreg) ^ r) & 0x8000) ? SUPERFX_SFR_OV : 0;
+ break;
+ }
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (r & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (r >= 0x0) ? SUPERFX_SFR_CY : 0;
+ cpustate->sfr |= ((UINT16)r == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+ }
+
+ case 0x70: // MERGE
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (cpustate->r[7] & 0xff00) | (cpustate->r[8] >> 8));
+ cpustate->sfr &= ~(SUPERFX_SFR_OV | SUPERFX_SFR_S | SUPERFX_SFR_CY | SUPERFX_SFR_Z);
+ cpustate->sfr |= (*(cpustate->dreg) & 0xc0c0) ? SUPERFX_SFR_OV : 0;
+ cpustate->sfr |= (*(cpustate->dreg) & 0x8080) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (*(cpustate->dreg) & 0xe0e0) ? SUPERFX_SFR_CY : 0;
+ cpustate->sfr |= (*(cpustate->dreg) & 0xf0f0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x71: case 0x72: case 0x73: case 0x74: case 0x75: case 0x76: case 0x77:
+ case 0x78: case 0x79: case 0x7a: case 0x7b: case 0x7c: case 0x7d: case 0x7e: case 0x7f: // AND / BIC / ANDI / BICI
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // AND
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) & cpustate->r[op & 0xf]);
+ break;
+ case SUPERFX_SFR_ALT1: // BIC
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) & ~cpustate->r[op & 0xf]);
+ break;
+ case SUPERFX_SFR_ALT2: // ANDI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) & (op & 0xf));
+ break;
+ case SUPERFX_SFR_ALT3: // BICI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) & ~(op & 0xf));
+ break;
+ }
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x80: case 0x81: case 0x82: case 0x83: case 0x84: case 0x85: case 0x86: case 0x87:
+ case 0x88: case 0x89: case 0x8a: case 0x8b: case 0x8c: case 0x8d: case 0x8e: case 0x8f: // MULT / UMULT / MULTI / UMULTI
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // MULT
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (INT8)(*(cpustate->sreg)) * (INT8)(cpustate->r[op & 0xf]));
+ break;
+ case SUPERFX_SFR_ALT1: // UMULT
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (UINT8)(*(cpustate->sreg)) * (UINT8)(cpustate->r[op & 0xf]));
+ break;
+ case SUPERFX_SFR_ALT2: // MULTI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (INT8)(*(cpustate->sreg)) * (INT8)(op & 0xf));
+ break;
+ case SUPERFX_SFR_ALT3: // UMULTI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (UINT8)(*(cpustate->sreg)) * (UINT8)(op & 0xf));
+ break;
+ }
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ if(!(cpustate->cfgr & SUPERFX_CFGR_MS0))
+ {
+ superfx_add_clocks_internal(cpustate, 2);
+ }
+ break;
+
+ case 0x90: // SBK
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 0, *(cpustate->sreg) >> 0);
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 1, *(cpustate->sreg) >> 8);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x91: case 0x92: case 0x93: case 0x94: // LINK
+ superfx_gpr_write(cpustate, 11, cpustate->r[15] + (op & 0xf));
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x95: // SEX
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (INT8)(*(cpustate->sreg)));
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x96: // ASR / DIV2
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // ASR
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (*(cpustate->sreg) & 1) ? SUPERFX_SFR_CY : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (INT16)(*(cpustate->sreg)) >> 1);
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // DIV2
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (*(cpustate->sreg) & 1) ? SUPERFX_SFR_CY : 0;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, ((INT16)(*(cpustate->sreg)) >> 1) + ((UINT32)(*(cpustate->sreg) + 1) >> 16));
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x97: // ROR
+ {
+ UINT16 carry = *(cpustate->sreg) & 1;
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (SUPERFX_SFR_CY_SET << 15) | ((UINT16)(*(cpustate->sreg)) >> 1));
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= carry ? SUPERFX_SFR_CY : 0;
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+ }
+
+ case 0x98: case 0x99: case 0x9a: case 0x9b: case 0x9c: case 0x9d: // JMP / LJMP
+ if((cpustate->sfr & SUPERFX_SFR_ALT1) == 0)
+ { // JMP
+ superfx_gpr_write(cpustate, 15, cpustate->r[op & 0xf]);
