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| version 1.12, 2004/03/02 16:31:21 | version 1.21, 2004/03/23 04:45:03 |
|---|---|
| Line 19 | Line 19 |
| // ---- write byte | // ---- write byte |
| static void MEMCALL i286_wt(UINT32 address, REG8 value) { | static void MEMCALL i286_wt(UINT32 address, REG8 value) { // MAIN |
| mem[address & CPU_ADRSMASK] = (BYTE)value; | mem[address & CPU_ADRSMASK] = (BYTE)value; |
| } | } |
| static void MEMCALL tram_wt(UINT32 address, REG8 value) { | static void MEMCALL tram_wt(UINT32 address, REG8 value) { // VRAM |
| CPU_REMCLOCK -= MEMWAIT_TRAM; | CPU_REMCLOCK -= MEMWAIT_TRAM; |
| if (address < 0xa2000) { | if (address < 0xa2000) { |
| Line 56 static void MEMCALL tram_wt(UINT32 addre | Line 56 static void MEMCALL tram_wt(UINT32 addre |
| } | } |
| } | } |
| static void MEMCALL vram_w0(UINT32 address, REG8 value) { | static void MEMCALL vram_w0(UINT32 address, REG8 value) { // VRAM |
| CPU_REMCLOCK -= MEMWAIT_VRAM; | CPU_REMCLOCK -= MEMWAIT_VRAM; |
| mem[address] = (BYTE)value; | mem[address] = (BYTE)value; |
| Line 64 static void MEMCALL vram_w0(UINT32 addre | Line 64 static void MEMCALL vram_w0(UINT32 addre |
| gdcs.grphdisp |= 1; | gdcs.grphdisp |= 1; |
| } | } |
| static void MEMCALL vram_w1(UINT32 address, REG8 value) { | static void MEMCALL vram_w1(UINT32 address, REG8 value) { // VRAM |
| CPU_REMCLOCK -= MEMWAIT_VRAM; | CPU_REMCLOCK -= MEMWAIT_VRAM; |
| mem[address + VRAM_STEP] = (BYTE)value; | mem[address + VRAM_STEP] = (BYTE)value; |
| Line 72 static void MEMCALL vram_w1(UINT32 addre | Line 72 static void MEMCALL vram_w1(UINT32 addre |
| gdcs.grphdisp |= 2; | gdcs.grphdisp |= 2; |
| } | } |
| static void MEMCALL grcg_rmw0(UINT32 address, REG8 value) { | static void MEMCALL grcg_rmw0(UINT32 address, REG8 value) { // VRAM |
| REG8 mask; | REG8 mask; |
| BYTE *vram; | BYTE *vram; |
| Line 101 static void MEMCALL grcg_rmw0(UINT32 add | Line 101 static void MEMCALL grcg_rmw0(UINT32 add |
| } | } |
| } | } |
| static void MEMCALL grcg_rmw1(UINT32 address, REG8 value) { | static void MEMCALL grcg_rmw1(UINT32 address, REG8 value) { // VRAM |
| REG8 mask; | REG8 mask; |
| BYTE *vram; | BYTE *vram; |
| Line 130 static void MEMCALL grcg_rmw1(UINT32 add | Line 130 static void MEMCALL grcg_rmw1(UINT32 add |
| } | } |
| } | } |
| static void MEMCALL grcg_tdw0(UINT32 address, REG8 value) { | static void MEMCALL grcg_tdw0(UINT32 address, REG8 value) { // VRAM |
| BYTE *vram; | BYTE *vram; |
| Line 154 static void MEMCALL grcg_tdw0(UINT32 add | Line 154 static void MEMCALL grcg_tdw0(UINT32 add |
| (void)value; | (void)value; |
| } | } |
| static void MEMCALL grcg_tdw1(UINT32 address, REG8 value) { | static void MEMCALL grcg_tdw1(UINT32 address, REG8 value) { // VRAM |
| BYTE *vram; | BYTE *vram; |
| Line 178 static void MEMCALL grcg_tdw1(UINT32 add | Line 178 static void MEMCALL grcg_tdw1(UINT32 add |
| (void)value; | (void)value; |
| } | } |
