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| version 1.1, 2003/12/08 00:55:31 | version 1.19, 2012/01/08 07:45:08 |
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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 27 | Line 23 |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ | */ |
| #include "compiler.h" | |
| #include "cpu.h" | #include "cpu.h" |
| #ifdef USE_FPU | #include "memory.h" |
| #include "instructions/fpu/fpu.h" | #if defined(USE_FPU) |
| #include "instructions/fpu/fp.h" | |
| #endif | #endif |
| extern BOOL is_a20(void); /* in ../cpuio.c */ | |
| static char *cpu_reg2str(void) | char * |
| cpu_reg2str(void) | |
| { | { |
| static char buf[512]; | static char buf[512]; |
| sprintf(buf, | snprintf(buf, sizeof(buf), |
| "eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n" | "eax=%08x ecx=%08x edx=%08x ebx=%08x\n" |
| "eip=%08x esp=%08x ebp=%08x prev_eip=%08x\n" | "esp=%08x ebp=%08x esi=%08x edi=%08x\n" |
| "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x\n" | "eip=%08x prev_eip=%08x\n" |
| "eflag=%08x " | "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x\n" |
| /* ID VIP VIF AC VM RF NT IOPL OF DF IF TF SF ZF AF PF CF */ | "eflag=%08x " |
| "[ ID=%d VIP=%d VIF=%d AC=%d VM=%d RF=%d NT=%d IOPL=%d%d %s %s %s TF=%d %s %s %s %s %s ]\n" | /* ID VIP VIF AC VM RF NT IOPL OF DF IF TF SF ZF AF PF CF */ |
| "gdtr=%08x:%04x idtr=%08x:%04x ldtr=%04x tr=%04x\n" | "[ ID=%d VIP=%d VIF=%d AC=%d VM=%d RF=%d NT=%d IOPL=%d %s %s %s TF=%d %s %s %s %s %s ]\n" |
| "cr0=%08x cr1=%08x cr2=%08x cr3=%08x cr4=%08x mxcsr=%08x\n", | "gdtr=%08x:%04x idtr=%08x:%04x\n" |
| I286_EAX, I286_EBX, I286_ECX, I286_EDX, I286_ESI, I286_EDI, | "ldtr=%04x(%08x:%04x) tr=%04x(%08x:%04x)\n" |
| I286_EIP, I286_ESP, I286_EBP, CPU_PREV_EIP, | "cr0=%08x cr1=%08x cr2=%08x cr3=%08x cr4=%08x mxcsr=%08x", |
| I286_CS, I286_SS, I286_DS, I286_ES, I286_FS, I286_GS, | CPU_EAX, CPU_ECX, CPU_EDX, CPU_EBX, |
| I286_EFLAG, | CPU_ESP, CPU_EBP,CPU_ESI, CPU_EDI, |
| (I286_EFLAG & ID_FLAG) != 0, | CPU_EIP, CPU_PREV_EIP, |
| (I286_EFLAG & VIP_FLAG) != 0, | CPU_CS, CPU_SS, CPU_DS, CPU_ES, CPU_FS, CPU_GS, |
| (I286_EFLAG & VIF_FLAG) != 0, | CPU_EFLAG, |
| (I286_EFLAG & AC_FLAG) != 0, | (CPU_EFLAG & ID_FLAG) != 0, |
| (I286_EFLAG & VM_FLAG) != 0, | (CPU_EFLAG & VIP_FLAG) != 0, |
| (I286_EFLAG & RF_FLAG) != 0, | (CPU_EFLAG & VIF_FLAG) != 0, |
| (I286_EFLAG & NT_FLAG) != 0, | (CPU_EFLAG & AC_FLAG) != 0, |
| I286_EFLAG >> 13 & 1, | (CPU_EFLAG & VM_FLAG) != 0, |
| I286_EFLAG >> 12 & 1, | (CPU_EFLAG & RF_FLAG) != 0, |
| I286_EFLAG & O_FLAG ? "OV" : "NV", | (CPU_EFLAG & NT_FLAG) != 0, |
| I286_EFLAG & D_FLAG ? "UP" : "DN", | (int)((CPU_EFLAG >> 12) & 3), |
| I286_EFLAG & I_FLAG ? "DI" : "EI", | CPU_OV ? "OV" : "NV", |
