--- np2/i386c/ia32/cpu.c 2004/03/30 08:48:46 1.18 +++ np2/i386c/ia32/cpu.c 2005/03/03 06:59:41 1.23 @@ -1,4 +1,4 @@ -/* $Id: cpu.c,v 1.18 2004/03/30 08:48:46 yui Exp $ */ +/* $Id: cpu.c,v 1.23 2005/03/03 06:59:41 yui Exp $ */ /* * Copyright (c) 2002-2003 NONAKA Kimihiro @@ -34,6 +34,10 @@ #include "inst_table.h" +#if defined(ENABLE_TRAP) +#include "steptrap.h" +#endif + sigjmp_buf exec_1step_jmpbuf; @@ -55,41 +59,6 @@ int cpu_inst_trace = 0; #endif -// #define IPTRACE (1 << 14) - -#if defined(TRACE) && IPTRACE -static UINT trpos = 0; -static UINT32 trcs[IPTRACE]; -static UINT32 treip[IPTRACE]; - -void iptrace_out(void) { - - FILEH fh; - UINT s; - UINT32 cs; - UINT32 eip; - char buf[32]; - - s = trpos; - if (s > IPTRACE) { - s -= IPTRACE; - } - else { - s = 0; - } - fh = file_create_c("his.txt"); - while(s < trpos) { - cs = trcs[s & (IPTRACE - 1)]; - eip = treip[s & (IPTRACE - 1)]; - s++; - SPRINTF(buf, "%.4x:%.8x\r\n", cs, eip); - file_write(fh, buf, strlen(buf)); - } - file_close(fh); -} -#endif - - void exec_1step(void) { @@ -99,10 +68,8 @@ exec_1step(void) CPU_PREV_EIP = CPU_EIP; CPU_STATSAVE.cpu_inst = CPU_STATSAVE.cpu_inst_default; -#if defined(TRACE) && IPTRACE - trcs[trpos & (IPTRACE - 1)] = CPU_CS; - treip[trpos & (IPTRACE - 1)] = CPU_EIP; - trpos++; +#if defined(ENABLE_TRAP) + steptrap(CPU_CS, CPU_EIP); #endif #if defined(IA32_INSTRUCTION_TRACE) @@ -205,38 +172,74 @@ exec_1step(void) if (CPU_CX != 0) { if (!(insttable_info[op] & REP_CHECKZF)) { /* rep */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_CX); + if (--CPU_CX == 0) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } else if (CPU_INST_REPUSE != 0xf2) { /* repe */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_CX && (CPU_FLAGL & Z_FLAG)); + if (--CPU_CX == 0 || CC_NZ) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } else { /* repne */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_CX && !(CPU_FLAGL & Z_FLAG)); + if (--CPU_CX == 0 || CC_Z) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } } } else { if (CPU_ECX != 0) { if (!(insttable_info[op] & REP_CHECKZF)) { /* rep */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_ECX); + if (--CPU_ECX == 0) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } else if (CPU_INST_REPUSE != 0xf2) { /* repe */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_ECX && (CPU_FLAGL & Z_FLAG)); + if (--CPU_ECX == 0 || CC_NZ) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } else { /* repne */ - do { + for (;;) { (*insttable_1byte[CPU_INST_OP32][op])(); - } while (--CPU_ECX && !(CPU_FLAGL & Z_FLAG)); + if (--CPU_ECX == 0 || CC_Z) + break; + if (CPU_REMCLOCK <= 0) { + CPU_EIP = CPU_PREV_EIP; + break; + } + } } } }