| static void MEMCALL egc_wt(UINT32 address, REG8 value) { | static void MEMCALL egc_wt(UINT32 address, REG8 value) { // VRAM |
| CPU_REMCLOCK -= MEMWAIT_GRCG; | CPU_REMCLOCK -= MEMWAIT_GRCG; |
| egc_write(address, value); | egc_write(address, value); |
| } | } |
| static void MEMCALL i286_wb(UINT32 address, REG8 value) { | static void MEMCALL i286_wd(UINT32 address, REG8 value) { // D0000〜DFFFF |
| if (CPU_RAM_D000 & (1 << ((address >> 12) & 15))) { | |
| mem[address] = (BYTE)value; | |
| } | |
| } | |
| static void MEMCALL i286_wb(UINT32 address, REG8 value) { // F8000〜FFFFF | |
| mem[address + 0x1c8000 - 0xe8000] = (BYTE)value; | mem[address + 0x1c8000 - 0xe8000] = (BYTE)value; |
| } | } |
| Line 456 static void MEMCALL egcw_wt(UINT32 addre | Line 463 static void MEMCALL egcw_wt(UINT32 addre |
| } | } |
| } | } |
| static void MEMCALL i286w_wd(UINT32 address, REG16 value) { | |
| BYTE *ptr; | |
| UINT16 bit; | |
| ptr = mem + address; | |
| bit = 1 << ((address >> 12) & 15); | |
| if ((address + 1) & 0xfff) { | |
| if (CPU_RAM_D000 & bit) { | |
| STOREINTELWORD(ptr, value); | |
| } | |
| } | |
| else { | |
| if (CPU_RAM_D000 & bit) { | |
| ptr[0] = (UINT8)value; | |
| } | |
| if (CPU_RAM_D000 & (bit << 1)) { | |
| ptr[1] = (UINT8)(value >> 8); | |
| } | |
| } | |
| } | |
| static void MEMCALL i286w_wb(UINT32 address, REG16 value) { | static void MEMCALL i286w_wb(UINT32 address, REG16 value) { |
| mem[address + 0x1c8000 - 0xe8000] = (BYTE)value; | BYTE *ptr; |
| mem[address + 0x1c8001 - 0xe8000] = (BYTE)(value >> 8); | |
| ptr = mem + (address + 0x1c8000 - 0xe8000); | |
| STOREINTELWORD(ptr, value); | |
| } | } |
| static void MEMCALL i286w_wn(UINT32 address, REG16 value) { | static void MEMCALL i286w_wn(UINT32 address, REG16 value) { |
| Line 612 typedef struct { | Line 643 typedef struct { |
| } MEMFN; | } MEMFN; |
| typedef struct { | typedef struct { |
| MEM8READ brd8; | MEM8READ brd8; // E8000-F7FFF byte read |
| MEM8READ ird8; | MEM8READ ird8; // F8000-FFFFF byte read |
| MEM8WRITE ewr8; | MEM8WRITE bwr8; // E8000-FFFFF byte write |
| MEM8WRITE bwr8; | MEM16READ brd16; // E8000-F7FFF word read |
| MEM16READ brd16; | MEM16READ ird16; // F8000-FFFFF word read |
| MEM16READ ird16; | MEM16WRITE bwr16; // F8000-FFFFF word write |
| MEM16WRITE ewr16; | |
| MEM16WRITE bwr16; | |
| } MMAPTBL; | } MMAPTBL; |
| typedef struct { | typedef struct { |
| Line 645 static MEMFN memfn = { | Line 674 static MEMFN memfn = { |
| i286_wt, i286_wt, i286_wt, i286_wt, // 60 | i286_wt, i286_wt, i286_wt, i286_wt, // 60 |
| i286_wt, i286_wt, i286_wt, i286_wt, // 80 | i286_wt, i286_wt, i286_wt, i286_wt, // 80 |
| tram_wt, vram_w0, vram_w0, vram_w0, // a0 | tram_wt, vram_w0, vram_w0, vram_w0, // a0 |
| i286_wn, i286_wn, i286_wn, i286_wn, // c0 | i286_wn, i286_wn, i286_wd, i286_wd, // c0 |
| vram_w0, i286_wn, i286_wn, i286_wn}, // e0 | vram_w0, i286_wn, i286_wn, i286_wn}, // e0 |