+ superfx_regs_reset(cpustate);
+ }
+ else
+ { // LJMP
+ cpustate->pbr = cpustate->r[op & 0xf] & 0x7f;
+ superfx_gpr_write(cpustate, 15, *(cpustate->sreg));
+ cpustate->cbr = cpustate->r[15] & 0xfff0;
+ superfx_cache_flush(cpustate);
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0x9e: // LOB
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (UINT16)(*(cpustate->sreg)) & 0x00ff);
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (*(cpustate->dreg) & 0x80) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (*(cpustate->dreg) == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0x9f: // FMULT / LMULT
+ {
+ UINT32 result = (INT16)(*(cpustate->sreg)) * (INT16)(cpustate->r[6]);
+ if(cpustate->sfr & SUPERFX_SFR_ALT1)
+ { // LMULT
+ superfx_gpr_write(cpustate, 4, result);
+ }
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, result >> 16);
+ cpustate->sfr &= ~SUPERFX_SFR_CY;
+ cpustate->sfr |= (result & 0x8000) ? SUPERFX_SFR_CY : 0;
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ superfx_add_clocks_internal(cpustate, 4 + ((cpustate->cfgr & SUPERFX_CFGR_MS0) ? 4 : 0));
+ break;
+ }
+
+ case 0xa0: case 0xa1: case 0xa2: case 0xa3: case 0xa4: case 0xa5: case 0xa6: case 0xa7:
+ case 0xa8: case 0xa9: case 0xaa: case 0xab: case 0xac: case 0xad: case 0xae: case 0xaf: // IBT / LMS / SMS / LMS
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // IBT
+ superfx_gpr_write(cpustate, op & 0xf, (INT8)superfx_pipe(cpustate));
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT2: // SMS
+ cpustate->ramaddr = superfx_pipe(cpustate) << 1;
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 0, cpustate->r[op & 0xf] >> 0);
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 1, cpustate->r[op & 0xf] >> 8);
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT1: // LMS
+ case SUPERFX_SFR_ALT3: // LMS
+ {
+ UINT16 data = 0;
+ cpustate->ramaddr = superfx_pipe(cpustate) << 1;
+ data = superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 0) << 0;
+ data |= superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 1) << 8;
+ superfx_gpr_write(cpustate, op & 0xf, data);
+ superfx_regs_reset(cpustate);
+ break;
+ }
+ }
+ break;
+
+ case 0xb0: case 0xb1: case 0xb2: case 0xb3: case 0xb4: case 0xb5: case 0xb6: case 0xb7:
+ case 0xb8: case 0xb9: case 0xba: case 0xbb: case 0xbc: case 0xbd: case 0xbe: case 0xbf: // FROM
+ if((cpustate->sfr & SUPERFX_SFR_B) == 0)
+ {
+ cpustate->sreg = &(cpustate->r[op & 0xf]);
+ cpustate->sreg_idx = op & 0xf;
+ }
+ else
+ {
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, cpustate->r[op & 0xf]);
+ cpustate->sfr &= ~SUPERFX_SFR_OV;
+ cpustate->sfr |= (*(cpustate->dreg) & 0x80) ? SUPERFX_SFR_OV : 0;
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ }
+ break;
+
+ case 0xc0: // HIB
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (*(cpustate->sreg)) >> 8);
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (*(cpustate->dreg) & 0x80) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (*(cpustate->dreg) == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0xc1: case 0xc2: case 0xc3: case 0xc4: case 0xc5: case 0xc6: case 0xc7:
+ case 0xc8: case 0xc9: case 0xca: case 0xcb: case 0xcc: case 0xcd: case 0xce: case 0xcf: // OR / XOR / ORI / XORI
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // OR
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) | cpustate->r[op & 0xf]);
+ break;
+ case SUPERFX_SFR_ALT1: // XOR
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) ^ cpustate->r[op & 0xf]);
+ break;
+ case SUPERFX_SFR_ALT2: // ORI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) | (op & 0xf));
+ break;
+ case SUPERFX_SFR_ALT3: // XORI
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, *(cpustate->sreg) ^ (op & 0xf));
+ break;
+ }
+ superfx_dreg_sfr_sz_update(cpustate);
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0xd0: case 0xd1: case 0xd2: case 0xd3: case 0xd4: case 0xd5: case 0xd6: case 0xd7:
+ case 0xd8: case 0xd9: case 0xda: case 0xdb: case 0xdc: case 0xdd: case 0xde: // INC
+ superfx_gpr_write(cpustate, op & 0xf, cpustate->r[op & 0xf] + 1);
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (cpustate->r[op & 0xf] & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (cpustate->r[op & 0xf] == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0xdf: // GETC / RAMB / ROMB
