|
|
| version 1.15, 2004/03/06 18:07:37 | version 1.23, 2005/03/05 16:47:04 |
|---|---|
| Line 30 | Line 30 |
| #include "compiler.h" | #include "compiler.h" |
| #include "cpu.h" | #include "cpu.h" |
| #include "ia32.mcr" | #include "ia32.mcr" |
| #if defined(USE_FPU) | |
| #include "instructions/fpu/fp.h" | |
| #endif | |
| #include "pccore.h" | #include "pccore.h" |
| #include "iocore.h" | #include "iocore.h" |
| #include "dmap.h" | #include "dmax86.h" |
| #include "bios.h" | #include "bios.h" |
| #if defined(IA32_REBOOT_ON_PANIC) | #if defined(IA32_REBOOT_ON_PANIC) |
| #include "pccore.h" | #include "pccore.h" |
| Line 50 ia32_initreg(void) | Line 53 ia32_initreg(void) |
| CPU_EDX = (CPU_FAMILY << 8) | (CPU_MODEL << 4) | CPU_STEPPING; | CPU_EDX = (CPU_FAMILY << 8) | (CPU_MODEL << 4) | CPU_STEPPING; |
| CPU_EFLAG = 2; | CPU_EFLAG = 2; |
| CPU_CR0 = CPU_CR0_CD | CPU_CR0_NW | CPU_CR0_ET; | CPU_CR0 = CPU_CR0_CD | CPU_CR0_NW | CPU_CR0_ET; |
| #ifndef USE_FPU | #if defined(USE_FPU) |
| CPU_CR0 |= CPU_CR0_EM | CPU_CR0_NE; | CPU_CR0 |= CPU_CR0_EM | CPU_CR0_NE; |
| CPU_CR0 &= ~CPU_CR0_MP; | CPU_CR0 &= ~CPU_CR0_MP; |
| #else | |
| CPU_CR0 |= CPU_CR0_ET; | |
| #endif | #endif |
| CPU_MXCSR = 0x1f80; | CPU_MXCSR = 0x1f80; |
| CPU_GDTR_LIMIT = 0xffff; | CPU_GDTR_LIMIT = 0xffff; |
| Line 60 ia32_initreg(void) | Line 65 ia32_initreg(void) |
| #if CPU_FAMILY == 4 | #if CPU_FAMILY == 4 |
| CPU_STATSAVE.cpu_regs.dr[6] = 0xffff1ff0; | CPU_STATSAVE.cpu_regs.dr[6] = 0xffff1ff0; |
| #elif (CPU_FAMILY == 5) || (CPU_FAMILY == 6) | #elif CPU_FAMILY >= 5 |
| CPU_STATSAVE.cpu_regs.dr[6] = 0xffff0ff0; | CPU_STATSAVE.cpu_regs.dr[6] = 0xffff0ff0; |
| CPU_STATSAVE.cpu_regs.dr[7] = 0x00000400; | CPU_STATSAVE.cpu_regs.dr[7] = 0x00000400; |
| #endif | #endif |
| Line 76 ia32_initreg(void) | Line 81 ia32_initreg(void) |
| CPU_ADRSMASK = 0x000fffff; | CPU_ADRSMASK = 0x000fffff; |
| tlb_init(); | tlb_init(); |
| #if defined(USE_FPU) | |
| fpu_init(); | |
| #endif | |
| } | } |
| void | void |
| Line 95 ia32shut(void) | Line 103 ia32shut(void) |
| } | } |
| void | void |
| ia32a20enable(BOOL enable) | |
| { | |
| #if (CPU_FAMILY == 3) | |
| CPU_ADRSMASK = (enable)?0x00ffffff:0x00ffffff; | |
| #else | |
| CPU_ADRSMASK = (enable)?0xffffffff:0x00ffffff; | |
| #endif | |
| } | |
| void | |
| ia32(void) | ia32(void) |
| { | { |
| int rv; | int rv; |
| Line 117 ia32(void) | Line 135 ia32(void) |
| break; | break; |
| } | } |
| #if defined(IA32_SUPPORT_DEBUG_REGISTER) | |
| do { | |
| exec_1step(); | |
| if (dmac.working) { | |
| dmax86(); | |
| } | |
| } while (CPU_REMCLOCK > 0); | |
| #else | |
| if (CPU_TRAP) { | if (CPU_TRAP) { |
| do { | do { |
| exec_1step(); | exec_1step(); |