| {i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 00 | {i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 00 |
| Line 663 static MEMFN memfn = { | Line 692 static MEMFN memfn = { |
| i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 60 | i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 60 |
| i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 80 | i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 80 |
| tramw_wt, vramw_w0, vramw_w0, vramw_w0, // a0 | tramw_wt, vramw_w0, vramw_w0, vramw_w0, // a0 |
| i286w_wn, i286w_wn, i286w_wn, i286w_wn, // c0 | i286w_wn, i286w_wn, i286w_wd, i286w_wd, // c0 |
| vramw_w0, i286w_wn, i286w_wn, i286w_wn}}; // e0 | vramw_w0, i286w_wn, i286w_wn, i286w_wn}}; // e0 |
| static const MMAPTBL mmaptbl[2] = { | static const MMAPTBL mmaptbl[2] = { |
| {i286_rd, i286_rb, i286_wn, i286_wn, | {i286_rd, i286_rb, i286_wn, |
| i286w_rd, i286w_rb, i286w_wn, i286w_wn}, | i286w_rd, i286w_rb, i286w_wn}, |
| {i286_rb, i286_rb, i286_wt, i286_wb, | {i286_rb, i286_rb, i286_wb, |
| i286w_rb, i286w_rb, i286w_wt, i286w_wb}}; | i286w_rb, i286w_rb, i286w_wb}}; |
| static const VACCTBL vacctbl[0x10] = { | static const VACCTBL vacctbl[0x10] = { |
| {vram_r0, vram_w0, vramw_r0, vramw_w0}, // 00 | {vram_r0, vram_w0, vramw_r0, vramw_w0}, // 00 |
| Line 713 const MMAPTBL *mm; | Line 742 const MMAPTBL *mm; |
| memfn.rd8[0xe8000 >> 15] = mm->brd8; | memfn.rd8[0xe8000 >> 15] = mm->brd8; |
| memfn.rd8[0xf0000 >> 15] = mm->brd8; | memfn.rd8[0xf0000 >> 15] = mm->brd8; |
| memfn.rd8[0xf8000 >> 15] = mm->ird8; | memfn.rd8[0xf8000 >> 15] = mm->ird8; |
| memfn.wr8[0xd0000 >> 15] = mm->ewr8; | |
| memfn.wr8[0xd8000 >> 15] = mm->ewr8; | |
| memfn.wr8[0xe8000 >> 15] = mm->bwr8; | memfn.wr8[0xe8000 >> 15] = mm->bwr8; |
| memfn.wr8[0xf0000 >> 15] = mm->bwr8; | memfn.wr8[0xf0000 >> 15] = mm->bwr8; |
| memfn.wr8[0xf8000 >> 15] = mm->bwr8; | memfn.wr8[0xf8000 >> 15] = mm->bwr8; |
| Line 723 const MMAPTBL *mm; | Line 749 const MMAPTBL *mm; |
| memfn.rd16[0xe8000 >> 15] = mm->brd16; | memfn.rd16[0xe8000 >> 15] = mm->brd16; |
| memfn.rd16[0xf0000 >> 15] = mm->brd16; | memfn.rd16[0xf0000 >> 15] = mm->brd16; |
| memfn.rd16[0xf8000 >> 15] = mm->ird16; | memfn.rd16[0xf8000 >> 15] = mm->ird16; |
| memfn.wr16[0xd0000 >> 15] = mm->ewr16; | |
| memfn.wr16[0xd8000 >> 15] = mm->ewr16; | |
| memfn.wr16[0xe8000 >> 15] = mm->bwr16; | memfn.wr16[0xe8000 >> 15] = mm->bwr16; |
| memfn.wr16[0xf0000 >> 15] = mm->bwr16; | memfn.wr16[0xf0000 >> 15] = mm->bwr16; |
| memfn.wr16[0xf8000 >> 15] = mm->bwr16; | memfn.wr16[0xf8000 >> 15] = mm->bwr16; |
| Line 796 REG8 MEMCALL i286_memoryread(UINT32 addr | Line 819 REG8 MEMCALL i286_memoryread(UINT32 addr |
| UINT32 pos; | UINT32 pos; |
| addr &= CPU_ADRSMASK; | |
| if (addr < I286_MEMREADMAX) { | if (addr < I286_MEMREADMAX) { |
| return(mem[addr]); | return(mem[addr]); |
| } | } |
| else if (addr >= USE_HIMEM) { | else if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if (pos < CPU_EXTMEMSIZE) { | if (pos < CPU_EXTMEMSIZE) { |