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // GETC
+ case SUPERFX_SFR_ALT1: // GETC
+ cpustate->colr = superfx_color(cpustate, superfx_rombuffer_read(cpustate));
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT2: // RAMB
+ superfx_rambuffer_sync(cpustate);
+ cpustate->rambr = ((*(cpustate->sreg)) & 1) ? 1 : 0;
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT3: // ROMB
+ superfx_rombuffer_sync(cpustate);
+ cpustate->rombr = *(cpustate->sreg) & 0x7f;
+ superfx_regs_reset(cpustate);
+ break;
+ }
+ break;
+
+ case 0xe0: case 0xe1: case 0xe2: case 0xe3: case 0xe4: case 0xe5: case 0xe6: case 0xe7:
+ case 0xe8: case 0xe9: case 0xea: case 0xeb: case 0xec: case 0xed: case 0xee: // DEC
+ superfx_gpr_write(cpustate, op & 0xf, cpustate->r[op & 0xf] - 1);
+ cpustate->sfr &= ~(SUPERFX_SFR_S | SUPERFX_SFR_Z);
+ cpustate->sfr |= (cpustate->r[op & 0xf] & 0x8000) ? SUPERFX_SFR_S : 0;
+ cpustate->sfr |= (cpustate->r[op & 0xf] == 0) ? SUPERFX_SFR_Z : 0;
+ superfx_regs_reset(cpustate);
+ break;
+
+ case 0xef: // GETB / GETBH / GETBL / GETBS
+ {
+ UINT8 byte = superfx_rombuffer_read(cpustate);
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // GETB
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, byte);
+ break;
+ case SUPERFX_SFR_ALT1: // GETBH
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (byte << 8) | (*(cpustate->sreg) & 0x00ff));
+ break;
+ case SUPERFX_SFR_ALT2: // GETBL
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (*(cpustate->sreg) & 0xff00) | (byte << 0));
+ break;
+ case SUPERFX_SFR_ALT3: // GETBS
+ superfx_gpr_write(cpustate, cpustate->dreg_idx, (INT8)byte);
+ break;
+ }
+ superfx_regs_reset(cpustate);
+ break;
+ }
+
+ case 0xf0: case 0xf1: case 0xf2: case 0xf3: case 0xf4: case 0xf5: case 0xf6: case 0xf7:
+ case 0xf8: case 0xf9: case 0xfa: case 0xfb: case 0xfc: case 0xfd: case 0xfe: case 0xff: // IWT / LM / SM / LM
+ {
+ UINT16 data;
+ switch(cpustate->sfr & SUPERFX_SFR_ALT)
+ {
+ case SUPERFX_SFR_ALT0: // IWT
+ data = superfx_pipe(cpustate) << 0;
+ data |= superfx_pipe(cpustate) << 8;
+ superfx_gpr_write(cpustate, op & 0xf, data);
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT2: // SM
+ cpustate->ramaddr = superfx_pipe(cpustate) << 0;
+ cpustate->ramaddr |= superfx_pipe(cpustate) << 8;
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 0, cpustate->r[op & 0xf] >> 0);
+ superfx_rambuffer_write(cpustate, cpustate->ramaddr ^ 1, cpustate->r[op & 0xf] >> 8);
+ superfx_regs_reset(cpustate);
+ break;
+ case SUPERFX_SFR_ALT1:
+ case SUPERFX_SFR_ALT3: // LM
+ cpustate->ramaddr = superfx_pipe(cpustate) << 0;
+ cpustate->ramaddr |= superfx_pipe(cpustate) << 8;
+ data = superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 0) << 0;
+ data |= superfx_rambuffer_read(cpustate, cpustate->ramaddr ^ 1) << 8;
+ superfx_gpr_write(cpustate, op & 0xf, data);
+ superfx_regs_reset(cpustate);
+ break;
+ }
+ break;
+ }
+ }
+
+ if(!cpustate->r15_modified)
+ {
+ cpustate->r[15]++;
+ }
+
+ //printf( " r0:%04x r1:%04x r2:%04x r3:%04x r4:%04x r5:%04x r6:%04x r7:%04x\n", cpustate->r[0], cpustate->r[1], cpustate->r[2], cpustate->r[3], cpustate->r[4], cpustate->r[5], cpustate->r[6], cpustate->r[7] );
+ //printf( " r8:%04x r9:%04x r10:%04x r11:%04x r12:%04x r13:%04x r14:%04x r15:%04x\n", cpustate->r[8], cpustate->r[9], cpustate->r[10], cpustate->r[11], cpustate->r[12], cpustate->r[13], cpustate->r[14], cpustate->r[15] );
+ //printf( "sfr:%04x\n", cpustate->sfr );
+
+ --cpustate->icount;
+ }
+}
+
+/*****************************************************************************/
+
+CPU_DISASSEMBLE( superfx )
+{
+ superfx_state *cpustate = get_safe_token(device);
+
+ UINT8 op = *(UINT8 *)(opram + 0);
+ UINT8 param0 = *(UINT8 *)(opram + 1);
+ UINT8 param1 = *(UINT8 *)(opram + 2);
+ UINT16 alt = cpustate->sfr & SUPERFX_SFR_ALT;
+
+ return superfx_dasm_one(buffer, pc, op, param0, param1, alt);
+}
+
+/*****************************************************************************/
+
+static CPU_SET_INFO( superfx )
+{
+ superfx_state *cpustate = get_safe_token(device);
+
+ switch (state)
+ {
+ /* --- the following bits of info are set as 64-bit signed integers --- */
