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mapper cleanups (#494)

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* m215: Fix support for submapper 1 cart

* Switch UNL43272 to new Mapper242 implementation

* Merge mappers BMC-70in1/B and 236

* Merge 58/213/GK-192

* Assign GS-2004/GS-2014 to mapper 283

* Cleanup

Co-authored-by: negativeExponent <negativeExponent@users.noreply.github.com>
This commit is contained in:
negativeExponent
2022-02-05 10:19:33 -08:00
committed by GitHub
parent ffff495072
commit 17ad461e7d
10 changed files with 86 additions and 333 deletions
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53
src/boards/addrlatch.c
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@@ -19,6 +19,7 @@
*/
#include "mapinc.h"
#include "../ines.h"
static uint16 latche, latcheinit;
static uint16 addrreg0, addrreg1;
@@ -137,38 +138,9 @@ void BMCD1038_Init(CartInfo *info) {
AddExState(&dipswitch, 1, 0, "DIPSW");
}
/*------------------ UNL43272 ---------------------------*/
/* mapper much complex, including 16K bankswitching */
static void UNL43272Sync(void) {
if ((latche & 0x81) == 0x81) {
setprg32(0x8000, (latche & 0x38) >> 3);
} else
FCEU_printf("unrecognized command %04!\n", latche);
setchr8(0);
setmirror(0);
}
static DECLFR(UNL43272Read) {
if (latche & 0x400)
return CartBR(A & 0xFE);
else
return CartBR(A);
}
static void UNL43272Reset(void) {
latche = 0;
UNL43272Sync();
}
void UNL43272_Init(CartInfo *info) {
Latch_Init(info, UNL43272Sync, UNL43272Read, 0x0081, 0x8000, 0xFFFF, 0);
info->Reset = UNL43272Reset;
AddExState(&dipswitch, 1, 0, "DIPSW");
}
/*------------------ Map 058 ---------------------------*/
static void BMCGK192Sync(void) {
static void M58Sync(void) {
if (latche & 0x40) {
setprg16(0x8000, latche & 7);
setprg16(0xC000, latche & 7);
@@ -178,8 +150,8 @@ static void BMCGK192Sync(void) {
setmirror(((latche & 0x80) >> 7) ^ 1);
}
void BMCGK192_Init(CartInfo *info) {
Latch_Init(info, BMCGK192Sync, NULL, 0x0000, 0x8000, 0xFFFF, 0);
void Mapper58_Init(CartInfo *info) {
Latch_Init(info, M58Sync, NULL, 0x0000, 0x8000, 0xFFFF, 0);
}
/*------------------ Map 059 ---------------------------*/
@@ -373,20 +345,7 @@ void Mapper212_Init(CartInfo *info) {
/*------------------ Map 213 ---------------------------*/
static void M213Sync(void) {
if(latche & 0x40) {
setprg16(0x8000, (latche & 7));
setprg16(0xC000, (latche & 7));
} else {
setprg32(0x8000, (latche >> 1) & 3);
}
setchr8((latche >> 3) & 7);
setmirror(((latche & 1)^((latche >> 6) & 1)) ^ 1);
}
void Mapper213_Init(CartInfo *info) {
Latch_Init(info, M213Sync, NULL, 0x0000, 0x8000, 0xFFFF, 0);
}
/* SEE MAPPER 58 */
/*------------------ Map 214 ---------------------------*/
@@ -540,7 +499,7 @@ static void M242Sync(void) {
}
}
if (!hasBattery && (latche & 0x80) == 0x80)
if (!hasBattery && (latche & 0x80) == 0x80 && (ROM_size * 16) > 256)
/* CHR-RAM write protect hack, needed for some multicarts */
SetupCartCHRMapping(0, CHRptr[0], 0x2000, 0);
else