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| version 1.1, 2003/12/21 23:27:08 | version 1.11, 2004/01/25 06:26:39 |
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| Line 2 | Line 2 |
| #include "cpucore.h" | #include "cpucore.h" |
| I286CORE i286core; | I286CORE i286acore; |
| const UINT8 iflags[512] = { // Z_FLAG, S_FLAG, P_FLAG | const UINT8 iflags[512] = { // Z_FLAG, S_FLAG, P_FLAG |
| 0x44, 0x00, 0x00, 0x04, 0x00, 0x04, 0x04, 0x00, | 0x44, 0x00, 0x00, 0x04, 0x00, 0x04, 0x04, 0x00, |
| Line 73 const UINT8 iflags[512] = { // Z_FLA | Line 73 const UINT8 iflags[512] = { // Z_FLA |
| // ---- | // ---- |
| void i286a_reset(void) { | void i286a_initialize(void) { |
| ZeroMemory(&i286acore, sizeof(i286acore)); | |
| } | |
| void i286a_deinitialize(void) { | |
| if (CPU_EXTMEM) { | |
| _MFREE(CPU_EXTMEM); | |
| CPU_EXTMEM = NULL; | |
| CPU_EXTMEMSIZE = 0; | |
| } | |
| } | |
| static void i286a_initreg(void) { | |
| ZeroMemory(&CPU_STATSAVE, sizeof(CPU_STATSAVE)); | CPU_CS = 0xf000; |
| CPU_CS = 0x1fc0; | CS_BASE = 0xf0000; |
| CS_BASE = 0x1fc00; | CPU_IP = 0xfff0; |
| CPU_ADRSMASK = 0xfffff; | CPU_ADRSMASK = 0xfffff; |
| } | } |
| void i286a_reset(void) { | |
| #if 0 | |
| if (offsetof(I286CORE, m) != 120) { | |
| exit(1); | |
| } | |
| #endif | |
| ZeroMemory(&i286acore.s, sizeof(i286acore.s)); | |
| i286a_initreg(); | |
| } | |
| void i286a_shut(void) { | |
| ZeroMemory(&i286acore.s, offsetof(I286STAT, cpu_type)); | |
| i286a_initreg(); | |
| } | |
| void i286a_setextsize(UINT32 size) { | |
| if (CPU_EXTMEMSIZE != size) { | |
| _MFREE(CPU_EXTMEM); | |
| if (size) { | |
| CPU_EXTMEM = (BYTE *)_MALLOC(size + 16, "EXTMEM"); | |
| if (CPU_EXTMEM == NULL) { | |
| size = 0; | |
| } | |
| } | |
| CPU_EXTMEMSIZE = size; | |
| } | |
| i286acore.e.ems[0] = mem + 0xc0000; | |
| i286acore.e.ems[1] = mem + 0xc4000; | |
| i286acore.e.ems[2] = mem + 0xc8000; | |
| i286acore.e.ems[3] = mem + 0xcc000; | |
| } | |
| void i286a_setemm(UINT frame, UINT32 addr) { | |
| BYTE *ptr; | |
| frame &= 3; | |
| if (addr < USE_HIMEM) { | |
| ptr = mem + addr; | |
| } | |
| else if ((addr - 0x100000 + 0x4000) <= CPU_EXTMEMSIZE) { | |
| ptr = CPU_EXTMEM + (addr - 0x100000); | |
| } | |
| else { | |
| ptr = mem + 0xc0000 + (frame << 14); | |
| } | |
| i286acore.e.ems[frame] = ptr; | |
| } | |
| #if 0 // ---- test | |
| void ea_assert(UINT32 x) { | |
| TCHAR buf[32]; | |
| wsprintf(buf, _T("addr = %x [%.2x]"), x, i286_memoryread(x - 2)); | |
| MessageBox(NULL, buf, _T("!"), MB_OK); | |
| exit(1); | |
| } | |
| #endif | |