+ case CPUINFO_INT_PC:
+ case CPUINFO_INT_REGISTER + SUPERFX_PC: cpustate->r[15] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_DREG: info->i = cpustate->dreg_idx; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SREG: info->i = cpustate->sreg_idx; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R0: cpustate->r[0] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R1: cpustate->r[1] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R2: cpustate->r[2] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R3: cpustate->r[3] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R4: cpustate->r[4] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R5: cpustate->r[5] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R6: cpustate->r[6] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R7: cpustate->r[7] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R8: cpustate->r[8] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R9: cpustate->r[9] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R10: cpustate->r[10] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R11: cpustate->r[11] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R12: cpustate->r[12] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R13: cpustate->r[13] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R14: cpustate->r[14] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R15: cpustate->r[15] = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SFR: cpustate->sfr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_PBR: cpustate->pbr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMBR: cpustate->rombr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMBR: cpustate->rambr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CBR: cpustate->cbr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SCBR: cpustate->scbr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SCMR: cpustate->scmr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_COLR: cpustate->colr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_POR: cpustate->por = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_BRAMR: cpustate->bramr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_VCR: cpustate->vcr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CFGR: cpustate->cfgr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CLSR: cpustate->clsr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMCL: cpustate->romcl = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMDR: cpustate->romdr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMCL: cpustate->ramcl = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMAR: cpustate->ramar = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMDR: cpustate->ramdr = info->i; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMADDR: cpustate->ramaddr = info->i; break;
+ }
+}
+
+CPU_GET_INFO( superfx )
+{
+ superfx_state *cpustate = (device != NULL && device->token() != NULL) ? get_safe_token(device) : NULL;
+
+ switch(state)
+ {
+ /* --- the following bits of info are returned as 64-bit signed integers --- */
+ case CPUINFO_INT_CONTEXT_SIZE: info->i = sizeof(superfx_state); break;
+ case CPUINFO_INT_INPUT_LINES: info->i = 0; break;
+ case CPUINFO_INT_DEFAULT_IRQ_VECTOR: info->i = 0; break;
+ case DEVINFO_INT_ENDIANNESS: info->i = ENDIANNESS_LITTLE; break;
+ case CPUINFO_INT_CLOCK_MULTIPLIER: info->i = 1; break;
+ case CPUINFO_INT_CLOCK_DIVIDER: info->i = 1; break;
+ case CPUINFO_INT_MIN_INSTRUCTION_BYTES: info->i = 1; break;
+ case CPUINFO_INT_MAX_INSTRUCTION_BYTES: info->i = 3; break;
+ case CPUINFO_INT_MIN_CYCLES: info->i = 1; break;
+ case CPUINFO_INT_MAX_CYCLES: info->i = 1; break;
+
+ case DEVINFO_INT_DATABUS_WIDTH + AS_PROGRAM: info->i = 8; break;
+ case DEVINFO_INT_ADDRBUS_WIDTH + AS_PROGRAM: info->i = 32; break;
+ case DEVINFO_INT_ADDRBUS_SHIFT + AS_PROGRAM: info->i = 0; break;
+ case DEVINFO_INT_DATABUS_WIDTH + AS_DATA: info->i = 0; break;
+ case DEVINFO_INT_ADDRBUS_WIDTH + AS_DATA: info->i = 0; break;
+ case DEVINFO_INT_ADDRBUS_SHIFT + AS_DATA: info->i = 0; break;
+ case DEVINFO_INT_DATABUS_WIDTH + AS_IO: info->i = 0; break;
+ case DEVINFO_INT_ADDRBUS_WIDTH + AS_IO: info->i = 0; break;
