--- np2/i286c/memory.c 2003/12/19 23:16:06 1.14 +++ np2/i286c/memory.c 2004/01/25 05:41:28 1.17 @@ -10,8 +10,6 @@ BYTE mem[0x200000]; -#define USE_HIMEM 0x10fff0 - #if defined(TRACE) #define MEMORY_DEBUG #endif @@ -185,7 +183,12 @@ static void MEMCALL egc_wt(UINT32 addres static void MEMCALL emmc_wt(UINT32 address, REG8 value) { - extmem.pageptr[(address >> 14) & 3][LOW14(address)] = (BYTE)value; + i286core.e.ems[(address >> 14) & 3][LOW14(address)] = (BYTE)value; +} + +static void MEMCALL i286_wb(UINT32 address, REG8 value) { + + mem[address + 0x1c8000 - 0xe8000] = (BYTE)value; } static void MEMCALL i286_wn(UINT32 address, REG8 value) { @@ -285,13 +288,13 @@ static REG8 MEMCALL egc_rd(UINT32 addres static REG8 MEMCALL emmc_rd(UINT32 address) { - return(extmem.pageptr[(address >> 14) & 3][LOW14(address)]); + return(i286core.e.ems[(address >> 14) & 3][LOW14(address)]); } -static REG8 MEMCALL i286_itf(UINT32 address) { +static REG8 MEMCALL i286_rb(UINT32 address) { if (CPU_ITFBANK) { - address = ITF_ADRS + LOW15(address); + address += VRAM_STEP; } return(mem[address]); } @@ -465,15 +468,21 @@ static void MEMCALL emmcw_wt(UINT32 addr BYTE *ptr; if ((address & 0x3fff) != 0x3fff) { - ptr = extmem.pageptr[(address >> 14) & 3] + LOW14(address); + ptr = i286core.e.ems[(address >> 14) & 3] + LOW14(address); STOREINTELWORD(ptr, value); } else { - extmem.pageptr[(address >> 14) & 3][0x3fff] = (BYTE)value; - extmem.pageptr[((address + 1) >> 14) & 3][0] = (BYTE)(value >> 8); + i286core.e.ems[(address >> 14) & 3][0x3fff] = (BYTE)value; + i286core.e.ems[((address + 1) >> 14) & 3][0] = (BYTE)(value >> 8); } } +static void MEMCALL i286w_wb(UINT32 address, REG16 value) { + + mem[address + 0x1c8000 - 0xe8000] = (BYTE)value; + mem[address + 0x1c8001 - 0xe8000] = (BYTE)(value >> 8); +} + static void MEMCALL i286w_wn(UINT32 address, REG16 value) { (void)address; @@ -606,20 +615,20 @@ const BYTE *ptr; REG16 ret; if ((address & 0x3fff) != 0x3fff) { - ptr = extmem.pageptr[(address >> 14) & 3] + LOW14(address); + ptr = i286core.e.ems[(address >> 14) & 3] + LOW14(address); return(LOADINTELWORD(ptr)); } else { - ret = extmem.pageptr[(address >> 14) & 3][0x3fff]; - ret += extmem.pageptr[((address + 1) >> 14) & 3][0] << 8; + ret = i286core.e.ems[(address >> 14) & 3][0x3fff]; + ret += i286core.e.ems[((address + 1) >> 14) & 3][0] << 8; return(ret); } } -static REG16 MEMCALL i286w_itf(UINT32 address) { +static REG16 MEMCALL i286w_rb(UINT32 address) { if (CPU_ITFBANK) { - address = ITF_ADRS + LOW15(address); + address += VRAM_STEP; } return(LOADINTELWORD(mem + address)); } @@ -640,6 +649,17 @@ typedef struct { } MEMFN; typedef struct { + MEM8READ brd8; + MEM8READ ird8; + MEM8WRITE ewr8; + MEM8WRITE bwr8; + MEM16READ brd16; + MEM16READ ird16; + MEM16WRITE ewr16; + MEM16WRITE bwr16; +} MMAPTBL; + +typedef struct { MEM8READ rd8; MEM8WRITE wr8; MEM16READ rd16; @@ -654,7 +674,7 @@ static MEMFN memfn = { i286_rd, i286_rd, i286_rd, i286_rd, // 80 tram_rd, vram_r0, vram_r0, vram_r0, // a0 emmc_rd, emmc_rd, i286_rd, i286_rd, // c0 - vram_r0, i286_rd, i286_rd, i286_itf}, // f0 + vram_r0, i286_rd, i286_rd, i286_rb}, // f0 {i286_wt, i286_wt, i286_wt, i286_wt, // 00 i286_wt, i286_wt, i286_wt, i286_wt, // 20 @@ -672,7 +692,7 @@ static MEMFN memfn = { i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 80 tramw_rd, vramw_r0, vramw_r0, vramw_r0, // a0 emmcw_rd, emmcw_rd, i286w_rd, i286w_rd, // c0 - vramw_r0, i286w_rd, i286w_rd, i286w_itf}, // e0 + vramw_r0, i286w_rd, i286w_rd, i286w_rb}, // e0 {i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 00 i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 20 @@ -683,6 +703,12 @@ static MEMFN memfn = { emmcw_wt, emmcw_wt, i286w_wn, i286w_wn, // c0 vramw_w0, i286w_wn, i286w_wn, i286w_wn}}; // e0 +static const MMAPTBL mmaptbl[2] = { + {i286_rd, i286_rb, i286_wn, i286_wn, + i286w_rd, i286w_rb, i286w_wn, i286w_wn}, + {i286_rb, i286_rb, i286_wt, i286_wb, + i286w_rb, i286w_rb, i286w_wt, i286w_wb}}; + static const VACCTBL vacctbl[0x10] = { {vram_r0, vram_w0, vramw_r0, vramw_w0}, // 00 {vram_r1, vram_w1, vramw_r1, vramw_w1}, @@ -714,6 +740,34 @@ static REG16 MEMCALL i286_nonram_rw(UINT return(0xffff); } + +void MEMCALL i286_memorymap(UINT type) { + +const MMAPTBL *mm; + + mm = mmaptbl + (type & 1); + + memfn.rd8[0xe8000 >> 15] = mm->brd8; + memfn.rd8[0xf0000 >> 15] = mm->brd8; + 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[0xf0000 >> 15] = mm->bwr8; + memfn.wr8[0xf8000 >> 15] = mm->bwr8; + + memfn.rd16[0xe8000 >> 15] = mm->brd16; + memfn.rd16[0xf0000 >> 15] = mm->brd16; + 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[0xf0000 >> 15] = mm->bwr16; + memfn.wr16[0xf8000 >> 15] = mm->bwr16; +} + void MEMCALL i286_vram_dispatch(UINT func) { const VACCTBL *vacc; @@ -946,7 +1000,7 @@ REG8 MEMCALL i286_membyte_read(UINT seg, UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < I286_MEMREADMAX) { return(mem[address]); } @@ -959,7 +1013,7 @@ REG16 MEMCALL i286_memword_read(UINT seg UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < (I286_MEMREADMAX - 1)) { return(LOADINTELWORD(mem + address)); } @@ -972,7 +1026,7 @@ void MEMCALL i286_membyte_write(UINT seg UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < I286_MEMWRITEMAX) { mem[address] = (BYTE)value; } @@ -985,7 +1039,7 @@ void MEMCALL i286_memword_write(UINT seg UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < (I286_MEMWRITEMAX - 1)) { STOREINTELWORD(mem + address, value); } @@ -1002,6 +1056,7 @@ void MEMCALL i286_memstr_read(UINT seg, out = (BYTE *)dat; adrs = seg << 4; + off = LOW16(off); if ((I286_MEMREADMAX >= 0x10000) && (adrs < (I286_MEMREADMAX - 0x10000))) { if (leng) { @@ -1040,6 +1095,7 @@ void MEMCALL i286_memstr_write(UINT seg, out = (BYTE *)dat; adrs = seg << 4; + off = LOW16(off); if ((I286_MEMWRITEMAX >= 0x10000) && (adrs < (I286_MEMWRITEMAX - 0x10000))) { if (leng) {