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This commit is contained in:
retro-wertz
2017-10-15 02:07:42 +08:00
parent e428160996
commit ebca2248d0
75 changed files with 641 additions and 582 deletions
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45
src/boards/onebus.c
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@@ -27,20 +27,21 @@
#include "mapinc.h"
// General Purpose Registers
/* General Purpose Registers */
static uint8 cpu410x[16], ppu201x[16], apu40xx[64];
// IRQ Registers
/* IRQ Registers */
static uint8 IRQCount, IRQa, IRQReload;
#define IRQLatch cpu410x[0x1] // accc cccc, a = 0, AD12 switching, a = 1, HSYNC switching
// MMC3 Registers
static uint8 inv_hack = 0; // some OneBus Systems have swapped PRG reg commans in MMC3 inplementation,
// trying to autodetect unusual behavior, due not to add a new mapper.
/* MMC3 Registers */
static uint8 inv_hack = 0; /* some OneBus Systems have swapped PRG reg commans in MMC3 inplementation,
* trying to autodetect unusual behavior, due not to add a new mapper.
*/
#define mmc3cmd cpu410x[0x5] // pcv- ----, p - program swap, c - video swap, v - internal VRAM enable
#define mirror cpu410x[0x6] // ---- ---m, m = 0 - H, m = 1 - V
// APU Registers
/* APU Registers */
static uint8 pcm_enable = 0, pcm_irq = 0;
static int16 pcm_addr, pcm_size, pcm_latch, pcm_clock = 0xE1;
@@ -70,22 +71,24 @@ static void PSync(void) {
uint32 block = ((cpu410x[0x0] & 0xf0) << 4) + (cpu410x[0xa] & (~mask));
uint32 pswap = (mmc3cmd & 0x40) << 8;
// uint8 bank0 = (cpu410x[0xb] & 0x40)?(~1):(cpu410x[0x7]);
// uint8 bank1 = cpu410x[0x8];
// uint8 bank2 = (cpu410x[0xb] & 0x40)?(cpu410x[0x9]):(~1);
// uint8 bank3 = ~0;
#if 0
uint8 bank0 = (cpu410x[0xb] & 0x40)?(~1):(cpu410x[0x7]);
uint8 bank1 = cpu410x[0x8];
uint8 bank2 = (cpu410x[0xb] & 0x40)?(cpu410x[0x9]):(~1);
uint8 bank3 = ~0;
#endif
uint8 bank0 = cpu410x[0x7 ^ inv_hack];
uint8 bank1 = cpu410x[0x8 ^ inv_hack];
uint8 bank2 = (cpu410x[0xb] & 0x40) ? (cpu410x[0x9]) : (~1);
uint8 bank3 = ~0;
// FCEU_printf(" PRG: %04x [%02x]",0x8000^pswap,block | (bank0 & mask));
/* FCEU_printf(" PRG: %04x [%02x]",0x8000^pswap,block | (bank0 & mask)); */
setprg8(0x8000 ^ pswap, block | (bank0 & mask));
// FCEU_printf(" %04x [%02x]",0xa000^pswap,block | (bank1 & mask));
/* FCEU_printf(" %04x [%02x]",0xa000^pswap,block | (bank1 & mask)); */
setprg8(0xa000, block | (bank1 & mask));
// FCEU_printf(" %04x [%02x]",0xc000^pswap,block | (bank2 & mask));
/* FCEU_printf(" %04x [%02x]",0xc000^pswap,block | (bank2 & mask)); */
setprg8(0xc000 ^ pswap, block | (bank2 & mask));
// FCEU_printf(" %04x [%02x]\n",0xe000^pswap,block | (bank3 & mask));
/* FCEU_printf(" %04x [%02x]\n",0xe000^pswap,block | (bank3 & mask)); */
setprg8(0xe000, block | (bank3 & mask));
}
@@ -122,9 +125,9 @@ static void Sync(void) {
}
static DECLFW(UNLOneBusWriteCPU410X) {
// FCEU_printf("CPU %04x:%04x\n",A,V);
/* FCEU_printf("CPU %04x:%04x\n",A,V); */
switch (A & 0xf) {
case 0x1: IRQLatch = V & 0xfe; break; // íå ïî äàòàøèòó
case 0x1: IRQLatch = V & 0xfe; break; /* íå ïî äàòàøèòó */
case 0x2: IRQReload = 1; break;
case 0x3: X6502_IRQEnd(FCEU_IQEXT); IRQa = 0; break;
case 0x4: IRQa = 1; break;
@@ -135,13 +138,13 @@ static DECLFW(UNLOneBusWriteCPU410X) {
}
static DECLFW(UNLOneBusWritePPU201X) {
// FCEU_printf("PPU %04x:%04x\n",A,V);
/* FCEU_printf("PPU %04x:%04x\n",A,V); */
ppu201x[A & 0x0f] = V;
Sync();
}
static DECLFW(UNLOneBusWriteMMC3) {
// FCEU_printf("MMC %04x:%04x\n",A,V);
/* FCEU_printf("MMC %04x:%04x\n",A,V); */
switch (A & 0xe001) {
case 0x8000: mmc3cmd = (mmc3cmd & 0x38) | (V & 0xc7); Sync(); break;
case 0x8001:
@@ -180,7 +183,7 @@ static void UNLOneBusIRQHook(void) {
}
static DECLFW(UNLOneBusWriteAPU40XX) {
// if(((A & 0x3f)!=0x16) && ((apu40xx[0x30] & 0x10) || ((A & 0x3f)>0x17)))FCEU_printf("APU %04x:%04x\n",A,V);
/* if(((A & 0x3f)!=0x16) && ((apu40xx[0x30] & 0x10) || ((A & 0x3f)>0x17)))FCEU_printf("APU %04x:%04x\n",A,V); */
apu40xx[A & 0x3f] = V;
switch (A & 0x3f) {
case 0x12:
@@ -211,7 +214,7 @@ static DECLFW(UNLOneBusWriteAPU40XX) {
static DECLFR(UNLOneBusReadAPU40XX) {
uint8 result = defapuread[A & 0x3f](A);
// FCEU_printf("read %04x, %02x\n",A,result);
/* FCEU_printf("read %04x, %02x\n",A,result); */
switch (A & 0x3f) {
case 0x15:
if (apu40xx[0x30] & 0x10) {
@@ -286,7 +289,7 @@ void UNLOneBus_Init(CartInfo *info) {
info->Power = UNLOneBusPower;
info->Reset = UNLOneBusReset;
if (((*(uint32*)&(info->MD5)) == 0x305fcdc3) || // PowerJoy Supermax Carts
if (((*(uint32*)&(info->MD5)) == 0x305fcdc3) || /* PowerJoy Supermax Carts */
((*(uint32*)&(info->MD5)) == 0x6abfce8e))
inv_hack = 0xf;