| (I286_EFLAG & T_FLAG) != 0, | CPU_EFLAG & D_FLAG ? "UP" : "DN", |
| I286_EFLAG & S_FLAG ? "NG" : "PL", | CPU_EFLAG & I_FLAG ? "DI" : "EI", |
| I286_EFLAG & Z_FLAG ? "ZR" : "NZ", | (CPU_EFLAG & T_FLAG) != 0, |
| I286_EFLAG & A_FLAG ? "AC" : "NA", | CPU_EFLAG & S_FLAG ? "NG" : "PL", |
| I286_EFLAG & P_FLAG ? "PE" : "PO", | CPU_EFLAG & Z_FLAG ? "ZR" : "NZ", |
| I286_EFLAG & C_FLAG ? "CY" : "NC", | CPU_EFLAG & A_FLAG ? "AC" : "NA", |
| CPU_GDTR_BASE, CPU_GDTR_LIMIT, CPU_IDTR_BASE, CPU_IDTR_LIMIT, CPU_LDTR, CPU_TR, | CPU_EFLAG & P_FLAG ? "PE" : "PO", |
| CPU_CR0, CPU_CR1, CPU_CR2, CPU_CR3, CPU_CR4, CPU_MXCSR); | CPU_EFLAG & C_FLAG ? "CY" : "NC", |
| CPU_GDTR_BASE, CPU_GDTR_LIMIT, CPU_IDTR_BASE, CPU_IDTR_LIMIT, | |
| return buf; | CPU_LDTR, CPU_LDTR_BASE, CPU_LDTR_LIMIT, |
| } | CPU_TR, CPU_TR_BASE, CPU_TR_LIMIT, |
| CPU_CR0, CPU_CR1, CPU_CR2, CPU_CR3, CPU_CR4, CPU_MXCSR); | |
| #ifdef USE_FPU | |
| static char *fpu_reg2str(void) | |
| { | |
| static char buf[512]; | |
| char tmp[128]; | |
| int i; | |
| int no; | |
| strcpy(buf, "st=\n"); | |
| for(no = 0; no < 8; no++) | |
| { | |
| for(i = 9; i >= 0; i--) | |
| { | |
| sprintf(tmp, "%02x", FPU_ST[no][i]); | |
| strcat(buf, tmp); | |
| } | |
| strcat(buf, "\n"); | |
| } | |
| sprintf(tmp, | |
| "ctrl=%04x status=%04x tag=%04x\n" | |
| "inst=%08x%04x data=%08x%04x op=%03x\n", | |
| FPU_CTRLWORD, | |
| FPU_STATUSWORD, | |
| FPU_TAGWORD, | |
| FPU_INSTPTR_OFFSET, FPU_INSTPTR_SEG, | |
| FPU_DATAPTR_OFFSET, FPU_DATAPTR_SEG, | |
| FPU_LASTINSTOP); | |
| strcat(buf, tmp); | |
| return buf; | return buf; |
| } | } |
| static char * | |
| a20str(void) | |
| { | |
| static char buf[32]; | |
| snprintf(buf, sizeof(buf), "a20line=%s\n", | |
| (CPU_STAT_ADRSMASK == 0xffffffff) ? "enable" : "disable"); | |
| return buf; | |
| } | |
| void | |
| put_cpuinfo(void) | |
| { | |
| char buf[2048]; | |
| strcpy(buf, cpu_reg2str()); | |
| strcat(buf, "\n"); | |
| #if defined(USE_FPU) | |
| strcat(buf, fpu_reg2str()); | |
| strcat(buf, "\n"); | |
| #endif | #endif |
| strcat(buf, a20str()); | |
| static char *a20str(void) | printf(buf); |
| } | |
| void | |
| dbg_printf(const char *str, ...) | |
| { | { |
| static char buf[32]; | char buf[1024]; |
| va_list ap; | |
| va_start(ap, str); | |
| vsnprintf(buf, sizeof(buf), str, ap); | |
| va_end(ap); | |
| strcat(buf, "\n"); | |
| printf(buf); | |
| } | |
| sprintf(buf, "a20line=%s\n", is_a20() ? "enable" : "disable"); | void |
| return buf; | memory_dump(int idx, UINT32 madr) |
| { | |
| UINT32 addr; | |
| size_t size; | |
| size_t s, i; | |
| UINT8 buf[16]; | |
| UINT8 c; | |
| if (madr < 0x80) { | |
| size = madr + 0x80; | |
| addr = 0; | |
| } else { | |
| size = 0x100; | |
| addr = madr - 0x80; | |
| } | |
| VERBOSE(("memory dump\n--")); | |
