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| version 1.22, 2005/02/08 09:57:26 | version 1.33, 2012/01/24 17:17:12 |
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| Line 1 | Line 1 |
| /* $Id$ */ | |
| /* | /* |
| * Copyright (c) 2002-2003 NONAKA Kimihiro | * Copyright (c) 2002-2003 NONAKA Kimihiro |
| * All rights reserved. | * All rights reserved. |
| Line 12 | Line 10 |
| * 2. Redistributions in binary form must reproduce the above copyright | * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the | * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. | * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products | |
| * derived from this software without specific prior written permission. | |
| * | * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| Line 30 | Line 26 |
| #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 "dmax86.h" | #include "dmax86.h" |
| #include "bios.h" | #include "bios.h" |
| #if defined(IA32_REBOOT_ON_PANIC) | |
| #include "pccore.h" | |
| #endif | |
| void | void |
| Line 49 ia32_initreg(void) | Line 45 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; |
| #ifndef USE_FPU | #if defined(USE_FPU) |
| CPU_CR0 &= ~CPU_CR0_EM; | |
| CPU_CR0 |= CPU_CR0_ET; | |
| #else | |
| 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 | CPU_CR0_ET); |
| #endif | #endif |
| CPU_MXCSR = 0x1f80; | CPU_MXCSR = 0x1f80; |
| CPU_GDTR_BASE = 0x0; | |
| CPU_GDTR_LIMIT = 0xffff; | CPU_GDTR_LIMIT = 0xffff; |
| CPU_IDTR_BASE = 0x0; | |
| CPU_IDTR_LIMIT = 0xffff; | CPU_IDTR_LIMIT = 0xffff; |
| CPU_LDTR_BASE = 0x0; | |
| CPU_LDTR_LIMIT = 0xffff; | |
| CPU_TR_BASE = 0x0; | |
| CPU_TR_LIMIT = 0xffff; | |
| #if CPU_FAMILY == 4 | |
| CPU_STATSAVE.cpu_regs.dr[6] = 0xffff1ff0; | CPU_STATSAVE.cpu_regs.dr[6] = 0xffff1ff0; |
| #elif CPU_FAMILY >= 5 | |
| CPU_STATSAVE.cpu_regs.dr[6] = 0xffff0ff0; | |
| CPU_STATSAVE.cpu_regs.dr[7] = 0x00000400; | |
| #endif | |
| for (i = 0; i < CPU_SEGREG_NUM; ++i) { | for (i = 0; i < CPU_SEGREG_NUM; ++i) { |
| CPU_STAT_SREG_INIT(i); | segdesc_init(i, 0, &CPU_STAT_SREG(i)); |
| } | } |
| CPU_LDTR_LIMIT = 0xffff; | LOAD_SEGREG(CPU_CS_INDEX, 0xf000); |
| CPU_TR_LIMIT = 0xffff; | CPU_STAT_CS_BASE = 0xffff0000; |
| CPU_SET_SEGREG(CPU_CS_INDEX, 0xf000); | |
| CPU_EIP = 0xfff0; | CPU_EIP = 0xfff0; |
| CPU_ADRSMASK = 0x000fffff; | CPU_ADRSMASK = 0x000fffff; |
| tlb_init(); | tlb_init(); |
| #if defined(USE_FPU) | |
| fpu_init(); | |
| #endif | |
| } | } |
| void | void |
| Line 97 ia32shut(void) | Line 99 ia32shut(void) |
| void | void |
| ia32a20enable(BOOL enable) | ia32a20enable(BOOL enable) |
| { | { |
| #if (CPU_FAMILY == 3) | |
| CPU_ADRSMASK = (enable)?0x00ffffff:0x00ffffff; | |
| #else | |
| CPU_ADRSMASK = (enable)?0xffffffff:0x00ffffff; | CPU_ADRSMASK = (enable)?0xffffffff:0x00ffffff; |
| #endif | |
| } | } |
| void | void |
| Line 127 ia32(void) | Line 126 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) { |
