From fa8fb7544593a0ed43f3354cc5f41150464b55bf Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 13 Sep 2013 03:06:33 +0300 Subject: [PATCH] handle 32x+cd --- Makefile | 2 +- pico/32x/32x.c | 12 ++- pico/32x/memory.c | 209 ++++++++++++++++++++++++++++-------------- pico/cd/mcd.c | 4 +- pico/cd/memory.c | 21 ++--- pico/cd/memory_arm.s | 16 ++-- pico/media.c | 2 + pico/pico.c | 9 +- pico/pico_cmn.c | 9 +- pico/pico_int.h | 8 +- platform/common/emu.c | 4 + 11 files changed, 192 insertions(+), 104 deletions(-) diff --git a/Makefile b/Makefile index 9a9c9f1..cef431c 100644 --- a/Makefile +++ b/Makefile @@ -183,5 +183,5 @@ pico/carthw/svp/compiler.o : cpu/drc/emit_$(ARCH).c cpu/sh2/compiler.o : cpu/drc/emit_$(ARCH).c cpu/sh2/mame/sh2pico.o : cpu/sh2/mame/sh2.c pico/pico.o pico/cd/mcd.o pico/32x/32x.o : pico/pico_cmn.c pico/pico_int.h -pico/memory.o pico/cd/memory.o : pico/pico_int.h pico/memory.h +pico/memory.o pico/cd/memory.o pico/32x/memory.o : pico/pico_int.h pico/memory.h cpu/fame/famec.o: cpu/fame/famec.c cpu/fame/famec_opcodes.h diff --git a/pico/32x/32x.c b/pico/32x/32x.c index 92d5216..e95fccd 100644 --- a/pico/32x/32x.c +++ b/pico/32x/32x.c @@ -109,6 +109,10 @@ void Pico32xStartup(void) p32x_pwm_ctl_changed(); p32x_timers_recalc(); + Pico32x.sh2_regs[0] = P32XS2_ADEN; + if (Pico.m.ncart_in) + Pico32x.sh2_regs[0] |= P32XS_nCART; + if (!Pico.m.pal) Pico32x.vdp_regs[0] |= P32XV_nPAL; @@ -183,7 +187,6 @@ void PicoPower32x(void) Pico32x.regs[0] = P32XS_REN|P32XS_nRES; // verified Pico32x.vdp_regs[0x0a/2] = P32XV_VBLK|P32XV_PEN; - Pico32x.sh2_regs[0] = P32XS2_ADEN; } void PicoUnload32x(void) @@ -516,7 +519,11 @@ void sync_sh2s_lockstep(unsigned int m68k_target) } #define CPUS_RUN(m68k_cycles) do { \ - SekRunM68k(m68k_cycles); \ + if (PicoAHW & PAHW_MCD) \ + pcd_run_cpus(m68k_cycles); \ + else \ + SekRunM68k(m68k_cycles); \ + \ if ((Pico32x.emu_flags & P32XF_Z80_32X_IO) && Pico.m.z80Run \ && !Pico.m.z80_reset && (PicoOpt & POPT_EN_Z80)) \ PicoSyncZ80(SekCyclesDone()); \ @@ -525,6 +532,7 @@ void sync_sh2s_lockstep(unsigned int m68k_target) } while (0) #define PICO_32X +#define PICO_CD #include "../pico_cmn.c" void PicoFrame32x(void) diff --git a/pico/32x/memory.c b/pico/32x/memory.c index 722698e..8b9254f 100644 --- a/pico/32x/memory.c +++ b/pico/32x/memory.c @@ -786,8 +786,12 @@ static u32 PicoRead8_32x_on(u32 a) goto out_16to8; } - if ((a & 0xfc00) != 0x5000) - return PicoRead8_io(a); + if ((a & 0xfc00) != 0x5000) { + if (PicoAHW & PAHW_MCD) + return PicoRead8_mcd_io(a); + else + return PicoRead8_io(a); + } if ((a & 0xfff0) == 0x5180) { // a15180 d = p32x_vdp_read16(a); @@ -826,8 +830,12 @@ static u32 PicoRead16_32x_on(u32 a) goto out; } - if ((a & 0xfc00) != 