| for (s = 0; s < size; s++) { | |
| if ((s % 16) == 0) { | |
| VERBOSE(("%08x: ", addr + s)); | |
| memset(buf, '.', sizeof(buf)); | |
| } | |
| c = cpu_vmemoryread(idx, addr + s); | |
| VERBOSE(("%02x ", c)); | |
| if (c >= 0x20 && c <= 0x7e) | |
| buf[s % 16] = c; | |
| if ((s % 16) == 15) { | |
| VERBOSE(("| ")); | |
| for (i = 0; i < sizeof(buf); i++) | |
| VERBOSE(("%c", buf[i])); | |
| VERBOSE(("\n")); | |
| } | |
| } | |
| } | } |
| static char *mem2str(DWORD cs, DWORD ip) | void |
| gdtr_dump(UINT32 base, UINT limit) | |
| { | { |
| static char buf[128]; | UINT32 v[2]; |
| char tmp[16]; | UINT i; |
| int i; | |
| strcpy(buf, "mem=... "); | VERBOSE(("GDTR_DUMP: GDTR_BASE = 0x%08x, GDTR_LIMIT = 0x%04x", base, limit)); |
| for(i = -10; i < 0; i++) | |
| { | |
| sprintf(tmp, "%02x ", __i286_memoryread((cs << 4) + ip + i)); | |
| strcat(buf, tmp); | |
| } | |
| sprintf(tmp, "<%02x> ", __i286_memoryread((cs << 4) + ip)); | |
| strcat(buf, tmp); | |
| for(i = 1; i <= 10; i++) | |
| { | |
| sprintf(tmp, "%02x ", __i286_memoryread((cs << 4) + ip + i)); | |
| strcat(buf, tmp); | |
| } | |
| strcat(buf, "...\n"); | |
| return buf; | for (i = 0; i < limit; i += 8) { |
| v[0] = cpu_kmemoryread_d(base + i); | |
| v[1] = cpu_kmemoryread_d(base + i + 4); | |
| VERBOSE(("GDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1])); | |
| } | |
| } | } |
| void FASTCALL msgbox_str(char *msg) | void |
| ldtr_dump(UINT32 base, UINT limit) | |
| { | { |
| UINT32 v[2]; | |
| UINT i; | |
| printf(msg); | VERBOSE(("LDTR_DUMP: LDTR_BASE = 0x%08x, LDTR_LIMIT = 0x%04x", base, limit)); |
| fflush(stdout); | |
| exit(1); | for (i = 0; i < limit; i += 8) { |
| v[0] = cpu_kmemoryread_d(base + i); | |
| v[1] = cpu_kmemoryread_d(base + i + 4); | |
| VERBOSE(("LDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1])); | |
| } | |
| } | } |
| void FASTCALL msgbox_mem(DWORD no) | void |
| idtr_dump(UINT32 base, UINT limit) | |
| { | { |
| char buf[2048]; | UINT32 v[2]; |
| char tmp[16]; | UINT i; |
| strcpy(buf, cpu_reg2str()); | VERBOSE(("IDTR_DUMP: IDTR_BASE = 0x%08x, IDTR_LIMIT = 0x%04x", base, limit)); |
| strcat(buf, "\n"); | |
| #ifdef USE_FPU | |
| strcat(buf, fpu_reg2str()); | |
| strcat(buf, "\n"); | |
| #endif | |
| strcat(buf, mem2str(I286_CS, I286_IP)); | |
| strcat(buf, "\n"); | |
| sprintf(tmp, "no=%08x\n", no); | |
| strcat(buf, tmp); | |
| msgbox_str(buf); | for (i = 0; i < limit; i += 8) { |
| v[0] = cpu_kmemoryread_d(base + i); | |
| v[1] = cpu_kmemoryread_d(base + i + 4); | |
| VERBOSE(("IDTR_DUMP: %08x: %08x%08x", base + i, v[0], v[1])); | |
| } | |
| } | } |
| void put_cpuinfo(void) | void |
| tr_dump(UINT16 selector, UINT32 base, UINT limit) | |
| { | { |
| char buf[2048]; | UINT32 v; |
| UINT i; | |