| CPU_DR6 |= CPU_DR6_BS; | CPU_DR6 |= CPU_DR6_BS; |
| INTERRUPT(1, TRUE, FALSE, 0); | INTERRUPT(1, INTR_TYPE_EXCEPTION); |
| } | } |
| dmax86(); | dmax86(); |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| Line 154 ia32(void) | Line 145 ia32(void) |
| exec_1step(); | exec_1step(); |
| } while (CPU_REMCLOCK > 0); | } while (CPU_REMCLOCK > 0); |
| } | } |
| #endif | |
| } | } |
| void | void |
| Line 182 ia32_step(void) | Line 172 ia32_step(void) |
| do { | do { |
| exec_1step(); | exec_1step(); |
| #if !defined(IA32_SUPPORT_DEBUG_REGISTER) | |
| if (CPU_TRAP) { | if (CPU_TRAP) { |
| CPU_DR6 |= CPU_DR6_BS; | CPU_DR6 |= CPU_DR6_BS; |
| INTERRUPT(1, TRUE, FALSE, 0); | INTERRUPT(1, INTR_TYPE_EXCEPTION); |
| } | } |
| #endif | |
| if (dmac.working) { | if (dmac.working) { |
| dmax86(); | dmax86(); |
| } | } |
| Line 200 ia32_interrupt(int vect, int soft) | Line 188 ia32_interrupt(int vect, int soft) |
| // TRACEOUT(("int (%x, %x) PE=%d VM=%d", vect, soft, CPU_STAT_PM, CPU_STAT_VM86)); | // TRACEOUT(("int (%x, %x) PE=%d VM=%d", vect, soft, CPU_STAT_PM, CPU_STAT_VM86)); |
| if (!soft) { | if (!soft) { |
| INTERRUPT(vect, FALSE, FALSE, 0); | INTERRUPT(vect, INTR_TYPE_EXTINTR); |
| } | } else { |
| else { | if (CPU_STAT_PM && CPU_STAT_VM86 && CPU_STAT_IOPL < CPU_IOPL3) { |
| if (CPU_STAT_VM86 && (CPU_STAT_IOPL < CPU_IOPL3) && (soft == -1)) { | VERBOSE(("ia32_interrupt: VM86 && IOPL < 3 && INTn")); |
| TRACEOUT(("BIOS interrupt: VM86 && IOPL < 3 && INTn")); | EXCEPTION(GP_EXCEPTION, 0); |
| } | } |
| INTERRUPT(vect, TRUE, FALSE, 0); | INTERRUPT(vect, INTR_TYPE_SOFTINTR); |
| } | } |
| } | } |
| Line 226 ia32_panic(const char *str, ...) | Line 214 ia32_panic(const char *str, ...) |
| va_end(ap); | va_end(ap); |
| strcat(buf, "\n"); | strcat(buf, "\n"); |
| strcat(buf, cpu_reg2str()); | strcat(buf, cpu_reg2str()); |
| VERBOSE(("%s", buf)); | |
| msgbox("ia32_panic", buf); | msgbox("ia32_panic", buf); |
| Line 276 ia32_bioscall(void) | Line 265 ia32_bioscall(void) |
| if (!CPU_STAT_PM || CPU_STAT_VM86) { | if (!CPU_STAT_PM || CPU_STAT_VM86) { |
| #if 1 | #if 1 |
| adrs = (CPU_EIP - 1) + ((CPU_REGS_SREG(CPU_CS_INDEX)) << 4); | adrs = CPU_PREV_EIP + (CPU_CS << 4); |
| #else | #else |
| adrs = (CPU_EIP - 1) + CPU_STAT_CS_BASE; | adrs = CPU_PREV_EIP + CPU_STAT_CS_BASE; |
| #endif | #endif |
| if ((adrs >= 0xf8000) && (adrs < 0x100000)) { | if ((adrs >= 0xf8000) && (adrs < 0x100000)) { |
| if (biosfunc(adrs)) { | if (biosfunc(adrs)) { |
| CPU_PREFETCH_CLEAR(); | /* Nothing to do */ |
| } | |
| if (!CPU_STAT_PM || CPU_STAT_VM86) { | |
| CPU_SET_SEGREG(CPU_ES_INDEX, CPU_ES); | |
| CPU_SET_SEGREG(CPU_CS_INDEX, CPU_CS); | |
| CPU_SET_SEGREG(CPU_SS_INDEX, CPU_SS); | |
| CPU_SET_SEGREG(CPU_DS_INDEX, CPU_DS); | |
| } | } |
| LOAD_SEGREG(CPU_ES_INDEX, CPU_ES); | |
| LOAD_SEGREG(CPU_CS_INDEX, CPU_CS); | |
| LOAD_SEGREG(CPU_SS_INDEX, CPU_SS); | |
| LOAD_SEGREG(CPU_DS_INDEX, CPU_DS); | |
| } | } |
| } | } |
| } | } |