| return(CPU_EXTMEM[pos]); | return(CPU_EXTMEM[pos]); |
| } | } |
| Line 809 REG8 MEMCALL i286_memoryread(UINT32 addr | Line 831 REG8 MEMCALL i286_memoryread(UINT32 addr |
| return(memfn.rd8[(addr >> 15) & 0x1f](addr - 0x00f00000)); | return(memfn.rd8[(addr >> 15) & 0x1f](addr - 0x00f00000)); |
| } | } |
| #if defined(SUPPORT_PC9821) | #if defined(SUPPORT_PC9821) |
| else if (addr >= 0xfff00000) { | else if ((addr >= 0x00f00000) && (addr < 0x00f80000)) { |
| return(mem9821_r(addr)); | |
| } | |
| else if ((addr >= 0xfff00000) && (addr < 0xfff80000)) { | |
| return(mem9821_r(addr)); | return(mem9821_r(addr)); |
| } | } |
| #endif | #endif |
| else { | else { |
| // TRACEOUT(("out of mem (read8): %x", addr)); | |
| return(0xff); | return(0xff); |
| } | } |
| } | } |
| Line 827 REG16 MEMCALL i286_memoryread_w(UINT32 a | Line 853 REG16 MEMCALL i286_memoryread_w(UINT32 a |
| UINT32 pos; | UINT32 pos; |
| REG16 ret; | REG16 ret; |
| addr &= CPU_ADRSMASK; | |
| if (addr < (I286_MEMREADMAX - 1)) { | if (addr < (I286_MEMREADMAX - 1)) { |
| return(LOADINTELWORD(mem + addr)); | return(LOADINTELWORD(mem + addr)); |
| } | } |
| else if ((addr + 1) & 0x7fff) { // non 32kb boundary | else if ((addr + 1) & 0x7fff) { // non 32kb boundary |
| if (addr >= USE_HIMEM) { | if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if (pos < CPU_EXTMEMSIZE) { | if (pos < CPU_EXTMEMSIZE) { |
| return(LOADINTELWORD(CPU_EXTMEM + pos)); | return(LOADINTELWORD(CPU_EXTMEM + pos)); |
| } | } |
| Line 841 REG16 MEMCALL i286_memoryread_w(UINT32 a | Line 866 REG16 MEMCALL i286_memoryread_w(UINT32 a |
| return(memfn.rd16[(addr >> 15) & 0x1f](addr - 0x00f00000)); | return(memfn.rd16[(addr >> 15) & 0x1f](addr - 0x00f00000)); |
| } | } |
| #if defined(SUPPORT_PC9821) | #if defined(SUPPORT_PC9821) |
| else if (addr >= 0xfff00000) { | else if ((addr >= 0x00f00000) && (addr < 0x00f80000)) { |
| return(mem9821_rw(addr)); | |
| } | |
| else if ((addr >= 0xfff00000) && (addr < 0xfff80000)) { | |
| return(mem9821_rw(addr)); | return(mem9821_rw(addr)); |
| } | } |
| #endif | #endif |
| else { | else { |
| // TRACEOUT(("out of mem (read16): %x", addr)); | |
| return(0xffff); | return(0xffff); |
| } | } |
| } | } |
| Line 863 UINT32 MEMCALL i286_memoryread_d(UINT32 | Line 892 UINT32 MEMCALL i286_memoryread_d(UINT32 |
| UINT32 pos; | UINT32 pos; |
| UINT32 ret; | UINT32 ret; |
| addr &= CPU_ADRSMASK; | |
| if (addr < (I286_MEMREADMAX - 3)) { | if (addr < (I286_MEMREADMAX - 3)) { |
| return(LOADINTELDWORD(mem + addr)); | return(LOADINTELDWORD(mem + addr)); |
| } | } |
| else if (addr >= USE_HIMEM) { | else if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if ((pos + 3) < CPU_EXTMEMSIZE) { | if ((pos + 3) < CPU_EXTMEMSIZE) { |
| return(LOADINTELDWORD(CPU_EXTMEM + pos)); | return(LOADINTELDWORD(CPU_EXTMEM + pos)); |
| } | } |
