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Add mapper 598.

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This commit is contained in:
NewRisingSun
2026-02-06 14:56:06 +01:00
parent d74d4c18b6
commit ed6b26bb52
3 changed files with 14 additions and 14 deletions
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25
src/boards/598.c
View File

@@ -20,28 +20,27 @@
#include "mapinc.h"
static uint8 reg[4];
static uint8 reg[2];
static void sync () {
int prg = reg[3] <<3 | reg[1] &0x07;
if (reg[3] &0x08)
setprg32(0x8000, prg >>1);
else {
setprg16(0x8000, prg);
setprg16(0xC000, prg |7);
setprg16(0x8000, reg[0] &0x18 | reg[1] &0x07);
setprg16(0xC000, reg[0] &0x18 | 0x07);
setchr8(0);
switch(reg[0] &0x03) {
case 0x00: setmirror(MI_0); break;
case 0x01: setmirror(MI_V); break;
case 0x02: setmirror(MI_H); break;
case 0x03: setmirror(MI_1); break;
}
setchr4(0x0000, reg[3] <<5 | reg[1] >>3 &0x1F);
setchr4(0x1000, reg[3] <<5 | reg[2] >>3 &0x1F);
setmirror(reg[3] &0x04? MI_H: MI_V);
}
static DECLFW (writeReg) {
reg[A >>13 &3] = V;
reg[A >>14 &1] = V;
sync();
}
static void reset () {
reg[0] = reg[1] = reg[2] = reg[3] = 0;
reg[0] = reg[1] = 0;
sync();
}
@@ -59,5 +58,5 @@ void Mapper598_Init (CartInfo *info) {
info->Power = power;
info->Reset = reset;
GameStateRestore = stateRestore;
AddExState(reg, 4, 0, "REGS");
AddExState(reg, 2, 0, "REGS");
}

1
src/ines.c
View File

@@ -1019,6 +1019,7 @@ INES_BOARD_BEGIN()
INES_BOARD( "4MROM-512", 595, Mapper595_Init )
INES_BOARD( "FC-49", 596, Mapper596_Init )
INES_BOARD( "GN-27", 597, Mapper597_Init )
INES_BOARD( "3936", 598, Mapper598_Init )
INES_BOARD_END()
static uint32 iNES_get_mapper_id(void)

2
src/ines.h
View File

@@ -488,7 +488,7 @@ void Mapper594_Init(CartInfo *);
void Mapper595_Init(CartInfo *);
void Mapper596_Init(CartInfo *);
void Mapper597_Init(CartInfo *);
void Mapper598_Init(CartInfo *);
void FFE_Init(CartInfo *);
#endif