0x5000) - return PicoRead16_io(a); + if ((a & 0xfc00) != 0x5000) { + if (PicoAHW & PAHW_MCD) + return PicoRead16_mcd_io(a); + else + return PicoRead16_io(a); + } if ((a & 0xfff0) == 0x5180) { // a15180 d = p32x_vdp_read16(a); @@ -863,7 +871,10 @@ static void PicoWrite8_32x_on(u32 a, u32 d) } if ((a & 0xfc00) != 0x5000) { - PicoWrite8_io(a, d); + if (PicoAHW & PAHW_MCD) + PicoWrite8_mcd_io(a, d); + else + PicoWrite8_io(a, d); if (a == 0xa130f1) bank_switch(Pico32x.regs[4 / 2]); return; @@ -898,7 +909,10 @@ static void PicoWrite16_32x_on(u32 a, u32 d) } if ((a & 0xfc00) != 0x5000) { - PicoWrite16_io(a, d); + if (PicoAHW & PAHW_MCD) + PicoWrite16_mcd_io(a, d); + else + PicoWrite16_io(a, d); if (a == 0xa130f0) bank_switch(Pico32x.regs[4 / 2]); return; @@ -1141,6 +1155,9 @@ static void bank_switch(int b) { unsigned int rs, bank; + if (Pico.m.ncart_in) + return; + bank = b << 20; if ((Pico.m.sram_reg & SRR_MAPPED) && bank == SRam.start) { bank_map_handler(); @@ -1536,42 +1553,94 @@ static void z80_md_bank_write_32x(unsigned int a, unsigned char d) static const u16 msh2_code[] = { // trap instructions - 0xaffe, // bra - 0x0009, // nop + 0xaffe, // 200 bra + 0x0009, // 202 nop // have to wait a bit until m68k initial program finishes clearing stuff // to avoid races with game SH2 code, like in Tempo - 0xd004, // mov.l @(_m_ok,pc), r0 - 0xd105, // mov.l @(_cnt,pc), r1 - 0xd205, // mov.l @(_start,pc), r2 - 0x71ff, // add #-1, r1 - 0x4115, // cmp/pl r1 - 0x89fc, // bt -2 - 0xc208, // mov.l r0, @(h'20,gbr) - 0x6822, // mov.l @r2, r8 - 0x482b, // jmp @r8 - 0x0009, // nop - ('M'<<8)|'_', ('O'<<8)|'K', - 0x0001, 0x0000, - 0x2200, 0x03e0 // master start pointer in ROM + 0xd406, // 204 mov.l @(_m_ok,pc), r4 + 0xc400, // 206 mov.b @(h'0,gbr),r0 + 0xc801, // 208 tst #1, r0 + 0x8b0f, // 20a bf cd_start + 0xd105, // 20c mov.l @(_cnt,pc), r1 + 0xd206, // 20e mov.l @(_start,pc), r2 + 0x71ff, // 210 add #-1, r1 + 0x4115, // 212 cmp/pl r1 + 0x89fc, // 214 bt -2 + 0x6043, // 216 mov r4, r0 + 0xc208, // 218 mov.l r0, @(h'20,gbr) + 0x6822, // 21a mov.l @r2, r8 + 0x482b, // 21c jmp @r8 + 0x0009, // 21e nop + ('M'<<8)|'_', ('O'<<8)|'K', // 220 _m_ok + 0x0001, 0x0000, // 224 _cnt + 0x2200, 0x03e0, // master start pointer in ROM + // cd_start: + 0xd20d, // 22c mov.l @(__cd_,pc), r2 + 0xc608, // 22e mov.l @(h'20,gbr), r0 + 0x3200, // 230 cmp/eq r0, r2 + 0x8bfc, // 232 bf #-2 + 0xe000, // 234 mov #0, r0 + 0xcf80, // 236 or.b #0x80,@(r0,gbr) + 0xd80b, // 238 mov.l @(_start_cd,pc), r8 // 24000018 + 0xd30c, // 23a mov.l @(_max_len,pc), r3 + 0x5b84, // 23c mov.l @(h'10,r8), r11 // master vbr + 0x5a82, // 23e mov.l @(8,r8), r10 // entry + 0x5081, // 240 mov.l @(4,r8), r0 // len + 0x5980, // 242 