| if (CPU_TRAP) { | if (CPU_TRAP) { |
| ia32_interrupt(1); | CPU_DR6 |= CPU_DR6_BS; |
| INTERRUPT(1, TRUE, FALSE, 0); | |
| } | } |
| dmap_i286(); | dmax86(); |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| } else if (dmac.working) { | } else if (dmac.working) { |
| do { | do { |
| exec_1step(); | exec_1step(); |
| dmap_i286(); | dmax86(); |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| } else { | } else { |
| do { | do { |
| exec_1step(); | exec_1step(); |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| } | } |
| #endif | |
| } | } |
| void | void |
| Line 162 ia32_step(void) | Line 190 ia32_step(void) |
| do { | do { |
| exec_1step(); | exec_1step(); |
| #if !defined(IA32_SUPPORT_DEBUG_REGISTER) | |
| if (CPU_TRAP) { | if (CPU_TRAP) { |
| ia32_interrupt(1); | CPU_DR6 |= CPU_DR6_BS; |
| INTERRUPT(1, TRUE, FALSE, 0); | |
| } | |
| #endif | |
| if (dmac.working) { | |
| dmax86(); | |
| } | } |
| dmap_i286(); | |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| } | } |
| void CPUCALL | void CPUCALL |
| ia32_interrupt(int vect) | ia32_interrupt(int vect, int soft) |
| { | { |
| INTERRUPT(vect, 0, 0, 0); | // TRACEOUT(("int (%x, %x) PE=%d VM=%d", vect, soft, CPU_STAT_PM, CPU_STAT_VM86)); |
| if (!soft) { | |
| INTERRUPT(vect, FALSE, FALSE, 0); | |
| } | |
| else { | |
| if (CPU_STAT_VM86 && (CPU_STAT_IOPL < CPU_IOPL3) && (soft == -1)) { | |
| TRACEOUT(("BIOS interrupt: VM86 && IOPL < 3 && INTn")); | |
| } | |
| INTERRUPT(vect, TRUE, FALSE, 0); | |
| } | |
| } | } |
| Line 197 ia32_panic(const char *str, ...) | Line 239 ia32_panic(const char *str, ...) |
| #if defined(IA32_REBOOT_ON_PANIC) | #if defined(IA32_REBOOT_ON_PANIC) |
| VERBOSE(("ia32_panic: reboot")); | VERBOSE(("ia32_panic: reboot")); |
| pccore_cfgupdate(); | |
| pccore_reset(); | pccore_reset(); |
| siglongjmp(exec_1step_jmpbuf, 2); | siglongjmp(exec_1step_jmpbuf, 2); |
| #else | #else |
| Line 242 ia32_bioscall(void) | Line 283 ia32_bioscall(void) |
| UINT32 adrs; | UINT32 adrs; |
| if (!CPU_STAT_PM || CPU_STAT_VM86) { | if (!CPU_STAT_PM || CPU_STAT_VM86) { |
| #if 1 | |
| adrs = (CPU_EIP - 1) + ((CPU_REGS_SREG(CPU_CS_INDEX)) << 4); | |
| #else | |
| adrs = (CPU_EIP - 1) + CPU_STAT_CS_BASE; | adrs = (CPU_EIP - 1) + CPU_STAT_CS_BASE; |
| #endif | |
| if ((adrs >= 0xf8000) && (adrs < 0x100000)) { | if ((adrs >= 0xf8000) && (adrs < 0x100000)) { |
| biosfunc(adrs); | if (biosfunc(adrs)) { |
| CPU_PREFETCH_CLEAR(); | |
| } | |
| if (!CPU_STAT_PM || CPU_STAT_VM86) { | if (!CPU_STAT_PM || CPU_STAT_VM86) { |
| CPU_SET_SEGREG(CPU_ES_INDEX, CPU_ES); | CPU_SET_SEGREG(CPU_ES_INDEX, CPU_ES); |
| CPU_SET_SEGREG(CPU_CS_INDEX, CPU_CS); | CPU_SET_SEGREG(CPU_CS_INDEX, CPU_CS); |