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M227/242/449: Added DIP switch.

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This commit is contained in:
NewRisingSun
2023-03-27 21:24:28 +02:00
parent 846c31aa68
commit 9877d3e227
2 changed files with 48 additions and 5 deletions
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17
src/boards/449.c
View File

@@ -23,12 +23,14 @@
static uint16 latchAddr;
static uint8 latchData;
static uint8 dipswitch;
static uint8 dipselect;
static SFORMAT StateRegs[] =
{
{ &latchAddr, 2, "ADDR" },
{ &latchData, 1, "DATA" },
{ &latchData, 1, "DIPS" },
{ &dipselect, 1, "DSEL" },
{ 0 }
};
@@ -58,12 +60,20 @@ static void Mapper449_Sync(void)
static DECLFR(Mapper449_Read)
{
if (dipselect)
return dipswitch &0x3;
else
if (latchAddr &0x200)
return CartBR(A | dipswitch);
return CartBR(A | dipswitch &0xF);
else
return CartBR(A);
}
static DECLFW(Mapper449_WriteDIPSelect)
{
dipselect =V &1;
}
static DECLFW(Mapper449_WriteLatch)
{
latchData =V;
@@ -73,15 +83,16 @@ static DECLFW(Mapper449_WriteLatch)
static void Mapper449_Reset(void)
{
dipswitch =(dipswitch +1) &0xF;
dipswitch++;
latchAddr =latchData =0;
Mapper449_Sync();
}
static void Mapper449_Power(void)
{
dipswitch =latchAddr =latchData =0;
dipselect =dipswitch =latchAddr =latchData =0;
Mapper449_Sync();
SetWriteHandler(0x6000, 0x7FFF, Mapper449_WriteDIPSelect);
SetWriteHandler(0x8000, 0xFFFF, Mapper449_WriteLatch);
SetReadHandler(0x6000, 0x7FFF, CartBR);
SetReadHandler(0x8000, 0xFFFF, Mapper449_Read);

36
src/boards/addrlatch.c
View File

@@ -415,9 +415,25 @@ static void M227Sync(void) {
setprg8r(0x10, 0x6000, 0);
}
static DECLFR(M227Read) {
if (latche &0x0400)
return CartBR(A | dipswitch);
else
return CartBR(A);
}
static void Mapper227_Reset(void) {
dipswitch++;
dipswitch &= 15;
latche = 0;
M227Sync();
}
void Mapper227_Init(CartInfo *info) {
submapper =info->submapper;
Latch_Init(info, M227Sync, NULL, 0x0000, 0x8000, 0xFFFF, 1);
Latch_Init(info, M227Sync, M227Read, 0x0000, 0x8000, 0xFFFF, info->iNES2 && (info->PRGRamSize || info->PRGRamSaveSize) || info->battery);
info->Reset = Mapper227_Reset;
AddExState(&dipswitch, 1, 0, "DIPSW");
}
/*------------------ Map 229 ---------------------------*/
@@ -511,9 +527,25 @@ static void M242Sync(void) {
setprg8r(0x10, 0x6000, 0);
}
static DECLFR(M242Read) {
if (latche &0x0100)
return CartBR(A | dipswitch);
else
return CartBR(A);
}
static void Mapper242_Reset(void) {
dipswitch++;
dipswitch &= 31;
latche = 0;
M242Sync();
}
void Mapper242_Init(CartInfo *info) {
M242TwoChips = info->PRGRomSize &0x20000 && info->PRGRomSize >0x20000;
Latch_Init(info, M242Sync, NULL, 0x0000, 0x8000, 0xFFFF, 1);
Latch_Init(info, M242Sync, M242Read, 0x0000, 0x8000, 0xFFFF, info->iNES2 && (info->PRGRamSize || info->PRGRamSaveSize) || info->battery);
info->Reset = Mapper242_Reset;
AddExState(&dipswitch, 1, 0, "DIPSW");
}
/*------------------ Map 288 ---------------------------*/