mov.l @(0,r8), r9 // dst + 0x3036, // 244 cmp/hi r3,r0 + 0x8b00, // 246 bf #1 + 0x6033, // 248 mov r3,r0 + 0x7820, // 24a add #0x20, r8 + // ipl_copy: + 0x6286, // 24c mov.l @r8+, r2 + 0x2922, // 24e mov.l r2, @r9 + 0x7904, // 250 add #4, r9 + 0x70fc, // 252 add #-4, r0 + 0x8800, // 254 cmp/eq #0, r0 + 0x8bf9, // 256 bf #-5 + // + 0x4b2e, // 258 ldc r11, vbr + 0x6043, // 25a mov r4, r0 // M_OK + 0xc208, // 25c mov.l r0, @(h'20,gbr) + 0x4a2b, // 25e jmp @r10 + 0x0009, // 260 nop + 0x0009, // 262 nop // pad + ('_'<<8)|'C', ('D'<<8)|'_', // 264 __cd_ + 0x2400, 0x0018, // 268 _start_cd + 0x0001, 0xffe0, // 26c _max_len }; static const u16 ssh2_code[] = { - 0xaffe, // bra - 0x0009, // nop + 0xaffe, // 200 bra + 0x0009, // 202 nop // code to wait for master, in case authentic master BIOS is used - 0xd104, // mov.l @(_m_ok,pc), r1 - 0xd206, // mov.l @(_start,pc), r2 - 0xc608, // mov.l @(h'20,gbr), r0 - 0x3100, // cmp/eq r0, r1 - 0x8bfc, // bf #-2 - 0xd003, // mov.l @(_s_ok,pc), r0 - 0xc209, // mov.l r0, @(h'24,gbr) - 0x6822, // mov.l @r2, r8 - 0x482b, // jmp @r8 - 0x0009, // nop - ('M'<<8)|'_', ('O'<<8)|'K', - ('S'<<8)|'_', ('O'<<8)|'K', - 0x2200, 0x03e4 // slave start pointer in ROM + 0xd106, // 204 mov.l @(_m_ok,pc), r1 + 0xd208, // 206 mov.l @(_start,pc), r2 + 0xc608, // 208 mov.l @(h'20,gbr), r0 + 0x3100, // 20a cmp/eq r0, r1 + 0x8bfc, // 20c bf #-2 + 0xc400, // 20e mov.b @(h'0,gbr),r0 + 0xc801, // 210 tst #1, r0 + 0xd004, // 212 mov.l @(_s_ok,pc), r0 + 0x8b0a, // 214 bf cd_start + 0xc209, // 216 mov.l r0, @(h'24,gbr) + 0x6822, // 218 mov.l @r2, r8 + 0x482b, // 21a jmp @r8 + 0x0009, // 21c nop + 0x0009, // 21e nop + ('M'<<8)|'_', ('O'<<8)|'K', // 220 + ('S'<<8)|'_', ('O'<<8)|'K', // 224 + 0x2200, 0x03e4, // slave start pointer in ROM + // cd_start: + 0xd803, // 22c mov.l @(_start_cd,pc), r8 // 24000018 + 0x5b85, // 22e mov.l @(h'14,r8), r11 // slave vbr + 0x5a83, // 230 mov.l @(h'0c,r8), r10 // entry + 0x4b2e, // 232 ldc r11, vbr + 0xc209, // 234 mov.l r0, @(h'24,gbr) // write S_OK + 0x4a2b, // 236 jmp @r10 + 0x0009, // 238 nop + 0x0009, // 23a nop + 0x2400, 0x0018, // 23c _start_cd }; #define HWSWAP(x) (((u16)(x) << 16) | ((x) >> 16)) @@ -1622,13 +1691,13 @@ static void get_bios(void) for (i = 0; i < 128; i++) pl[i] = HWSWAP(0x200); - // startup code - memcpy(&Pico32xMem->sh2_rom_m.b[0x200], msh2_code, sizeof(msh2_code)); - - // reset SP - pl[1] = pl[3] = HWSWAP(0x6040000); // start pl[0] = pl[2] = HWSWAP(0x204); + // reset SP + pl[1] = pl[3] = HWSWAP(0x6040000); + + // startup code + memcpy(&Pico32xMem->sh2_rom_m.b[0x200], msh2_code, sizeof(msh2_code)); } // SSH2 @@ -1643,13 +1712,13 @@ static void get_bios(void) for (i = 0; i < 128; i++) pl[i] = HWSWAP(0x200); - // startup