| strcpy(buf, cpu_reg2str()); | VERBOSE(("TR_DUMP: selector = %04x", selector)); |
| strcat(buf, "\n"); | |
| #ifdef USE_FPU | for (i = 0; i < limit; i += 4) { |
| strcat(buf, fpu_reg2str()); | v = cpu_kmemoryread_d(base + i); |
| strcat(buf, "\n"); | VERBOSE(("TR_DUMP: %08x: %08x", base + i, v)); |
| } | |
| } | |
| UINT32 | |
| pde_dump(UINT32 base, int idx) | |
| { | |
| UINT32 paddr; | |
| UINT32 v; | |
| int i; | |
| if (idx < 0 && idx > -8192) { | |
| idx = -idx; | |
| VERBOSE(("PDE_DUMP: address = 0x%08x, num = %d", base, idx)); | |
| for (i = 0; i < idx; i++) { | |
| paddr = (base & CPU_CR3_PD_MASK) | (idx << 2); | |
| v = cpu_memoryread_d(paddr); | |
| VERBOSE(("PDE_DUMP: 0x%08x: %08x", paddr, v)); | |
| } | |
| paddr = 0; | |
| } else if (idx < 8192) { | |
| VERBOSE(("PDE_DUMP: address = 0x%08x", base)); | |
| paddr = (base & CPU_CR3_PD_MASK) | (idx << 2); | |
| v = cpu_memoryread_d(paddr); | |
| VERBOSE(("PDE_DUMP: 0x%08x: %08x", paddr, v)); | |
| } else { | |
| VERBOSE(("PDE_DUMP: invalid idx (%d)", idx)); | |
| paddr = 0; | |
| } | |
| return paddr; | |
| } | |
| void | |
| segdesc_dump(descriptor_t *sdp) | |
| { | |
| #if defined(DEBUG) | |
| const char *s; | |
| __ASSERT(sdp != NULL); | |
| VERBOSE(("\ndump descriptor: %p", sdp)); | |
| VERBOSE(("valid : %s", SEG_IS_VALID(sdp) ? "true" : "false")); | |
| VERBOSE(("present : %s", SEG_IS_PRESENT(sdp) ? "true" : "false")); | |
| VERBOSE(("DPL : %d", sdp->dpl)); | |
| VERBOSE(("kind : %s", SEG_IS_SYSTEM(sdp) ? "system" : "code/data")); | |
| if (!SEG_IS_SYSTEM(sdp)) { | |
| if (SEG_IS_CODE(sdp)) { | |
| VERBOSE(("type : %sconforming code", | |
| SEG_IS_CONFORMING_CODE(sdp) ? "" : "non-")); | |
| VERBOSE(("access : execute%s", | |
| SEG_IS_READABLE_CODE(sdp) ? "/read" : "")); | |
| } else { | |
| VERBOSE(("type : expand-%s data", | |
| SEG_IS_EXPANDDOWN_DATA(sdp) ? "down" : "up")); | |
| VERBOSE(("access : read%s", | |
| SEG_IS_WRITABLE_DATA(sdp) ? "/write" : "")); | |
| } | |
| VERBOSE(("4k scale : %s", sdp->u.seg.g ? "true" : "false")); | |
| VERBOSE(("baseadr : 0x%08x", sdp->u.seg.segbase)); | |
| VERBOSE(("limit : 0x%08x", sdp->u.seg.limit)); | |
| } else { | |
| switch (sdp->type) { | |
| case CPU_SYSDESC_TYPE_LDT: /* LDT */ | |
| VERBOSE(("type : LDT")); | |
| VERBOSE(("4k scale : %s", sdp->u.seg.g ? "true" : "false")); | |
| VERBOSE(("baseadr : 0x%08x", sdp->u.seg.segbase)); | |
| VERBOSE(("limit : 0x%08x", sdp->u.seg.limit)); | |
| break; | |
| case CPU_SYSDESC_TYPE_TASK: /* task gate */ | |
| VERBOSE(("type : task gate")); | |
| VERBOSE(("selector : 0x%04x", sdp->u.gate.selector)); | |
| break; | |
| case CPU_SYSDESC_TYPE_TSS_16: /* 286 TSS */ | |
| case CPU_SYSDESC_TYPE_TSS_BUSY_16: /* 286 Busy TSS */ | |
| case CPU_SYSDESC_TYPE_TSS_32: /* 386 TSS */ | |
