--- np2/i286c/memory.c 2003/10/16 17:57:47 1.1.1.1 +++ np2/i286c/memory.c 2005/03/11 15:12:57 1.28 @@ -1,739 +1,238 @@ #include "compiler.h" -#include "i286.h" -#include "memory.h" -#include "egcmem.h" + +#ifndef NP2_MEMORY_ASM + +#include "cpucore.h" #include "pccore.h" #include "iocore.h" +#include "memtram.h" +#include "memvram.h" +#include "memegc.h" +#if defined(SUPPORT_PC9821) +#include "memvga.h" +#endif +#include "memems.h" +#include "memepp.h" #include "vram.h" #include "font.h" -#define USE_HIMEM - -// ---- write byte - -static void MEMCALL i286_wt(UINT32 address, BYTE value) { - - mem[address & extmem.adrsmask] = value; -} - -static void MEMCALL tram_wt(UINT32 address, BYTE value) { - - nevent.remainclock -= vramop.tramwait; - if (address < 0xa2000) { - mem[address] = value; - tramupdate[(address >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - else if (address < 0xa3fe0) { - if (!(address & 1)) { - mem[address] = value; - tramupdate[(address >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - } - else if (address < 0xa4000) { - if (!(address & 1)) { - if ((!(address & 2)) || (gdcs.msw_accessable)) { - mem[address] = value; - tramupdate[(address >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - } - } - else if (address < 0xa5000) { - if ((address & 1) && (cgwindow.writable & 1)) { - cgwindow.writable |= 0x80; - font[cgwindow.high + ((address >> 1) & 0x0f)] = value; - } - } -} + UINT8 mem[0x200000]; -static void MEMCALL vram_w0(UINT32 address, BYTE value) { - nevent.remainclock -= vramop.vramwait; - mem[address] = value; - vramupdate[address & 0x7fff] |= 1; - gdcs.grphdisp |= 1; -} +// ---- MAIN -static void MEMCALL vram_w1(UINT32 address, BYTE value) { +static REG8 MEMCALL memmain_rd8(UINT32 address) { - nevent.remainclock -= vramop.vramwait; - mem[address + VRAM_STEP] = value; - vramupdate[address & 0x7fff] |= 2; - gdcs.grphdisp |= 2; + return(mem[address & CPU_ADRSMASK]); } -static void MEMCALL grcg_rmw0(UINT32 address, BYTE value) { +static REG16 MEMCALL memmain_rd16(UINT32 address) { - BYTE mask; - BYTE *vram; +const UINT8 *ptr; - nevent.remainclock -= vramop.grcgwait; - mask = ~value; - address &= 0x7fff; - vramupdate[address] |= 1; - gdcs.grphdisp |= 1; - vram = mem + address; - if (!(grcg.modereg & 1)) { - vram[VRAM0_B] &= mask; - vram[VRAM0_B] |= (value & grcg.tile[0].b[0]); - } - if (!(grcg.modereg & 2)) { - vram[VRAM0_R] &= mask; - vram[VRAM0_R] |= (value & grcg.tile[1].b[0]); - } - if (!(grcg.modereg & 4)) { - vram[VRAM0_G] &= mask; - vram[VRAM0_G] |= (value & grcg.tile[2].b[0]); - } - if (!(grcg.modereg & 8)) { - vram[VRAM0_E] &= mask; - vram[VRAM0_E] |= (value & grcg.tile[3].b[0]); - } + ptr = mem + (address & CPU_ADRSMASK); + return(LOADINTELWORD(ptr)); } -static void MEMCALL grcg_rmw1(UINT32 address, BYTE value) { +static void MEMCALL memmain_wr8(UINT32 address, REG8 value) { - BYTE mask; - BYTE *vram; - - nevent.remainclock -= vramop.grcgwait; - mask = ~value; - address &= 0x7fff; - vramupdate[address] |= 2; - gdcs.grphdisp |= 2; - vram = mem + address; - if (!(grcg.modereg & 1)) { - vram[VRAM1_B] &= mask; - vram[VRAM1_B] |= (value & grcg.tile[0].b[0]); - } - if (!(grcg.modereg & 2)) { - vram[VRAM1_R] &= mask; - vram[VRAM1_R] |= (value & grcg.tile[1].b[0]); - } - if (!(grcg.modereg & 4)) { - vram[VRAM1_G] &= mask; - vram[VRAM1_G] |= (value & grcg.tile[2].b[0]); - } - if (!(grcg.modereg & 8)) { - vram[VRAM1_E] &= mask; - vram[VRAM1_E] |= (value & grcg.tile[3].b[0]); - } + mem[address & CPU_ADRSMASK] = (UINT8)value; } -static void MEMCALL grcg_tdw0(UINT32 address, BYTE value) { +static void MEMCALL memmain_wr16(UINT32 address, REG16 value) { - BYTE *vram; + UINT8 *ptr; - nevent.remainclock -= vramop.grcgwait; - address &= 0x7fff; - vramupdate[address] |= 1; - gdcs.grphdisp |= 1; - vram = mem + address; - if (!(grcg.modereg & 1)) { - vram[VRAM0_B] = grcg.tile[0].b[0]; - } - if (!(grcg.modereg & 2)) { - vram[VRAM0_R] = grcg.tile[1].b[0]; - } - if (!