| Line 889 void MEMCALL i286_memorywrite(UINT32 add | Line 917 void MEMCALL i286_memorywrite(UINT32 add |
| UINT32 pos; | UINT32 pos; |
| addr &= CPU_ADRSMASK; | |
| if (addr < I286_MEMWRITEMAX) { | if (addr < I286_MEMWRITEMAX) { |
| mem[addr] = (BYTE)value; | mem[addr] = (BYTE)value; |
| } | } |
| else if (addr >= USE_HIMEM) { | else if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if (pos < CPU_EXTMEMSIZE) { | if (pos < CPU_EXTMEMSIZE) { |
| CPU_EXTMEM[pos] = (BYTE)value; | CPU_EXTMEM[pos] = (BYTE)value; |
| } | } |
| Line 902 void MEMCALL i286_memorywrite(UINT32 add | Line 929 void MEMCALL i286_memorywrite(UINT32 add |
| memfn.wr8[(addr >> 15) & 0x1f](addr - 0x00f00000, value); | memfn.wr8[(addr >> 15) & 0x1f](addr - 0x00f00000, value); |
| } | } |
| #if defined(SUPPORT_PC9821) | #if defined(SUPPORT_PC9821) |
| else if (addr >= 0xfff00000) { | else if ((addr >= 0x00f00000) && (addr < 0x00f80000)) { |
| mem9821_w(addr, value); | |
| } | |
| else if ((addr >= 0xfff00000) && (addr < 0xfff80000)) { | |
| mem9821_w(addr, value); | mem9821_w(addr, value); |
| } | } |
| #endif | #endif |
| else { | else { |
| TRACEOUT(("mem_w %x %x", addr, value)); | // TRACEOUT(("out of mem (write8): %x", addr)); |
| } | } |
| } | } |
| else { | else { |
| Line 919 void MEMCALL i286_memorywrite_w(UINT32 a | Line 949 void MEMCALL i286_memorywrite_w(UINT32 a |
| UINT32 pos; | UINT32 pos; |
| addr &= CPU_ADRSMASK; | |
| if (addr < (I286_MEMWRITEMAX - 1)) { | if (addr < (I286_MEMWRITEMAX - 1)) { |
| STOREINTELWORD(mem + addr, value); | STOREINTELWORD(mem + addr, value); |
| } | } |
| else if ((addr + 1) & 0x7fff) { // non 32kb boundary | else if ((addr + 1) & 0x7fff) { // non 32kb boundary |
| if (addr >= USE_HIMEM) { | if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if (pos < CPU_EXTMEMSIZE) { | if (pos < CPU_EXTMEMSIZE) { |
| STOREINTELWORD(CPU_EXTMEM + pos, value); | STOREINTELWORD(CPU_EXTMEM + pos, value); |
| } | } |
| Line 933 void MEMCALL i286_memorywrite_w(UINT32 a | Line 962 void MEMCALL i286_memorywrite_w(UINT32 a |
| memfn.wr16[(addr >> 15) & 0x1f](addr - 0x00f00000, value); | memfn.wr16[(addr >> 15) & 0x1f](addr - 0x00f00000, value); |
| } | } |
| #if defined(SUPPORT_PC9821) | #if defined(SUPPORT_PC9821) |
| else if (addr >= 0xfff00000) { | else if ((addr >= 0x00f00000) && (addr < 0x00f80000)) { |
| mem9821_ww(addr, value); | |
| } | |
| else if ((addr >= 0xfff00000) && (addr < 0xfff80000)) { | |
| mem9821_ww(addr, value); | mem9821_ww(addr, value); |
| } | } |
| #endif | #endif |
| else { | |
| // TRACEOUT(("out of mem (write16): %x", addr)); | |
| } | |
| } | } |
| else { | else { |
| memfn.wr16[(addr >> 15) & 0x1f](addr, value); | memfn.wr16[(addr >> 15) & 0x1f](addr, value); |
| Line 952 void MEMCALL i286_memorywrite_d(UINT32 a | Line 987 void MEMCALL i286_memorywrite_d(UINT32 a |
| UINT32 pos; | UINT32 pos; |
| addr &= CPU_ADRSMASK; | |
| if (addr < (I286_MEMWRITEMAX - 3)) { | if (addr < (I286_MEMWRITEMAX - 3)) { |
