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Fix savestates in I8039 core

This commit is contained in:
Barry Harris 2012-01-05 11:48:34 +00:00
parent 048e6c39b7
commit d11e07d0e9
1 changed files with 24 additions and 16 deletions
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40
src/cpu/i8039/i8039.cpp
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@ -94,7 +94,6 @@ typedef struct
I8039_PAIR PREVPC; /* previous program counter */
I8039_PAIR PC; /* program counter */
UINT8 A, SP, PSW;
UINT8 RAM[128];
UINT8 bus, f1; /* Bus data, and flag1 */
UINT8 P1, P2; /* Internal Port 1 and 2 latched outputs */
UINT8 EA; /* latched EA input */
@ -113,6 +112,8 @@ typedef struct
static I8039_Regs R;
static int i8039_ICount;
static UINT8 *RAM;
#define I8039_INLINE static inline
#define change_pc(newpc) R.PC.w.l = (newpc)
@ -169,7 +170,7 @@ typedef struct {
#define M_By ((R.PSW & B_FLAG))
#define M_Bn (!M_By)
#define intRAM R.RAM
#define intRAM RAM
#define regPTR R.regPtr
#define R0 intRAM[regPTR ]
@ -683,13 +684,15 @@ void I8039Init(int (*irqcallback)(int))
{
DebugCPU_I8039Initted = 1;
RAM = (UINT8*)malloc(128 * sizeof(UINT8));
R.irq_callback = irqcallback;
R.cpu_feature = 0;
R.ram_mask = 0x7F;
R.int_rom_size = 0x800;
/* not changed on reset*/
memset(R.RAM, 0x00, 128);
memset(RAM, 0x00, 128);
R.timer = 0;
I8039IORead = I8039DummyReadIo;
@ -819,6 +822,11 @@ void I8039Exit()
if (!DebugCPU_I8039Initted) bprintf(PRINT_ERROR, _T("I8039Exit called without init\n"));
#endif
if (RAM) {
free(RAM);
RAM = NULL;
}
i8039_ICount = 0;
DebugCPU_I8039Initted = 0;
@ -965,22 +973,22 @@ int I8039Scan(int nAction, int *pnMin)
struct BurnArea ba;
char szName[16];
if ((nAction & ACB_DRIVER_DATA) == 0) {
return 1;
}
if (pnMin != NULL) {
*pnMin = 0x029678;
*pnMin = 0x029719;
}
sprintf(szName, "I8039");
ba.Data = &R;
ba.nLen = sizeof(R);
ba.nAddress = 0;
ba.szName = szName;
BurnAcb(&ba);
SCAN_VAR(i8039_ICount);
if (nAction & ACB_DRIVER_DATA) {
ScanVar(&R, sizeof(I8039_Regs), "I8039Regs");
sprintf(szName, "I8039RAM");
memset(&ba, 0, sizeof(ba));
ba.Data = RAM;
ba.nLen = 128;
ba.szName = szName;
BurnAcb(&ba);
SCAN_VAR(i8039_ICount);
}
return 0;
}