+ case DEVINFO_INT_ADDRBUS_SHIFT + AS_IO: info->i = 0; break;
+
+ case CPUINFO_INT_PC: /* intentional fallthrough */
+ case CPUINFO_INT_REGISTER + SUPERFX_PC: info->i = ((cpustate->pbr << 16) | cpustate->r[15]) - 1; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_DREG: info->i = cpustate->dreg_idx; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SREG: info->i = cpustate->sreg_idx; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R0: info->i = cpustate->r[0]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R1: info->i = cpustate->r[1]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R2: info->i = cpustate->r[2]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R3: info->i = cpustate->r[3]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R4: info->i = cpustate->r[4]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R5: info->i = cpustate->r[5]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R6: info->i = cpustate->r[6]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R7: info->i = cpustate->r[7]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R8: info->i = cpustate->r[8]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R9: info->i = cpustate->r[9]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R10: info->i = cpustate->r[10]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R11: info->i = cpustate->r[11]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R12: info->i = cpustate->r[12]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R13: info->i = cpustate->r[13]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R14: info->i = cpustate->r[14]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_R15: info->i = cpustate->r[15]; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SFR: info->i = cpustate->sfr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_PBR: info->i = cpustate->sfr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMBR: info->i = cpustate->rombr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMBR: info->i = cpustate->rambr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CBR: info->i = cpustate->cbr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SCBR: info->i = cpustate->scbr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_SCMR: info->i = cpustate->scmr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_COLR: info->i = cpustate->colr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_POR: info->i = cpustate->por; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_BRAMR: info->i = cpustate->bramr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_VCR: info->i = cpustate->vcr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CFGR: info->i = cpustate->cfgr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_CLSR: info->i = cpustate->clsr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMCL: info->i = cpustate->romcl; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_ROMDR: info->i = cpustate->romdr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMCL: info->i = cpustate->ramcl; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMAR: info->i = cpustate->ramar; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMDR: info->i = cpustate->ramdr; break;
+ case CPUINFO_INT_REGISTER + SUPERFX_RAMADDR: info->i = cpustate->ramaddr; break;
+
+ /* --- the following bits of info are returned as pointers to data or functions --- */
+ case CPUINFO_FCT_SET_INFO: info->setinfo = CPU_SET_INFO_NAME(superfx); break;
+ case CPUINFO_FCT_INIT: info->init = CPU_INIT_NAME(superfx); break;
+ case CPUINFO_FCT_RESET: info->reset = CPU_RESET_NAME(superfx); break;
+ case CPUINFO_FCT_EXIT: info->exit = CPU_EXIT_NAME(superfx); break;
+ case CPUINFO_FCT_EXECUTE: info->execute = CPU_EXECUTE_NAME(superfx); break;
+ case CPUINFO_FCT_BURN: info->burn = NULL; break;
+ case CPUINFO_FCT_DISASSEMBLE: info->disassemble = CPU_DISASSEMBLE_NAME(superfx); break;
+ case CPUINFO_PTR_INSTRUCTION_COUNTER: info->icount = &cpustate->icount; break;
+
+ /* --- the following bits of info are returned as NULL-terminated strings --- */
+ case DEVINFO_STR_NAME: strcpy(info->s, "SuperFX"); break;
+ case DEVINFO_STR_FAMILY: strcpy(info->s, "SuperFX"); break;
+ case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