| STOREINTELDWORD(mem + addr, value); | STOREINTELDWORD(mem + addr, value); |
| return; | return; |
| } | } |
| else if (addr >= USE_HIMEM) { | else if (addr >= USE_HIMEM) { |
| pos = addr - 0x100000; | pos = (addr & CPU_ADRSMASK) - 0x100000; |
| if ((pos + 3) < CPU_EXTMEMSIZE) { | if ((pos + 3) < CPU_EXTMEMSIZE) { |
| STOREINTELDWORD(CPU_EXTMEM + pos, value); | STOREINTELDWORD(CPU_EXTMEM + pos, value); |
| return; | return; |
| Line 975 void MEMCALL i286_memorywrite_d(UINT32 a | Line 1009 void MEMCALL i286_memorywrite_d(UINT32 a |
| } | } |
| } | } |
| #ifdef NP2_MEMORY_ASM | #if 0 |
| REG8 MEMCALL i286_membyte_read(UINT seg, UINT off) { | REG8 MEMCALL i286_membyte_read(UINT seg, UINT off) { |
| UINT32 address; | UINT32 address; |
| Line 1027 void MEMCALL i286_memword_write(UINT seg | Line 1061 void MEMCALL i286_memword_write(UINT seg |
| i286_memorywrite_w(address, value); | i286_memorywrite_w(address, value); |
| } | } |
| } | } |
| #endif /* NP2_MEMORY_ASM */ | #endif |
| void MEMCALL i286_memstr_read(UINT seg, UINT off, void *dat, UINT leng) { | void MEMCALL memp_read(UINT32 address, void *dat, UINT leng) { |
| BYTE *out; | BYTE *out = (BYTE *)dat; |
| UINT32 adrs; | UINT pos; |
| UINT size; | UINT diff; |
| out = (BYTE *)dat; | /* fast memory access */ |
| adrs = seg << 4; | if (address + leng < I286_MEMREADMAX) { |
| off = LOW16(off); | CopyMemory(dat, mem + address, leng); |
| if ((I286_MEMREADMAX >= 0x10000) && | return; |
| (adrs < (I286_MEMREADMAX - 0x10000))) { | } else if (address >= USE_HIMEM) { |
| if (leng) { | pos = (address & CPU_ADRSMASK) - 0x100000; |
| size = 0x10000 - off; | if (pos + leng < CPU_EXTMEMSIZE) { |
| if (size >= leng) { | CopyMemory(dat, CPU_EXTMEM + pos, leng); |
| CopyMemory(out, mem + adrs + off, leng); | return; |
| return; | |
| } | |
| CopyMemory(out, mem + adrs + off, size); | |
| out += size; | |
| leng -= size; | |
| } | |
| while(leng >= 0x10000) { | |
| CopyMemory(out, mem + adrs, 0x10000); | |
| out += 0x10000; | |
| leng -= 0x10000; | |
| } | } |
| if (leng) { | if (pos < CPU_EXTMEMSIZE) { |
| CopyMemory(out, mem + adrs, leng); | diff = CPU_EXTMEMSIZE - pos; |
| CopyMemory(out, CPU_EXTMEM + pos, diff); | |
| out += diff; | |
| leng -= diff; | |
| address += diff; | |
| } | } |
| } | } |
| else { | |
| while(leng--) { | /* slow memory access */ |
| *out++ = i286_memoryread(adrs + off); | while (leng-- > 0) { |
| off = LOW16(off + 1); | *out++ = i286_memoryread(address++); |
| } | |
| } | |
| void MEMCALL memp_write(UINT32 address, const void *dat, UINT leng) { | |
| const BYTE *out = (BYTE *)dat; | |
| UINT pos; | |
| UINT diff; | |
| /* fast memory access */ | |
| if (address + leng < I286_MEMREADMAX) { | |
| CopyMemory(mem + address, dat, leng); | |
| return; | |
| } else if (address >= USE_HIMEM) { | |
| pos = (address & CPU_ADRSMASK) - 0x100000; | |
| if (pos + leng < CPU_EXTMEMSIZE) { | |