(grcg.modereg & 4)) { - vram[VRAM0_G] = grcg.tile[2].b[0]; - } - if (!(grcg.modereg & 8)) { - vram[VRAM0_E] = grcg.tile[3].b[0]; - } - (void)value; + ptr = mem + (address & CPU_ADRSMASK); + STOREINTELWORD(ptr, value); } -static void MEMCALL grcg_tdw1(UINT32 address, BYTE value) { - - BYTE *vram; - nevent.remainclock -= vramop.grcgwait; - address &= 0x7fff; - vramupdate[address] |= 2; - gdcs.grphdisp |= 2; - vram = mem + address; - if (!(grcg.modereg & 1)) { - vram[VRAM1_B] = grcg.tile[0].b[0]; - } - if (!(grcg.modereg & 2)) { - vram[VRAM1_R] = grcg.tile[1].b[0]; - } - if (!(grcg.modereg & 4)) { - vram[VRAM1_G] = grcg.tile[2].b[0]; - } - if (!(grcg.modereg & 8)) { - vram[VRAM1_E] = grcg.tile[3].b[0]; - } - (void)value; -} +// ---- N/C -static void MEMCALL egc_wt(UINT32 address, BYTE value) { +static REG8 MEMCALL memnc_rd8(UINT32 address) { - egc_write(address, value); + (void)address; + return(0xff); } -static void MEMCALL emmc_wt(UINT32 address, BYTE value) { +static REG16 MEMCALL memnc_rd16(UINT32 address) { - extmem.pageptr[(address >> 14) & 3][address & 0x3fff] = value; + (void)address; + return(0xffff); } -static void MEMCALL i286_wn(UINT32 address, BYTE value) { +static void MEMCALL memnc_wr8(UINT32 address, REG8 value) { (void)address; (void)value; } - -// ---- read byte - -static BYTE MEMCALL i286_rd(UINT32 address) { - - return(mem[address & extmem.adrsmask]); -} - -static BYTE MEMCALL tram_rd(UINT32 address) { - - nevent.remainclock -= vramop.tramwait; - if (address < 0xa4000) { - return(mem[address]); - } - else if (address < 0xa5000) { - if (address & 1) { - return(font[cgwindow.high + ((address >> 1) & 0x0f)]); - } - else { - return(font[cgwindow.low + ((address >> 1) & 0x0f)]); - } - } - return(mem[address]); -} - -static BYTE MEMCALL vram_r0(UINT32 address) { - - nevent.remainclock -= vramop.vramwait; - return(mem[address]); -} - -static BYTE MEMCALL vram_r1(UINT32 address) { - - nevent.remainclock -= vramop.vramwait; - return(mem[address + VRAM_STEP]); -} - -static BYTE MEMCALL grcg_tcr0(UINT32 address) { - -const BYTE *vram; - BYTE ret; - - nevent.remainclock -= vramop.grcgwait; - vram = mem + (address & 0x7fff); - ret = 0; - if (!(grcg.modereg & 1)) { - ret |= vram[VRAM0_B] ^ grcg.tile[0].b[0]; - } - if (!(grcg.modereg & 2)) { - ret |= vram[VRAM0_R] ^ grcg.tile[1].b[0]; - } - if (!(grcg.modereg & 4)) { - ret |= vram[VRAM0_G] ^ grcg.tile[2].b[0]; - } - if (!(grcg.modereg & 8)) { - ret |= vram[VRAM0_E] ^ grcg.tile[3].b[0]; - } - return(~ret); -} - -static BYTE MEMCALL grcg_tcr1(UINT32 address) { - - BYTE *vram; - BYTE ret; - - nevent.remainclock -= vramop.grcgwait; - ret = 0; - vram = mem + (address & 0x7fff); - if (!(grcg.modereg & 1)) { - ret |= vram[VRAM1_B] ^ grcg.tile[0].b[0]; - } - if (!(grcg.modereg & 2)) { - ret |= vram[VRAM1_R] ^ grcg.tile[1].b[0]; - } - if (!(grcg.modereg & 4)) { - ret |= vram[VRAM1_G] ^ grcg.tile[2].b[0]; - } - if (!(grcg.modereg & 8)) { - ret |= vram[VRAM1_E] ^ grcg.tile[3].b[0]; - } - return(~ret); -} - -static BYTE MEMCALL egc_rd(UINT32 address) { - - return(egc_read(address)); -} - -static BYTE MEMCALL emmc_rd(UINT32 address) { - - return(extmem.pageptr[(address >> 14) & 3][address & 0x3fff]); -} - -static BYTE MEMCALL i286_itf(UINT32 address) { - - if (itf.bank) { - address = ITF_ADRS + (address & 0x7fff); - } - return(mem[address]); -} - - -// ---- write word - -static void MEMCALL i286w_wt(UINT32 address, UINT16 value) { - - BYTE *ptr; - - ptr = mem + (address & extmem.adrsmask); - STOREINTELWORD(ptr, value); -} - -static void MEMCALL tramw_wt(UINT32 address, UINT16 value) { - - if (address < 0xa1fff) { - STOREINTELWORD(mem + address, value); - tramupdate[(address >> 1) & 0x0fff] = 1; - tramupdate[((address + 1) >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - else if (address == 0xa1fff) { - STOREINTELWORD(mem + address, value); - tramupdate[0] = 1; - tramupdate[0xfff] = 1; - gdcs.textdisp |= 1; - } - else if (address < 0xa3fe0) { - if (address & 1) { - address++; - value >>= 8; - } - mem[address] = (BYTE)value; - tramupdate[(address >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - else if (address < 0xa3fff) { - if (address & 1) { - address++; - value >>= 8; - } - if ((!