code - memcpy(&Pico32xMem->sh2_rom_s.b[0x200], ssh2_code, sizeof(ssh2_code)); - - // reset SP - pl[1] = pl[3] = HWSWAP(0x603f800); // start pl[0] = pl[2] = HWSWAP(0x204); + // reset SP + pl[1] = pl[3] = HWSWAP(0x603f800); + + // startup code + memcpy(&Pico32xMem->sh2_rom_s.b[0x200], ssh2_code, sizeof(ssh2_code)); } } @@ -1697,32 +1766,34 @@ void PicoMemSetup32x(void) // so that we can avoid handling the RV bit. // m68k_map_unmap(0x000000, 0x3fffff); - // MD ROM area - rs = sizeof(Pico32xMem->m68k_rom_bank); - cpu68k_map_set(m68k_read8_map, 0x000000, rs - 1, Pico32xMem->m68k_rom_bank, 0); - cpu68k_map_set(m68k_read16_map, 0x000000, rs - 1, Pico32xMem->m68k_rom_bank, 0); - cpu68k_map_set(m68k_write8_map, 0x000000, rs - 1, PicoWrite8_hint, 1); // TODO verify - cpu68k_map_set(m68k_write16_map, 0x000000, rs - 1, PicoWrite16_hint, 1); - - // 32X ROM (unbanked, XXX: consider mirroring?) - rs = (Pico.romsize + M68K_BANK_MASK) & ~M68K_BANK_MASK; - if (rs > 0x80000) - rs = 0x80000; - cpu68k_map_set(m68k_read8_map, 0x880000, 0x880000 + rs - 1, Pico.rom, 0); - cpu68k_map_set(m68k_read16_map, 0x880000, 0x880000 + rs - 1, Pico.rom, 0); - cpu68k_map_set(m68k_write8_map, 0x880000, 0x880000 + rs - 1, PicoWrite8_cart, 1); - cpu68k_map_set(m68k_write16_map, 0x880000, 0x880000 + rs - 1, PicoWrite16_cart, 1); + if (!Pico.m.ncart_in) { + // MD ROM area + rs = sizeof(Pico32xMem->m68k_rom_bank); + cpu68k_map_set(m68k_read8_map, 0x000000, rs - 1, Pico32xMem->m68k_rom_bank, 0); + cpu68k_map_set(m68k_read16_map, 0x000000, rs - 1, Pico32xMem->m68k_rom_bank, 0); + cpu68k_map_set(m68k_write8_map, 0x000000, rs - 1, PicoWrite8_hint, 1); // TODO verify + cpu68k_map_set(m68k_write16_map, 0x000000, rs - 1, PicoWrite16_hint, 1); + + // 32X ROM (unbanked, XXX: consider mirroring?) + rs = (Pico.romsize + M68K_BANK_MASK) & ~M68K_BANK_MASK; + if (rs > 0x80000) + rs = 0x80000; + cpu68k_map_set(m68k_read8_map, 0x880000, 0x880000 + rs - 1, Pico.rom, 0); + cpu68k_map_set(m68k_read16_map, 0x880000, 0x880000 + rs - 1, Pico.rom, 0); + cpu68k_map_set(m68k_write8_map, 0x880000, 0x880000 + rs - 1, PicoWrite8_cart, 1); + cpu68k_map_set(m68k_write16_map, 0x880000, 0x880000 + rs - 1, PicoWrite16_cart, 1); #ifdef EMU_F68K - // setup FAME fetchmap - PicoCpuFM68k.Fetch[0] = (unsigned long)Pico32xMem->m68k_rom; - for (rs = 0x88; rs < 0x90; rs++) - PicoCpuFM68k.Fetch[rs] = (unsigned long)Pico.rom - 0x880000; + // setup FAME fetchmap + PicoCpuFM68k.Fetch[0] = (unsigned long)Pico32xMem->m68k_rom; + for (rs = 0x88; rs < 0x90; rs++) + PicoCpuFM68k.Fetch[rs] = (unsigned long)Pico.rom - 0x880000; #endif - // 32X ROM (banked) - bank_switch(0); - cpu68k_map_set(m68k_write8_map, 0x900000, 0x9fffff, PicoWrite8_bank, 