| case CPU_SYSDESC_TYPE_TSS_BUSY_32: /* 386 Busy TSS */ | |
| VERBOSE(("type : %dbit %sTSS", | |
| (sdp->type & CPU_SYSDESC_TYPE_32BIT) ? 32 : 16, | |
| (sdp->type & CPU_SYSDESC_TYPE_TSS_BUSY_IND) ? | |
| "Busy " : "")); | |
| VERBOSE(("4k scale : %s", sdp->u.seg.g ? "true" : "false")); | |
| VERBOSE(("baseadr : 0x%08x", sdp->u.seg.segbase)); | |
| VERBOSE(("limit : 0x%08x", sdp->u.seg.limit)); | |
| break; | |
| case CPU_SYSDESC_TYPE_CALL_16: /* 286 call gate */ | |
| case CPU_SYSDESC_TYPE_INTR_16: /* 286 interrupt gate */ | |
| case CPU_SYSDESC_TYPE_TRAP_16: /* 286 trap gate */ | |
| case CPU_SYSDESC_TYPE_CALL_32: /* 386 call gate */ | |
| case CPU_SYSDESC_TYPE_INTR_32: /* 386 interrupt gate */ | |
| case CPU_SYSDESC_TYPE_TRAP_32: /* 386 trap gate */ | |
| switch (sdp->type & CPU_SYSDESC_TYPE_MASKBIT) { | |
| case CPU_SYSDESC_TYPE_CALL: | |
| s = "call"; | |
| break; | |
| case CPU_SYSDESC_TYPE_INTR: | |
| s = "interrupt"; | |
| break; | |
| case CPU_SYSDESC_TYPE_TRAP: | |
| s = "trap"; | |
| break; | |
| default: | |
| s = "unknown"; | |
| break; | |
| } | |
| VERBOSE(("type : %c86 %s gate", | |
| (sdp->type & CPU_SYSDESC_TYPE_32BIT) ? '3':'2', s)); | |
| VERBOSE(("selector : 0x%04x", sdp->u.gate.selector)); | |
| VERBOSE(("offset : 0x%08x", sdp->u.gate.offset)); | |
| VERBOSE(("count : %d", sdp->u.gate.count)); | |
| break; | |
| case 0: case 8: case 10: case 13: /* reserved */ | |
| default: | |
| VERBOSE(("type : unknown descriptor")); | |
| break; | |
| } | |
| } | |
| #endif | #endif |
| strcat(buf, a20str()); | } |
| UINT32 | |
| convert_laddr_to_paddr(UINT32 laddr) | |
| { | |
| UINT32 paddr; /* physical address */ | |
| UINT32 pde_addr; /* page directory entry address */ | |
| UINT32 pde; /* page directory entry */ | |
| UINT32 pte_addr; /* page table entry address */ | |
| UINT32 pte; /* page table entry */ | |
| pde_addr = (CPU_CR3 & CPU_CR3_PD_MASK) | ((laddr >> 20) & 0xffc); | |
| pde = cpu_memoryread_d(pde_addr); | |
| if ((CPU_CR4 & CPU_CR4_PSE) && (pde & CPU_PDE_PAGE_SIZE)) { | |
| /* 4MB page size */ | |
| paddr = (pde & CPU_PDE_4M_BASEADDR_MASK) | (laddr & 0x003fffff); | |
| } else { | |
| /* 4KB page size */ | |
| pte_addr = (pde & CPU_PDE_BASEADDR_MASK) | ((laddr >> 10) & 0xffc); | |
| pte = cpu_memoryread_d(pte_addr); | |
| paddr = (pte & CPU_PTE_BASEADDR_MASK) | (laddr & 0x00000fff); | |
| } | |
| return paddr; | |
| } | |
| UINT32 | |
| convert_vaddr_to_paddr(unsigned int idx, UINT32 offset) | |
| { | |
| descriptor_t *sdp; | |
| UINT32 laddr; | |
| printf(buf); | if (idx < CPU_SEGREG_NUM) { |
| sdp = &CPU_STAT_SREG(idx); | |
| if (SEG_IS_VALID(sdp)) { | |
| laddr = CPU_STAT_SREGBASE(idx) + offset; | |
| return convert_laddr_to_paddr(laddr); | |
| } | |
| } | |
| return 0; | |
| } | } |