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Mapper 268, submappers 6 and 7

This commit is contained in:
Alexey 'Cluster' Avdyukhin 2022-12-12 23:38:56 +04:00
parent 47c2ce5a38
commit 9ae27c7ded
1 changed files with 17 additions and 6 deletions
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23
src/boards/coolboy.cpp
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@ -76,6 +76,7 @@
#include "mapinc.h"
#include "mmc3.h"
#include "../ines.h"
const int ROM_CHIP = 0x00;
const int WRAM_CHIP = 0x10;
@ -97,6 +98,7 @@ static uint8 cfi_mode = 0;
static uint16 regs_base = 0;
static uint8 flag23 = 0;
static uint8 flag45 = 0;
static uint8 flag67 = 0;
// Macronix 256-mbit memory CFI data
const uint8 cfi_data[] =
@ -214,6 +216,11 @@ static void AA6023PW(uint32 A, uint8 V) {
}
int chip = !flash_save ? ROM_CHIP : FLASH_CHIP;
// There are ROMs with multiple PRG ROM chips
int chip_offset = 0;
if (flag67 && EXPREGS[0] & 0b00001000) {
chip_offset += ROM_size;
}
// Very weird mode
// Last banks are first in this mode, ignored when MMC3_cmd&0x40
@ -228,7 +235,7 @@ static void AA6023PW(uint32 A, uint8 V) {
if (!(CREGS[3] & 0x10)) {
// Regular MMC3 mode but can be extended to 2MiB
setprg8r(chip, A, (((base << 4) & ~mask)) | (V & mask));
setprg8r(chip, A, ((((base << 4) & ~mask)) | (V & mask)) + chip_offset);
}
else {
// NROM mode
@ -238,10 +245,12 @@ static void AA6023PW(uint32 A, uint8 V) {
emask = (CREGS[3] & 0b00001100) | ((A & 0x4000) >> 13);
else // 16kb mode
emask = CREGS[3] & 0b00001110;
setprg8r(chip, A, ((base << 4) & ~mask) // 7-4 bits are from base
| (V & mask) // ... or from MM3 internal regs, depends on mask
| emask // 3-1 (or 3-2 when (EXPREGS[3]&0x0C is set) from EXPREGS[3]
| ((A & 0x2000) >> 13)); // 0th just as is
setprg8r(chip, A, (
((base << 4) & ~mask) // 7-4 bits are from base
| (V & mask) // ... or from MM3 internal regs, depends on mask
| emask // 3-1 (or 3-2 when (EXPREGS[3]&0x0C is set) from EXPREGS[3]
| ((A & 0x2000) >> 13) // 0th just as is
) + chip_offset); // For multi-chip ROMs
}
}
@ -391,11 +400,13 @@ void CommonInit(CartInfo* info, int submapper)
break;
case 0:
case 4:
case 6:
regs_base = 0x6000;
break;
case 1:
case 3:
case 5:
case 7:
regs_base = 0x5000;
break;
default:
@ -403,6 +414,7 @@ void CommonInit(CartInfo* info, int submapper)
}
flag23 = (submapper == 2) || (submapper == 3);
flag45 = (submapper == 4) || (submapper == 5);
flag67 = (submapper == 6) || (submapper == 7);
info->Power = AA6023Power;
info->Reset = AA6023Reset;
info->Close = AA6023Close;
@ -415,7 +427,6 @@ void CommonInit(CartInfo* info, int submapper)
CFI[i * 2] = CFI[i * 2 + 1] = cfi_data[i];
}
SetupCartPRGMapping(CFI_CHIP, CFI, sizeof(cfi_data) * 2, 0);
Flash = (uint8*)FCEU_gmalloc(PRGsize[ROM_CHIP]);
for (int i = 0; i < PRGsize[ROM_CHIP]; i++) {
Flash[i] = PRGptr[ROM_CHIP][i % PRGsize[ROM_CHIP]];