+ case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
+ case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
+
+ case CPUINFO_STR_FLAGS: strcpy(info->s, " "); break;
+
+ case CPUINFO_STR_REGISTER + SUPERFX_PC: sprintf(info->s, "PC: %06X", (cpustate->pbr << 16) | cpustate->r[15]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_DREG: sprintf(info->s, "DREG: R%d", cpustate->dreg_idx); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_SREG: sprintf(info->s, "SREG: R%d", cpustate->sreg_idx); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R0: sprintf(info->s, "R0: %04X", cpustate->r[0]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R1: sprintf(info->s, "R1: %04X", cpustate->r[1]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R2: sprintf(info->s, "R2: %04X", cpustate->r[2]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R3: sprintf(info->s, "R3: %04X", cpustate->r[3]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R4: sprintf(info->s, "R4: %04X", cpustate->r[4]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R5: sprintf(info->s, "R5: %04X", cpustate->r[5]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R6: sprintf(info->s, "R6: %04X", cpustate->r[6]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R7: sprintf(info->s, "R7: %04X", cpustate->r[7]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R8: sprintf(info->s, "R8: %04X", cpustate->r[8]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R9: sprintf(info->s, "R9: %04X", cpustate->r[9]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R10: sprintf(info->s, "R10: %04X", cpustate->r[10]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R11: sprintf(info->s, "R11: %04X", cpustate->r[11]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R12: sprintf(info->s, "R12: %04X", cpustate->r[12]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R13: sprintf(info->s, "R13: %04X", cpustate->r[13]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R14: sprintf(info->s, "R14: %04X", cpustate->r[14]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_R15: sprintf(info->s, "R15: %04X", cpustate->r[15]); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_SFR: sprintf(info->s, "SFR: %04X", cpustate->sfr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_PBR: sprintf(info->s, "PBR: %02X", cpustate->sfr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_ROMBR: sprintf(info->s, "ROMBR: %02X", cpustate->rombr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_RAMBR: sprintf(info->s, "RAMBR: %02X", cpustate->rambr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_CBR: sprintf(info->s, "CBR: %04X", cpustate->cbr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_SCBR: sprintf(info->s, "SCBR: %02X", cpustate->scbr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_SCMR: sprintf(info->s, "SCMR: %02X", cpustate->scmr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_COLR: sprintf(info->s, "COLR %02X", cpustate->colr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_POR: sprintf(info->s, "POR: %02X", cpustate->por); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_BRAMR: sprintf(info->s, "BRAMR: %02X", cpustate->bramr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_VCR: sprintf(info->s, "VCR: %02X", cpustate->vcr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_CFGR: sprintf(info->s, "CFGR: %02X", cpustate->cfgr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_CLSR: sprintf(info->s, "CLSR: %02X", cpustate->clsr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_ROMCL: sprintf(info->s, "ROMCL: %08X", cpustate->romcl); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_ROMDR: sprintf(info->s, "ROMDR: %02X", cpustate->romdr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_RAMCL: sprintf(info->s, "RAMCL: %08X", cpustate->ramcl); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_RAMAR: sprintf(info->s, "RAMAR: %04X", cpustate->ramar); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_RAMDR: sprintf(info->s, "RAMDR: %02X", cpustate->ramdr); break;
+ case CPUINFO_STR_REGISTER + SUPERFX_RAMADDR: sprintf(info->s, "RAMADDR: %04X", cpustate->ramaddr); break;
+ }
+}
+
+DEFINE_LEGACY_CPU_DEVICE(SUPERFX, superfx);