(address & 2)) || (gdcs.msw_accessable)) { - mem[address] = (BYTE)value; - tramupdate[(address >> 1) & 0x0fff] = 1; - gdcs.textdisp |= 1; - } - } - else if (address < 0xa5000) { - if (address & 1) { - value >>= 8; - } - if (cgwindow.writable & 1) { - cgwindow.writable |= 0x80; - font[cgwindow.high + ((address >> 1) & 0x0f)] = (BYTE)value; - } - } -} - - -#define GRCGW_NON(page) { \ - nevent.remainclock -= vramop.vramwait; \ - STOREINTELWORD(mem + address + VRAM_STEP*(page), value); \ - vramupdate[address & 0x7fff] |= (1 << page); \ - vramupdate[(address + 1) & 0x7fff] |= (1 << page); \ - gdcs.grphdisp |= (1 << page); \ -} - -#define GRCGW_RMW(page) { \ - BYTE *vram; \ - nevent.remainclock -= vramop.grcgwait; \ - address &= 0x7fff; \ - vramupdate[address] |= (1 << page); \ - vramupdate[address + 1] |= (1 << page); \ - gdcs.grphdisp |= (1 << page); \ - vram = mem + address + (VRAM_STEP * (page)); \ - if (!(grcg.modereg & 1)) { \ - BYTE tmp; \ - tmp = (BYTE)value; \ - vram[VRAM0_B+0] &= (~tmp); \ - vram[VRAM0_B+0] |= (tmp & grcg.tile[0].b[0]); \ - tmp = (BYTE)(value >> 8); \ - vram[VRAM0_B+1] &= (~tmp); \ - vram[VRAM0_B+1] |= (tmp & grcg.tile[0].b[0]); \ - } \ - if (!(grcg.modereg & 2)) { \ - BYTE tmp; \ - tmp = (BYTE)value; \ - vram[VRAM0_R+0] &= (~tmp); \ - vram[VRAM0_R+0] |= (tmp & grcg.tile[1].b[0]); \ - tmp = (BYTE)(value >> 8); \ - vram[VRAM0_R+1] &= (~tmp); \ - vram[VRAM0_R+1] |= (tmp & grcg.tile[1].b[0]); \ - } \ - if (!(grcg.modereg & 4)) { \ - BYTE tmp; \ - tmp = (BYTE)value; \ - vram[VRAM0_G+0] &= (~tmp); \ - vram[VRAM0_G+0] |= (tmp & grcg.tile[2].b[0]); \ - tmp = (BYTE)(value >> 8); \ - vram[VRAM0_G+1] &= (~tmp); \ - vram[VRAM0_G+1] |= (tmp & grcg.tile[2].b[0]); \ - } \ - if (!(grcg.modereg & 8)) { \ - BYTE tmp; \ - tmp = (BYTE)value; \ - vram[VRAM0_E+0] &= (~tmp); \ - vram[VRAM0_E+0] |= (tmp & grcg.tile[3].b[0]); \ - tmp = (BYTE)(value >> 8); \ - vram[VRAM0_E+1] &= (~tmp); \ - vram[VRAM0_E+1] |= (tmp & grcg.tile[3].b[0]); \ - } \ -} - -#define GRCGW_TDW(page) { \ - BYTE *vram; \ - nevent.remainclock -= vramop.grcgwait; \ - address &= 0x7fff; \ - vramupdate[address] |= (1 << page); \ - vramupdate[address + 1] |= (1 << page); \ - gdcs.grphdisp |= (1 << page); \ - vram = mem + address + (VRAM_STEP * (page)); \ - if (!(grcg.modereg & 1)) { \ - vram[VRAM0_B+0] = grcg.tile[0].b[0]; \ - vram[VRAM0_B+1] = grcg.tile[0].b[0]; \ - } \ - if (!(grcg.modereg & 2)) { \ - vram[VRAM0_R+0] = grcg.tile[1].b[0]; \ - vram[VRAM0_R+1] = grcg.tile[1].b[0]; \ - } \ - if (!(grcg.modereg & 4)) { \ - vram[VRAM0_G+0] = grcg.tile[2].b[0]; \ - vram[VRAM0_G+1] = grcg.tile[2].b[0]; \ - } \ - if (!(grcg.modereg & 8)) { \ - vram[VRAM0_E+0] = grcg.tile[3].b[0]; \ - vram[VRAM0_E+1] = grcg.tile[3].b[0]; \ - } \ - (void)value; \ -} - -static void MEMCALL vramw_w0(UINT32 address, UINT16 value) GRCGW_NON(0) -static void MEMCALL vramw_w1(UINT32 address, UINT16 value) GRCGW_NON(1) -static void MEMCALL grcgw_rmw0(UINT32 address, UINT16 value) GRCGW_RMW(0) -static void MEMCALL grcgw_rmw1(UINT32 address, UINT16 value) GRCGW_RMW(1) -static void MEMCALL grcgw_tdw0(UINT32 address, UINT16 value) GRCGW_TDW(0) -static void MEMCALL grcgw_tdw1(UINT32 address, UINT16 value) GRCGW_TDW(1) - -static void MEMCALL egcw_wt(UINT32 address, UINT16 value) { - - if (!(address & 1)) { - egc_write_w(address, value); - } - else { - if (!