1); - cpu68k_map_set(m68k_write16_map, 0x900000, 0x9fffff, PicoWrite16_bank, 1); + // 32X ROM (banked) + bank_switch(0); + cpu68k_map_set(m68k_write8_map, 0x900000, 0x9fffff, PicoWrite8_bank, 1); + cpu68k_map_set(m68k_write16_map, 0x900000, 0x9fffff, PicoWrite16_bank, 1); + } // SYS regs cpu68k_map_set(m68k_read8_map, 0xa10000, 0xa1ffff, PicoRead8_32x_on, 1); diff --git a/pico/cd/mcd.c b/pico/cd/mcd.c index 323d482..04c6156 100644 --- a/pico/cd/mcd.c +++ b/pico/cd/mcd.c @@ -250,7 +250,7 @@ int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync) static void SekSyncM68k(void); -static inline void pcd_run_cpus_normal(int m68k_cycles) +void pcd_run_cpus_normal(int m68k_cycles) { SekCycleAim += m68k_cycles; if (SekShouldInterrupt() || Pico_mcd->m.m68k_poll_cnt < 12) @@ -269,7 +269,7 @@ static inline void pcd_run_cpus_normal(int m68k_cycles) SekSyncM68k(); } -static inline void pcd_run_cpus_lockstep(int m68k_cycles) +void pcd_run_cpus_lockstep(int m68k_cycles) { unsigned int target = SekCycleAim + m68k_cycles; do { diff --git a/pico/cd/memory.c b/pico/cd/memory.c index 47553f5..1d844da 100644 --- a/pico/cd/memory.c +++ b/pico/cd/memory.c @@ -28,11 +28,6 @@ MAKE_68K_WRITE32(s68k_write32, s68k_write16_map) // provided by ASM code: #ifdef _ASM_CD_MEMORY_C -u32 PicoReadM68k8_io(u32 a); -u32 PicoReadM68k16_io(u32 a); -void PicoWriteM68k8_io(u32 a, u32 d); -void PicoWriteM68k16_io(u32 a, u32 d); - u32 PicoReadS68k8_pr(u32 a); u32 PicoReadS68k16_pr(u32 a); void PicoWriteS68k8_pr(u32 a, u32 d); @@ -566,7 +561,7 @@ static void PicoWriteM68k16_ramc(u32 a, u32 d) // IO/control/cd registers (a10000 - ...) #ifndef _ASM_CD_MEMORY_C -static u32 PicoReadM68k8_io(u32 a) +u32 PicoRead8_mcd_io(u32 a) { u32 d; if ((a & 0xff00) == 0x2000) { // a12000 - a120ff @@ -583,7 +578,7 @@ static u32 PicoReadM68k8_io(u32 a) return PicoRead8_io(a); } -static u32 PicoReadM68k16_io(u32 a) +u32 PicoRead16_mcd_io(u32 a) { u32 d; if ((a & 0xff00) == 0x2000) { @@ -596,7 +591,7 @@ static u32 PicoReadM68k16_io(u32 a) return PicoRead16_io(a); } -static void PicoWriteM68k8_io(u32 a, u32 d) +void PicoWrite8_mcd_io(u32 a, u32 d) { if ((a & 0xff00) == 0x2000) { // a12000 - a120ff elprintf(EL_CDREGS, "m68k_regs w8: [%02x] %02x @%06x", @@ -608,7 +603,7 @@ static void PicoWriteM68k8_io(u32 a, u32 d) PicoWrite16_io(a, d); } -static void PicoWriteM68k16_io(u32 a, u32 d) +void PicoWrite16_mcd_io(u32 a, u32 d) { if ((a & 0xff00) == 0x2000) { // a12000 - a120ff elprintf(EL_CDREGS, "m68k_regs w16: [%02x] %04x @%06x", @@ -1057,10 +1052,10 @@ PICO_INTERNAL void PicoMemSetupCD(void) } // registers/IO: - cpu68k_map_set(m68k_read8_map, 0xa10000, 0xa1ffff, PicoReadM68k8_io, 1); - cpu68k_map_set(m68k_read16_map, 