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UNIF: Initial implementation of game overrides (move exiting ones out of mapper code)

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This commit is contained in:
retro-wertz
2019-07-02 19:34:55 +08:00
parent 06c99179be
commit 7e9b3b146d
4 changed files with 104 additions and 37 deletions
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65
src/unif.c
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@@ -60,6 +60,8 @@ CartInfo UNIFCart;
static int vramo;
static int mirrortodo;
static int submapper;
static int cspecial;
static uint8 *boardname;
static uint8 *sboardname;
@@ -317,6 +319,65 @@ static int LoadCHR(FCEUFILE *fp) {
return(1);
}
#define NO_BUSC 1
struct _unif_db {
uint64 partialMD5;
char *boardname;
int submapper;
int mirroring;
int special; /* TODO: for bus conflicts, set 1 for no bus_conflict */
};
static struct _unif_db unif_db[] = {
{ 0x8ebad077d08e6c78ULL, "A65AS", 1, -1 }, /* 3-in-1 (N080) [p1][U][!], not a real submapper */
{ 0x117181328eb1ad23ULL, "CNROM", 0, MI_H, NO_BUSC }, /* 75 Bingo (Sachen-English) [U] */
{ 0x616851e56946893bULL, "RESETNROM-XIN1", 0, MI_V }, /* Sheng Tian 2-in-1(Unl,ResetBase)[p1].unf */
{ 0x4cd729b5ae23a3cfULL, "RESETNROM-XIN1", 0, MI_H }, /* Sheng Tian 2-in-1(Unl,ResetBase)[p2].unf */
{ 0, NULL, -1, -1, -1 } /* end of the line */
};
static void CheckHashInfo(void) {
unsigned x = 0;
uint64 partialMD5 = 0;
for (x = 0; x < 8; x++)
partialMD5 |= (uint64)UNIFCart.MD5[15 - x] << (x * 8);
x = 0;
do {
if (partialMD5 == unif_db[x].partialMD5) {
FCEU_printf("\n");
FCEU_PrintError(" The UNIF header contains incorrect information.\n");
FCEU_PrintError(" For now, the information will be corrected in RAM.\n");
if (unif_db[x].boardname != NULL && strcmp((char*)unif_db[x].boardname, (char*)sboardname) != 0) {
FCEU_printf(" Boardname should be set to %s\n", unif_db[x].boardname);
sboardname = unif_db[x].boardname;
}
if (unif_db[x].submapper >= 0 && unif_db[x].submapper != submapper) {
FCEU_PrintError(" Submapper should be set to %d\n", unif_db[x].submapper);
submapper = unif_db[x].submapper;
}
if (unif_db[x].mirroring >= 0 && unif_db[x].mirroring != mirrortodo) {
static char *stuffo[6] = { "Horizontal", "Vertical", "$2000", "$2400", "\"Four-screen\"", "Controlled by Mapper Hardware" };
FCEU_PrintError(" Mirroring should be set to %s\n", stuffo[unif_db[x].mirroring]);
mirrortodo = unif_db[x].mirroring;
}
if (unif_db[x].special >= 0 && unif_db[x].special != cspecial) {
if (!(strcmp((char*)sboardname, "CNROM"))) {
FCEU_PrintError(" Special flags applied, No bus conflict.\n");
cspecial = unif_db[x].special;
}
}
/* todo special case aka, dipswitches, busc-like in fk23c/a, etc */
FCEU_printf("\n");
}
x++;
} while (unif_db[x].partialMD5 > 0);
}
#define BMCFLAG_FORCE4 0x01
#define BMCFLAG_16KCHRR 0x02
#define BMCFLAG_32KCHRR 0x04
@@ -595,6 +656,8 @@ static int InitializeBoard(void) {
PRGchip_max = prg_chip_count - 1;
if (chr_chip_count)
CHRchip_max = chr_chip_count - 1;
UNIFCart.submapper = submapper;
GameInfo->cspecial = cspecial;
bmap[x].init(&UNIFCart);
return(1);
@@ -655,6 +718,8 @@ int UNIFLoad(const char *name, FCEUFILE *fp) {
memcpy(GameInfo->MD5, UNIFCart.MD5, sizeof(UNIFCart.MD5));
}
CheckHashInfo();
if (!InitializeBoard())
goto aborto;