(egc.sft & 0x1000)) { - egc_write(address, (BYTE)value); - egc_write(address + 1, (BYTE)(value >> 8)); - } - else { - egc_write(address + 1, (BYTE)(value >> 8)); - egc_write(address, (BYTE)value); - } - } -} - -static void MEMCALL emmcw_wt(UINT32 address, UINT16 value) { - - BYTE *ptr; - - if ((address & 0x3fff) != 0x3fff) { - ptr = extmem.pageptr[(address >> 14) & 3] + (address & 0x3fff); - STOREINTELWORD(ptr, value); - } - else { - extmem.pageptr[(address >> 14) & 3][0x3fff] = (BYTE)value; - extmem.pageptr[((address + 1)>> 14) & 3][0] = (BYTE)(value >> 8); - } -} - -static void MEMCALL i286w_wn(UINT32 address, UINT16 value) { +static void MEMCALL memnc_wr16(UINT32 address, REG16 value) { (void)address; (void)value; } -// ---- read word - -static UINT16 MEMCALL i286w_rd(UINT32 address) { - - BYTE *ptr; - - ptr = mem + (address & extmem.adrsmask); - return(LOADINTELWORD(ptr)); -} - -static UINT16 MEMCALL tramw_rd(UINT32 address) { - - nevent.remainclock -= vramop.tramwait; - if (address < (0xa4000 - 1)) { - return(LOADINTELWORD(mem + address)); - } - else if (address == 0xa3fff) { - return(mem[address] + (font[cgwindow.low] << 8)); - } - else if (address < 0xa4fff) { - if (address & 1) { - UINT16 ret; - ret = font[cgwindow.high + ((address >> 1) & 0x0f)]; - ret += font[cgwindow.low + (((address + 1) >> 1) & 0x0f)] << 8; - return(ret); - } - else { - UINT16 ret; - ret = font[cgwindow.low + ((address >> 1) & 0x0f)]; - ret += font[cgwindow.high + ((address >> 1) & 0x0f)] << 8; - return(ret); - } - } - else if (address == 0xa4fff) { - return((mem[0xa5000] << 8) | font[cgwindow.high + 15]); - } - return(LOADINTELWORD(mem + address)); -} - -static UINT16 MEMCALL vramw_r0(UINT32 address) { - - nevent.remainclock -= vramop.vramwait; - return(LOADINTELWORD(mem + address)); -} - -static UINT16 MEMCALL vramw_r1(UINT32 address) { - - nevent.remainclock -= vramop.vramwait; - return(LOADINTELWORD(mem + address + VRAM_STEP)); -} - -static UINT16 MEMCALL grcgw_tcr0(UINT32 address) { - - BYTE *vram; - UINT16 ret; - - nevent.remainclock -= vramop.grcgwait; - ret = 0; - vram = mem + (address & 0x7fff); - if (!(grcg.modereg & 1)) { - ret |= LOADINTELWORD(vram + VRAM0_B) ^ grcg.tile[0].w; - } - if (!(grcg.modereg & 2)) { - ret |= LOADINTELWORD(vram + VRAM0_R) ^ grcg.tile[1].w; - } - if (!(grcg.modereg & 4)) { - ret |= LOADINTELWORD(vram + VRAM0_G) ^ grcg.tile[2].w; - } - if (!(grcg.modereg & 8)) { - ret |= LOADINTELWORD(vram + VRAM0_E) ^ grcg.tile[3].w; - } - return(~ret); -} - -static UINT16 MEMCALL grcgw_tcr1(UINT32 address) { - - BYTE *vram; - UINT16 ret; - - nevent.remainclock -= vramop.grcgwait; - ret = 0; - vram = mem + (address & 0x7fff); - if (!(grcg.modereg & 1)) { - ret |= LOADINTELWORD(vram + VRAM1_B) ^ grcg.tile[0].w; - } - if (!(grcg.modereg & 2)) { - ret |= LOADINTELWORD(vram + VRAM1_R) ^ grcg.tile[1].w; - } - if (!(grcg.modereg & 4)) { - ret |= LOADINTELWORD(vram + VRAM1_G) ^ grcg.tile[2].w; - } - if (!(grcg.modereg & 8)) { - ret |= LOADINTELWORD(vram + VRAM1_E) ^ grcg.tile[3].w; - } - return(~ret); -} - -static UINT16 MEMCALL egcw_rd(UINT32 address) { - - UINT16 ret; - - if (!(address & 1)) { - return(egc_read_w(address)); - } - else { - if (!(egc.sft & 0x1000)) { - ret = egc_read(address); - ret += (UINT16)egc_read(address + 1) << 8; - return(ret); - } - else { - UINT16 ret; - ret = (UINT16)egc_read(address + 1) << 8; - ret += egc_read(address); - return(ret); - } - } -} - -static UINT16 MEMCALL emmcw_rd(UINT32 address) { - - BYTE *ptr; - - ptr = extmem.pageptr[(address >> 14) & 3] + (address & 0x3fff); - return(LOADINTELWORD(ptr)); -} - -static UINT16 MEMCALL i286w_itf(UINT32 address) { - - if (itf.bank) { - address = ITF_ADRS + (address & 0x7fff); - } - return(LOADINTELWORD(mem + address)); -} - - // ---- table -typedef void (MEMCALL * MEM8WRITE)(UINT32 address, BYTE value); -typedef BYTE (MEMCALL * MEM8READ)(UINT32 address); -typedef void (MEMCALL * MEM16WRITE)(UINT32 address, UINT16 value); -typedef UINT16 (MEMCALL * MEM16READ)(UINT32 address); - -static MEM8WRITE memory_write[] = { - i286_wt, i286_wt, i286_wt, i286_wt, // 00 - i286_wt, i286_wt, i286_wt, i286_wt, // 20 - i286_wt, i286_wt, i286_wt, i286_wt, // 40 - i286_wt, i286_wt, i286_wt, i286_wt, // 60 - i286_wt, i286_wt, i286_wt, i286_wt, // 80 - tram_wt, vram_w0, vram_w0, vram_w0, // a0 - emmc_wt, emmc_wt, i286_wn, i286_wn, // c0 - vram_w0, i286_wn, i286_wn, i286_wn}; // e0 - -static MEM8READ memory_read[] = { - i286_rd, i286_rd, i286_rd, i286_rd, // 00 - i286_rd, i286_rd, i286_rd, i286_rd, // 20 - i286_rd, i286_rd, i286_rd, i286_rd, // 40 - i286_rd, i286_rd, i286_rd, i286_rd, // 60 - 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 - -static MEM16WRITE memword_write[] = { - i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 00 - i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 20 - i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 40 - i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 60 - i286w_wt, i286w_wt, i286w_wt, i286w_wt, // 80 - tramw_wt, vramw_w0, vramw_w0, vramw_w0, // a0 - emmcw_wt, emmcw_wt, i286w_wn, i286w_wn, // c0 - vramw_w0, i286w_wn, i286w_wn, i286w_wn}; // e0 - -static MEM16READ memword_read[] = { - i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 00 - i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 20 - i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 40 - i286w_rd, i286w_rd, i286w_rd, i286w_rd, // 60 - 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 - -static const MEM8WRITE vram_write[] = { - vram_w0, vram_w1, vram_w0, vram_w1, // 00 - vram_w0, vram_w1, vram_w0, vram_w1, // 40 - grcg_tdw0, grcg_tdw1, egc_wt, egc_wt, // 80 tdw/tcr - grcg_rmw0, grcg_rmw1, egc_wt, egc_wt}; // c0 rmw - -static const MEM8READ vram_read[] = { - vram_r0, vram_r1, vram_r0, vram_r1, // 00 - vram_r0, vram_r1, vram_r0, vram_r1, // 40 - grcg_tcr0, grcg_tcr1, egc_rd, egc_rd, // 80 tdw/tcr - vram_r0, vram_r1, egc_rd, egc_rd}; // c0 rmw - -static const MEM16WRITE vramw_write[] = { - vramw_w0, vramw_w1, vramw_w0, vramw_w1, // 00 - vramw_w0, vramw_w1, vramw_w0, vramw_w1, // 40 - grcgw_tdw0, grcgw_tdw1, egcw_wt, egcw_wt, // 80 tdw/tcr - grcgw_rmw0, grcgw_rmw1, egcw_wt, egcw_wt}; // c0 rmw - -static const MEM16READ vramw_read[] = { - vramw_r0, vramw_r1, vramw_r0, vramw_r1, // 00 - vramw_r0, vramw_r1, vramw_r0, vramw_r1, // 40 - grcgw_tcr0, grcgw_tcr1, egcw_rd, egcw_rd, // 80 tdw/tcr - vramw_r0, vramw_r1, egcw_rd, egcw_rd}; // c0 rmw +typedef void (MEMCALL * MEM8WRITE)(UINT32 address, REG8 value); +typedef REG8 (MEMCALL * MEM8READ)(UINT32 address); +typedef void (MEMCALL * MEM16WRITE)(UINT32 address, REG16 value); +typedef REG16 (MEMCALL * MEM16READ)(UINT32 address); + +typedef struct { + MEM8READ rd8[0x20]; + MEM8WRITE wr8[0x20]; + MEM16READ rd16[0x20]; + MEM16WRITE wr16[0x20]; +} MEMFN; + +typedef struct { + MEM8READ brd8; // E8000-F7FFF byte read + MEM8READ ird8; // F8000-FFFFF byte read + MEM8WRITE bwr8; // E8000-FFFFF byte write + MEM16READ brd16; // E8000-F7FFF word read + MEM16READ ird16; // F8000-FFFFF word read + MEM16WRITE bwr16; // F8000-FFFFF word write +} MMAPTBL; + +typedef struct { + MEM8READ rd8; + MEM8WRITE wr8; + MEM16READ rd16; + MEM16WRITE wr16; +} VACCTBL; + +static MEMFN memfn = { + {memmain_rd8, memmain_rd8, memmain_rd8, memmain_rd8, // 00 + memmain_rd8, memmain_rd8, memmain_rd8, memmain_rd8, // 20 + memmain_rd8, memmain_rd8, memmain_rd8, memmain_rd8, // 40 + memmain_rd8, memmain_rd8, memmain_rd8, memmain_rd8, // 60 + memmain_rd8, memmain_rd8, memmain_rd8, memmain_rd8, // 80 + memtram_rd8, memvram0_rd8, memvram0_rd8, memvram0_rd8, // a0 + memems_rd8, memems_rd8, memmain_rd8, memmain_rd8, // c0 + memvram0_rd8, memmain_rd8, memmain_rd8, memf800_rd8}, // e0 + + {memmain_wr8, memmain_wr8, memmain_wr8, memmain_wr8, // 00 + memmain_wr8, memmain_wr8, memmain_wr8, memmain_wr8, // 20 + memmain_wr8, memmain_wr8, memmain_wr8, memmain_wr8, // 40 + memmain_wr8, memmain_wr8, memmain_wr8, memmain_wr8, // 60 + memmain_wr8, memmain_wr8, memmain_wr8, memmain_wr8, // 80 + memtram_wr8, memvram0_wr8, memvram0_wr8, memvram0_wr8, // a0 + memems_wr8, memems_wr8, memd000_wr8, memd000_wr8, // c0 + memvram0_wr8, memnc_wr8, memnc_wr8, memnc_wr8}, // e0 + + {memmain_rd16, memmain_rd16, memmain_rd16, memmain_rd16, // 00 + memmain_rd16, memmain_rd16, memmain_rd16, memmain_rd16, // 20 + memmain_rd16, memmain_rd16, memmain_rd16, memmain_rd16, // 40 + memmain_rd16, memmain_rd16, memmain_rd16, memmain_rd16, // 60 + memmain_rd16, memmain_rd16, memmain_rd16, memmain_rd16, // 80 + memtram_rd16, memvram0_rd16, memvram0_rd16, memvram0_rd16, // a0 + memems_rd16, memems_rd16, memmain_rd16, memmain_rd16, // c0 + memvram0_rd16, memmain_rd16, memmain_rd16, memf800_rd16}, // e0 + + {memmain_wr16, memmain_wr16, memmain_wr16, memmain_wr16, // 00 + memmain_wr16, memmain_wr16, memmain_wr16, memmain_wr16, // 20 + memmain_wr16, memmain_wr16, memmain_wr16, memmain_wr16, // 40 + memmain_wr16, memmain_wr16, memmain_wr16, memmain_wr16, // 60 + memmain_wr16, memmain_wr16, memmain_wr16, memmain_wr16, // 80 + memtram_wr16, memvram0_wr16, memvram0_wr16, memvram0_wr16, // a0 + memems_wr16, memems_wr16, memd000_wr16, memd000_wr16, // c0 + memvram0_wr16, memnc_wr16, memnc_wr16, memnc_wr16}}; // e0 + +static const MMAPTBL mmaptbl[2] = { + {memmain_rd8, memf800_rd8, memnc_wr8, + memmain_rd16, memf800_rd16, memnc_wr16}, + {memf800_rd8, memf800_rd8, memepson_wr8, + memf800_rd16, memf800_rd16, memepson_wr16}}; + +static const VACCTBL vacctbl[0x10] = { + {memvram0_rd8, memvram0_wr8, memvram0_rd16, memvram0_wr16}, // 00 + {memvram1_rd8, memvram1_wr8, memvram1_rd16, memvram1_wr16}, + {memvram0_rd8, memvram0_wr8, memvram0_rd16, memvram0_wr16}, + {memvram1_rd8, memvram1_wr8, memvram1_rd16, memvram1_wr16}, + {memvram0_rd8, memvram0_wr8, memvram0_rd16, memvram0_wr16}, // 40 + {memvram1_rd8, memvram1_wr8, memvram1_rd16, memvram1_wr16}, + {memvram0_rd8, memvram0_wr8, memvram0_rd16, memvram0_wr16}, + {memvram1_rd8, memvram1_wr8, memvram1_rd16, memvram1_wr16}, + {memtcr0_rd8, memtdw0_wr8, memtcr0_rd16, memtdw0_wr16}, // 80 + {memtcr1_rd8, memtdw1_wr8, memtcr1_rd16, memtdw1_wr16}, + {memegc_rd8, memegc_wr8, memegc_rd16, memegc_wr16}, + {memegc_rd8, memegc_wr8, memegc_rd16, memegc_wr16}, + {memvram0_rd8, memrmw0_wr8, memvram0_rd16, memrmw0_wr16}, // c0 + {memvram1_rd8, memrmw1_wr8, memvram1_rd16, memrmw1_wr16}, + {memegc_rd8, memegc_wr8, memegc_rd16, memegc_wr16}, + {memegc_rd8, memegc_wr8, memegc_rd16, memegc_wr16}}; + + +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[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[0xe8000 >> 15] = mm->bwr16; + memfn.wr16[0xf0000 >> 15] = mm->bwr16; + memfn.wr16[0xf8000 >> 15] = mm->bwr16; +} +void MEMCALL i286_vram_dispatch(UINT func) { -static BYTE MEMCALL i286_nonram_r(UINT32 address) { +const VACCTBL *vacc; - (void)address; - return(0xff); -} + vacc = vacctbl + (func & 0x0f); -static UINT16 MEMCALL i286_nonram_rw(UINT32 address) { + memfn.rd8[0xa8000 >> 15] = vacc->rd8; + memfn.rd8[0xb0000 >> 15] = vacc->rd8; + memfn.rd8[0xb8000 >> 15] = vacc->rd8; + memfn.rd8[0xe0000 >> 15] = vacc->rd8; - (void)address; - return(0xffff); -} + memfn.wr8[0xa8000 >> 15] = vacc->wr8; + memfn.wr8[0xb0000 >> 15] = vacc->wr8; + memfn.wr8[0xb8000 >> 15] = vacc->wr8; + memfn.wr8[0xe0000 >> 15] = vacc->wr8; -void MEMCALL i286_vram_dispatch(UINT func) { + memfn.rd16[0xa8000 >> 15] = vacc->rd16; + memfn.rd16[0xb0000 >> 15] = vacc->rd16; + memfn.rd16[0xb8000 >> 15] = vacc->rd16; + memfn.rd16[0xe0000 >> 15] = vacc->rd16; - UINT proc; + memfn.wr16[0xa8000 >> 15] = vacc->wr16; + memfn.wr16[0xb0000 >> 15] = vacc->wr16; + memfn.wr16[0xb8000 >> 15] = vacc->wr16; + memfn.wr16[0xe0000 >> 15] = vacc->wr16; - proc = func & 0x0f; - memory_write[0xa8000 >> 15] = vram_write[proc]; - memory_write[0xb0000 >> 15] = vram_write[proc]; - memory_write[0xb8000 >> 15] = vram_write[proc]; - memory_write[0xe0000 >> 15] = vram_write[proc]; - - memory_read[0xa8000 >> 15] = vram_read[proc]; - memory_read[0xb0000 >> 15] = vram_read[proc]; - memory_read[0xb8000 >> 15] = vram_read[proc]; - memory_read[0xe0000 >> 15] = vram_read[proc]; - - memword_write[0xa8000 >> 15] = vramw_write[proc]; - memword_write[0xb0000 >> 15] = vramw_write[proc]; - memword_write[0xb8000 >> 15] = vramw_write[proc]; - memword_write[0xe0000 >> 15] = vramw_write[proc]; - - memword_read[0xa8000 >> 15] = vramw_read[proc]; - memword_read[0xb0000 >> 15] = vramw_read[proc]; - memword_read[0xb8000 >> 15] = vramw_read[proc]; - memword_read[0xe0000 >> 15] = vramw_read[proc]; - - if (!