| CopyMemory(CPU_EXTMEM + pos, dat, leng); | |
| return; | |
| } | |
| if (pos < CPU_EXTMEMSIZE) { | |
| diff = CPU_EXTMEMSIZE - pos; | |
| CopyMemory(CPU_EXTMEM + pos, dat, diff); | |
| out += diff; | |
| leng -= diff; | |
| address += diff; | |
| } | } |
| } | } |
| /* slow memory access */ | |
| while (leng-- > 0) { | |
| i286_memorywrite(address++, *out++); | |
| } | |
| } | } |
| void MEMCALL i286_memstr_write(UINT seg, UINT off, const void *dat, UINT leng) { | |
| BYTE *out; | // ---- Logical Space (BIOS) |
| UINT32 adrs; | |
| UINT size; | |
| out = (BYTE *)dat; | static UINT32 physicaladdr(UINT32 addr) { |
| adrs = seg << 4; | |
| off = LOW16(off); | UINT32 a; |
| if ((I286_MEMWRITEMAX >= 0x10000) && | UINT32 pde; |
| (adrs < (I286_MEMWRITEMAX - 0x10000))) { | UINT32 pte; |
| if (leng) { | |
| size = 0x10000 - off; | if (CPU_STAT_PAGING) { |
| if (size >= leng) { | a = CPU_STAT_PDE_BASE + ((addr >> 20) & 0xffc); |
| CopyMemory(mem + adrs + off, out, leng); | pde = i286_memoryread_d(a); |
| return; | if (!(pde & CPU_PDE_PRESENT)) { |
| } | goto retdummy; |
| CopyMemory(mem + adrs + off, out, size); | |
| out += size; | |
| leng -= size; | |
| } | } |
| while(leng >= 0x10000) { | #if 0 |
| CopyMemory(mem + adrs, out, 0x10000); | if (!(pde & CPU_PDE_ACCESS)) { |
| out += 0x10000; | i286_memorywrite_d(a, pde | CPU_PDE_ACCESS); |
| leng -= 0x10000; | |
| } | } |
| if (leng) { | #endif |
| CopyMemory(mem + adrs, out, leng); | a = (pde & CPU_PDE_BASEADDR_MASK) + ((addr >> 10) & 0xffc); |
| pte = cpu_memoryread_d(a); | |
| if (!(pte & CPU_PTE_PRESENT)) { | |
| goto retdummy; | |
| } | |
| #if 0 | |
| if (!(pte & CPU_PTE_ACCESS)) { | |
| i286_memorywrite_d(a, pte | CPU_PTE_ACCESS); | |
| } | } |
| #endif | |
| addr = (pte & CPU_PTE_BASEADDR_MASK) + (addr & 0x00000fff); | |
| } | |
| return(addr); | |
| retdummy: | |
| return(0x01000000); // てきとーにメモリが存在しない場所 | |
| } | |
| REG8 MEMCALL meml_read8(UINT seg, UINT off) { | |
| UINT32 addr; | |
| addr = (seg << 4) + LOW16(off); | |
| if (CPU_STAT_PAGING) { | |
| addr = physicaladdr(addr); | |
| } | |
| return(i286_memoryread(addr)); | |
| } | |
| REG16 MEMCALL meml_read16(UINT seg, UINT off) { | |
| UINT32 addr; | |
| addr = (seg << 4) + LOW16(off); | |
| if (!CPU_STAT_PAGING) { | |
| return(i286_memoryread_w(addr)); | |
| } | |
| else if ((addr + 1) & 0xfff) { | |
| return(i286_memoryread_w(physicaladdr(addr))); | |
| } | |
| return(meml_read8(seg, off) + (meml_read8(seg, off + 1) << 8)); | |
| } | |
| void MEMCALL meml_write8(UINT seg, UINT off, REG8 dat) { | |
| UINT32 addr; | |
| addr = (seg << 4) + LOW16(off); | |
| if (CPU_STAT_PAGING) { | |
| addr = physicaladdr(addr); | |
| } | |
| i286_memorywrite(addr, dat); | |
| } | |
| void MEMCALL meml_write16(UINT seg, UINT off, REG16 dat) { | |
| UINT32 addr; | |
| addr = (seg << 4) + LOW16(off); | |
| if (!CPU_STAT_PAGING) { | |
| i286_memorywrite_w(addr, dat); | |
| } | |
| else if ((addr + 1) & 0xfff) { | |
