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Add mapper 446 using mapper emulation cores that can be included in other multi-ASIC mappers.

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NewRisingSun
2025-09-01 01:13:46 +02:00
parent 3544ff567e
commit a2fdeee096
57 changed files with 3063 additions and 441 deletions
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20
src/boards/252_253.c
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@@ -19,7 +19,8 @@
*/
#include "mapinc.h"
#include "vrc2and4.h"
#include "asic_vrc2and4.h"
#include "wram.h"
static uint8 *CHRRAM;
static uint32 CHRRAMSize;
@@ -39,17 +40,17 @@ static void sync () {
int bank;
VRC24_syncWRAM(0);
VRC24_syncPRG(0x01F, 0x000);
for (bank =0; bank <8; bank++) setchr1r((VRC24_chr[bank] &mask) ==compare? 0x10: 0x00, bank <<10, VRC24_chr[bank]);
for (bank =0; bank <8; bank++) setchr1r((VRC24_getCHRBank(bank) &mask) ==compare? 0x10: 0x00, bank <<10, VRC24_getCHRBank(bank));
VRC24_syncMirror();
}
static DECLFW(Mapper252_253_interceptPPUWrite) {
if (~RefreshAddr &0x2000) {
int bank =VRC24_chr[RefreshAddr >>10 &7];
int bank =VRC24_getCHRBank(RefreshAddr >>10 &7);
switch(bank) {
case 0x88: mask =0xFC; compare =0x4C; VRC24_Sync(); break;
case 0xC2: mask =0xFE; compare =0x7C; VRC24_Sync(); break;
case 0xC8: mask =0xFE; compare =0x04; VRC24_Sync(); break;
case 0x88: mask =0xFC; compare =0x4C; sync(); break;
case 0xC2: mask =0xFE; compare =0x7C; sync(); break;
case 0xC8: mask =0xFE; compare =0x04; sync(); break;
}
}
writePPU(A, V);
@@ -76,10 +77,12 @@ void Mapper252_253_close(void) {
FCEU_gfree(CHRRAM);
CHRRAM =NULL;
}
WRAM_close();
}
void Mapper252_Init (CartInfo *info) {
VRC24_init(info, sync, 0x4, 0x8, 1, 1, 0);
VRC4_init(info, sync, 0x4, 0x8, 1, NULL, NULL, NULL, NULL, NULL);
WRAM_init(info, 8);
info->Power =Mapper252_power;
info->Close =Mapper252_253_close;
AddExState(stateRegs, ~0, 0, 0);
@@ -91,7 +94,8 @@ void Mapper252_Init (CartInfo *info) {
}
void Mapper253_Init (CartInfo *info) {
VRC24_init(info, sync, 0x4, 0x8, 1, 1, 0);
VRC4_init(info, sync, 0x4, 0x8, 1, NULL, NULL, NULL, NULL, NULL);
WRAM_init(info, 8);
info->Power =Mapper253_power;
info->Close =Mapper252_253_close;
AddExState(stateRegs, ~0, 0, 0);