(func & 0x10)) { // degital - memory_write[0xe0000 >> 15] = i286_wn; - memword_write[0xe0000 >> 15] = i286w_wn; - memory_read[0xe0000 >> 15] = i286_nonram_r; - memword_read[0xe0000 >> 15] = i286_nonram_rw; + if (!(func & (1 << VOPBIT_ANALOG))) { // digital + memfn.rd8[0xe0000 >> 15] = memnc_rd8; + memfn.wr8[0xe0000 >> 15] = memnc_wr8; + memfn.rd16[0xe0000 >> 15] = memnc_rd16; + memfn.wr16[0xe0000 >> 15] = memnc_wr16; } } -BYTE MEMCALL i286_memoryread(UINT32 address) { +REG8 MEMCALL i286_memoryread(UINT32 address) { if (address < I286_MEMREADMAX) { return(mem[address]); } #if defined(USE_HIMEM) - else if (address >= 0x10fff0) { + else if (address >= USE_HIMEM) { address -= 0x100000; - if (address < extmemmng_size) { - return(extmemmng_ptr[address]); + if (address < CPU_EXTMEMSIZE) { + return(CPU_EXTMEM[address]); } else { return(0xff); @@ -741,32 +240,32 @@ BYTE MEMCALL i286_memoryread(UINT32 addr } #endif else { - return(memory_read[(address >> 15) & 0x1f](address)); + return(memfn.rd8[(address >> 15) & 0x1f](address)); } } -UINT16 MEMCALL i286_memoryread_w(UINT32 address) { +REG16 MEMCALL i286_memoryread_w(UINT32 address) { - UINT16 ret; + REG16 ret; if (address < (I286_MEMREADMAX - 1)) { return(LOADINTELWORD(mem + address)); } #if defined(USE_HIMEM) - else if (address >= (0x10fff0 - 1)) { + else if (address >= (USE_HIMEM - 1)) { address -= 0x100000; - if (address == (0x00fff0 - 1)) { + if (address == (USE_HIMEM - 0x100000 - 1)) { ret = mem[0x100000 + address]; } - else if (address < extmemmng_size) { - ret = extmemmng_ptr[address]; + else if (address < CPU_EXTMEMSIZE) { + ret = CPU_EXTMEM[address]; } else { ret = 0xff; } address++; - if (address < extmemmng_size) { - ret += extmemmng_ptr[address] << 8; + if (address < CPU_EXTMEMSIZE) { + ret += CPU_EXTMEM[address] << 8; } else { ret += 0xff00; @@ -775,69 +274,69 @@ UINT16 MEMCALL i286_memoryread_w(UINT32 } #endif else if ((address & 0x7fff) != 0x7fff) { - return(memword_read[(address >> 15) & 0x1f](address)); + return(memfn.rd16[(address >> 15) & 0x1f](address)); } else { - ret = memory_read[(address >> 15) & 0x1f](address); + ret = memfn.rd8[(address >> 15) & 0x1f](address); address++; - ret += memory_read[(address >> 15) & 0x1f](address) << 8; + ret += memfn.rd8[(address >> 15) & 0x1f](address) << 8; return(ret); } } -void MEMCALL i286_memorywrite(UINT32 address, BYTE value) { +void MEMCALL i286_memorywrite(UINT32 address, REG8 value) { if (address < I286_MEMWRITEMAX) { - mem[address] = value; + mem[address] = (UINT8)value; } #if defined(USE_HIMEM) - else if (address >= 0x10fff0) { + else if (address >= USE_HIMEM) { address -= 0x100000; - if (address < extmemmng_size) { - extmemmng_ptr[address] = value; + if (address < CPU_EXTMEMSIZE) { + CPU_EXTMEM[address] = (UINT8)value; } } #endif else { - memory_write[(address >> 15) & 0x1f](address, value); + memfn.wr8[(address >> 15) & 0x1f](address, value); } } -void MEMCALL i286_memorywrite_w(UINT32 address, UINT16 value) { +void MEMCALL i286_memorywrite_w(UINT32 address, REG16 value) { if (address < (I286_MEMWRITEMAX - 1)) { STOREINTELWORD(mem + address, value); } #if defined(USE_HIMEM) - else if (address >= (0x10fff0 - 1)) { + else if (address >= (USE_HIMEM - 1)) { address -= 0x100000; - if (address == (0x00fff0 - 1)) { - mem[address] = (BYTE)value; + if (address == (USE_HIMEM - 0x100000 - 1)) { + mem[address] = (UINT8)value; } - else if (address < extmemmng_size) { - extmemmng_ptr[address] = (BYTE)value; + else