| i286_memorywrite_w(physicaladdr(addr), dat); | |
| } | } |
| else { | else { |
| while(leng--) { | meml_write8(seg, off, (REG8)dat); |
| i286_memorywrite(adrs + off, *out++); | meml_write8(seg, off + 1, (REG8)(dat >> 8)); |
| off = LOW16(off + 1); | |
| } | |
| } | } |
| } | } |
| void MEMCALL i286_memx_read(UINT32 address, void *dat, UINT leng) { | void MEMCALL meml_readstr(UINT seg, UINT off, void *dat, UINT leng) { |
| if ((address + leng) < I286_MEMREADMAX) { | UINT32 adrs; |
| CopyMemory(dat, mem + address, leng); | UINT size; |
| while(leng) { | |
| off = LOW16(off); | |
| adrs = (seg << 4) + off; | |
| size = 0x1000 - (adrs & 0xfff); | |
| size = min(size, leng); | |
| size = min(size, 0x10000 - off); | |
| memp_read(physicaladdr(adrs), dat, size); | |
| off += size; | |
| dat = ((BYTE *)dat) + size; | |
| leng -= size; | |
| } | |
| } | |
| void MEMCALL meml_writestr(UINT seg, UINT off, const void *dat, UINT leng) { | |
| UINT32 adrs; | |
| UINT size; | |
| while(leng) { | |
| off = LOW16(off); | |
| adrs = (seg << 4) + off; | |
| size = 0x1000 - (adrs & 0xfff); | |
| size = min(size, leng); | |
| size = min(size, 0x10000 - off); | |
| memp_write(physicaladdr(adrs), dat, size); | |
| off += size; | |
| dat = ((BYTE *)dat) + size; | |
| leng -= size; | |
| } | |
| } | |
| void MEMCALL meml_read(UINT32 address, void *dat, UINT leng) { | |
| UINT size; | |
| if (!CPU_STAT_PAGING) { | |
| memp_read(address, dat, leng); | |
| } | } |
| else { | else { |
| BYTE *out = (BYTE *)dat; | while(leng) { |
| if (address < I286_MEMREADMAX) { | size = 0x1000 - (address & 0xfff); |
| CopyMemory(out, mem + address, I286_MEMREADMAX - address); | size = min(size, leng); |
| out += I286_MEMREADMAX - address; | memp_read(physicaladdr(address), dat, size); |
| leng -= I286_MEMREADMAX - address; | address += size; |
| address = I286_MEMREADMAX; | dat = ((BYTE *)dat) + size; |
| } | leng -= size; |
| while(leng--) { | |
| *out++ = i286_memoryread(address++); | |
| } | } |
| } | } |
| } | } |
| void MEMCALL i286_memx_write(UINT32 address, const void *dat, UINT leng) { | void MEMCALL meml_write(UINT32 address, const void *dat, UINT leng) { |
| const BYTE *out; | UINT size; |
| if ((address + leng) < I286_MEMWRITEMAX) { | if (!CPU_STAT_PAGING) { |
| CopyMemory(mem + address, dat, leng); | memp_write(address, dat, leng); |
| } | } |
| else { | else { |
| out = (BYTE *)dat; | while(leng) { |
| if (address < I286_MEMWRITEMAX) { | size = 0x1000 - (address & 0xfff); |
| CopyMemory(mem + address, out, I286_MEMWRITEMAX - address); | size = min(size, leng); |
| out += I286_MEMWRITEMAX - address; | memp_write(physicaladdr(address), dat, size); |
| leng -= I286_MEMWRITEMAX - address; | address += size; |
| address = I286_MEMWRITEMAX; | dat = ((BYTE *)dat) + size; |
| } | leng -= size; |
| while(leng--) { | |
| i286_memorywrite(address++, *out++); | |
| } | } |
| } | } |
| } | } |
| #endif | #endif |