0xa10000, 0xa1ffff, PicoReadM68k16_io, 1); - cpu68k_map_set(m68k_write8_map, 0xa10000, 0xa1ffff, PicoWriteM68k8_io, 1); - cpu68k_map_set(m68k_write16_map, 0xa10000, 0xa1ffff, PicoWriteM68k16_io, 1); + cpu68k_map_set(m68k_read8_map, 0xa10000, 0xa1ffff, PicoRead8_mcd_io, 1); + cpu68k_map_set(m68k_read16_map, 0xa10000, 0xa1ffff, PicoRead16_mcd_io, 1); + cpu68k_map_set(m68k_write8_map, 0xa10000, 0xa1ffff, PicoWrite8_mcd_io, 1); + cpu68k_map_set(m68k_write16_map, 0xa10000, 0xa1ffff, PicoWrite16_mcd_io, 1); // sub68k map cpu68k_map_set(s68k_read8_map, 0x000000, 0xffffff, s68k_unmapped_read8, 1); diff --git a/pico/cd/memory_arm.s b/pico/cd/memory_arm.s index 380258c..3e6f9db 100644 --- a/pico/cd/memory_arm.s +++ b/pico/cd/memory_arm.s @@ -11,10 +11,10 @@ .text .align 2 -.global PicoReadM68k8_io -.global PicoReadM68k16_io -.global PicoWriteM68k8_io -.global PicoWriteM68k16_io +.global PicoRead8_mcd_io +.global PicoRead16_mcd_io +.global PicoWrite8_mcd_io +.global PicoWrite16_mcd_io .global PicoReadS68k8_pr .global PicoReadS68k16_pr @@ -134,7 +134,7 @@ PicoReadM68k8_cell1: @ 0x220000 - 0x23ffff, cell arranged bx lr -PicoReadM68k8_io: +PicoRead8_mcd_io: and r1, r0, #0xff00 cmp r1, #0x2000 @ a120xx? bne PicoRead8_io @@ -244,7 +244,7 @@ PicoReadM68k16_cell1: @ 0x220000 - 0x23ffff, cell arranged bx lr -PicoReadM68k16_io: +PicoRead16_mcd_io: and r1, r0, #0xff00 cmp r1, #0x2000 @ a120xx bne PicoRead16_io @@ -335,7 +335,7 @@ PicoWriteM68k8_cell1: @ 0x220000 - 0x23ffff, cell arranged bx lr -PicoWriteM68k8_io: +PicoWrite8_mcd_io: and r2, r0, #0xff00 cmp r2, #0x2000 @ a120xx? beq m68k_reg_write8 @@ -362,7 +362,7 @@ PicoWriteM68k16_cell1: @ 0x220000 - 0x23ffff, cell arranged bx lr -PicoWriteM68k16_io: +PicoWrite16_mcd_io: and r2, r0, #0xff00 cmp r2, #0x2000 @ a120xx? bne PicoWrite16_io diff --git a/pico/media.c b/pico/media.c index 597a43c..904693f 100644 --- a/pico/media.c +++ b/pico/media.c @@ -287,6 +287,7 @@ enum media_type_e PicoLoadMedia(const char *filename, goto out; } rom_data = NULL; // now belongs to PicoCart + Pico.m.ncart_in = 0; // insert CD if it was detected if (cd_img_type != CIT_NOT_CD) { @@ -296,6 +297,7 @@ enum media_type_e PicoLoadMedia(const char *filename, media_type = PM_BAD_CD; goto out; } + Pico.m.ncart_in = 1; } if (PicoQuirks & PQUIRK_FORCE_6BTN) diff --git a/pico/pico.c b/pico/pico.c index af74dd0..4557269 100644 --- a/pico/pico.c +++ b/pico/pico.c @@ -313,14 +313,13 @@ void PicoFrame(void) goto end; } - // TODO: MCD+32X - if (PicoAHW & PAHW_MCD) { - PicoFrameMCD(); + if (PicoAHW & PAHW_32X) { + PicoFrame32x(); // also does MCD+32X goto end; } - if (PicoAHW & PAHW_32X) { - PicoFrame32x(); + if (PicoAHW & PAHW_MCD) { + PicoFrameMCD(); goto end; } diff --git a/pico/pico_cmn.c b/pico/pico_cmn.c index e2ec0e1..c84c221 100644 --- a/pico/pico_cmn.c +++ b/pico/pico_cmn.c @@ -148,7 +148,8 @@ static int PicoFrameHints(void) if (ym2612.dacen && PsndDacLine <= y) PsndDoDAC(y); #ifdef PICO_CD - pcd_sync_s68k(cycles, 0); + if (PicoAHW & PAHW_MCD) + pcd_sync_s68k(cycles, 0); #endif #ifdef PICO_32X p32x_sync_sh2s(cycles); @@ -219,7 +220,8 @@ static int PicoFrameHints(void) } #ifdef PICO_CD - pcd_sync_s68k(cycles, 0); + if (PicoAHW & PAHW_MCD) + pcd_sync_s68k(cycles, 0); #endif #ifdef PICO_32X p32x_sync_sh2s(cycles); @@ -271,7 +273,8 @@ static int PicoFrameHints(void) PsndDoDAC(lines-1); #ifdef PICO_CD - pcd_sync_s68k(cycles, 0); + if (PicoAHW & PAHW_MCD) + pcd_sync_s68k(cycles, 0); #endif #ifdef PICO_32X p32x_sync_sh2s(cycles); diff --git a/pico/pico_int.h b/pico/pico_int.h index 3a530ca..38676cf 100644 --- a/pico/pico_int.h +++ b/pico/pico_int.h @@ -307,7 +307,7 @@ struct PicoMisc unsigned char sram_reg; // 09 SRAM reg. See SRR_* below unsigned short z80_bank68k; // 0a unsigned short pad0; - unsigned char pad1; + unsigned char ncart_in; // 0e !cart_in unsigned char z80_reset; // 0f z80 reset held unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay unsigned short eeprom_addr; // EEPROM address register @@ -452,6 +452,7 @@ typedef struct // 32X #define P32XS_FM (1<<15) +#define P32XS_nCART (1<< 8) #define P32XS_REN (1<< 7) #define P32XS_nRES (1<< 1) #define P32XS_ADEN (1<< 0) @@ -607,6 +608,10 @@ PICO_INTERNAL void PicoMemSetupPico(void); // cd/memory.c PICO_INTERNAL void PicoMemSetupCD(void); +unsigned int PicoRead8_mcd_io(unsigned int a); +unsigned int PicoRead16_mcd_io(unsigned int a); +void PicoWrite8_mcd_io(unsigned int a, unsigned int d); +void PicoWrite16_mcd_io(unsigned int a, unsigned int d); void pcd_state_loaded_mem(void); // pico.c @@ -647,6 +652,7 @@ void pcd_event_schedule(unsigned int now, enum pcd_event event, int after); void pcd_event_schedule_s68k(enum pcd_event event, int after); unsigned int pcd_cycles_m68k_to_s68k(unsigned int c); int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync); +void pcd_run_cpus(int m68k_cycles); void pcd_state_loaded(void); // pico/pico.c diff --git a/platform/common/emu.c b/platform/common/emu.c index 1024b84..140c017 100644 --- a/platform/common/emu.c +++ b/platform/common/emu.c @@ -322,6 +322,10 @@ static void system_announce(void) #endif } else if (PicoAHW & PAHW_PICO) { sys_name = "Pico"; + } else if ((PicoAHW & (PAHW_32X|PAHW_MCD)) == (PAHW_32X|PAHW_MCD)) { + sys_name = "32X + Mega CD"; + if ((Pico.m.hardware & 0xc0) == 0x80) + sys_name = "32X + Sega CD"; } else if (PicoAHW & PAHW_MCD) { sys_name = "Mega CD"; if ((Pico.m.hardware & 0xc0) == 0x80) -- 2.39.2