if (address < CPU_EXTMEMSIZE) { + CPU_EXTMEM[address] = (UINT8)value; } address++; - if (address < extmemmng_size) { - extmemmng_ptr[address] = (BYTE)(value >> 8); + if (address < CPU_EXTMEMSIZE) { + CPU_EXTMEM[address] = (UINT8)(value >> 8); } } #endif else if ((address & 0x7fff) != 0x7fff) { - memword_write[(address >> 15) & 0x1f](address, value); + memfn.wr16[(address >> 15) & 0x1f](address, value); } else { - memory_write[(address >> 15) & 0x1f](address, (BYTE)value); + memfn.wr8[(address >> 15) & 0x1f](address, (UINT8)value); address++; - memory_write[(address >> 15) & 0x1f](address, (BYTE)(value >> 8)); + memfn.wr8[(address >> 15) & 0x1f](address, (UINT8)(value >> 8)); } } -BYTE MEMCALL i286_membyte_read(UINT seg, UINT off) { +REG8 MEMCALL meml_read8(UINT seg, UINT off) { UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < I286_MEMREADMAX) { return(mem[address]); } @@ -846,11 +345,11 @@ BYTE MEMCALL i286_membyte_read(UINT seg, } } -UINT16 MEMCALL i286_memword_read(UINT seg, UINT off) { +REG16 MEMCALL meml_read16(UINT seg, UINT off) { UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < (I286_MEMREADMAX - 1)) { return(LOADINTELWORD(mem + address)); } @@ -859,40 +358,41 @@ UINT16 MEMCALL i286_memword_read(UINT se } } -void MEMCALL i286_membyte_write(UINT seg, UINT off, BYTE value) { +void MEMCALL meml_write8(UINT seg, UINT off, REG8 value) { UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < I286_MEMWRITEMAX) { - mem[address] = value; + mem[address] = (UINT8)value; } else { i286_memorywrite(address, value); } } -void MEMCALL i286_memword_write(UINT seg, UINT off, UINT16 value) { +void MEMCALL meml_write16(UINT seg, UINT off, REG16 value) { UINT32 address; - address = (seg << 4) + off; + address = (seg << 4) + LOW16(off); if (address < (I286_MEMWRITEMAX - 1)) { - STOREINTELWORD(mem + address, value); + STOREINTELWORD(mem + address, value); } else { i286_memorywrite_w(address, value); } } -void MEMCALL i286_memstr_read(UINT seg, UINT off, void *dat, UINT leng) { +void MEMCALL meml_readstr(UINT seg, UINT off, void *dat, UINT leng) { - BYTE *out; + UINT8 *out; UINT32 adrs; UINT size; - out = (BYTE *)dat; + out = (UINT8 *)dat; adrs = seg << 4; + off = LOW16(off); if ((I286_MEMREADMAX >= 0x10000) && (adrs < (I286_MEMREADMAX - 0x10000))) { if (leng) { @@ -917,20 +417,20 @@ void MEMCALL i286_memstr_read(UINT seg, else { while(leng--) { *out++ = i286_memoryread(adrs + off); - off = (off + 1) & 0xffff; + off = LOW16(off + 1); } } } -void MEMCALL i286_memstr_write(UINT seg, UINT off, - const void *dat, UINT leng) { +void MEMCALL meml_writestr(UINT seg, UINT off, const void *dat, UINT leng) { - BYTE *out; + UINT8 *out; UINT32 adrs; UINT size; - out = (BYTE *)dat; + out = (UINT8 *)dat; adrs = seg << 4; + off = LOW16(off); if ((I286_MEMWRITEMAX >= 0x10000) && (adrs < (I286_MEMWRITEMAX - 0x10000))) { if (leng) { @@ -955,18 +455,18 @@ void MEMCALL i286_memstr_write(UINT seg, else { while(leng--) { i286_memorywrite(adrs + off, *out++); - off = (off + 1) & 0xffff; + off = LOW16(off + 1); } } } -void MEMCALL i286_memx_read(UINT32 address, void *dat, UINT leng) { +void MEMCALL meml_read(UINT32 address, void *dat, UINT leng) { if ((address + leng) < I286_MEMREADMAX) { CopyMemory(dat, mem + address, leng); } else { - BYTE *out = (BYTE *)dat; + UINT8 *out = (UINT8 *)dat; if (address < I286_MEMREADMAX) { CopyMemory(out, mem + address, I286_MEMREADMAX - address); out += I286_MEMREADMAX - address; @@ -979,15 +479,15 @@ void MEMCALL i286_memx_read(UINT32 addre } } -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; +const UINT8 *out; if ((address + leng) < I286_MEMWRITEMAX) { CopyMemory(mem + address, dat, leng); } else { - out = (BYTE *)dat; + out = (UINT8 *)dat; if (address < I286_MEMWRITEMAX) { CopyMemory(mem + address, out, I286_MEMWRITEMAX - address); out += I286_MEMWRITEMAX - address; @@ -1000,3 +500,5 @@ const BYTE *out; } } +#endif +