static int cmd_info_r() {
int i;
for (i = 0; i < 8; i++) {
printf("%s\t%#10x\t%10d\t", regsl[i], reg_l(i), reg_l(i));
printf("%s\t%#6x\t%5d", regsw[i], reg_w(i), reg_w(i));
if (i < 4) {
printf("\t%s\t%#4x\t%3d\t", regsb[i|4], reg_b(i|4), reg_b(i|4));
printf("%s\t%#4x\t%3d\n", regsb[i], reg_b(i), reg_b(i));
} else printf("\n");
}
for (i = 0; i < 6; i++) {
printf("%s\t%#6x: base = %#10x, limit = %#10x\n", regss[i], cpu.sr[i].sel, cpu.sr[i].base, cpu.sr[i].limit);
}
printf("eflags\t%#10x [%s%s%s%s%s%s%s ]\n", cpu.eflags,
cpu.cf ? "CF" : "",
cpu.pf ? "PF" : "",
cpu.zf ? "ZF" : "",
cpu.sf ? "SF" : "",
cpu.ief? "IF" : "",
cpu.df ? "DF" : "",
cpu.of ? "OF" : ""
);
printf("eip\t%#10x\n", cpu.eip);
printf("cr0\t%#10x\tcr3\t%#10x\n", cpu.cr0.value, cpu.cr3);
printf("gdtr:\tbase = %#10x, limit = %#10x\nidtr:\tbase = %#10x, limit = %#10x\n", cpu.gdtr.base, cpu.gdtr.limit, cpu.idtr.base, cpu.idtr.limit);
return 0;
}
/*
* @describe get the value of the reg
* @param {string} reg
* @return {uint32_t}
*/
uint32_t getreg(char* reg) {
uint32_t res;
if(!strcmp(reg, "$eax")) res = cpu.eax;
else if(!strcmp(reg, "$ecx")) res = cpu.ecx;
else if(!strcmp(reg, "$edx")) res = cpu.edx;
else if(!strcmp(reg, "$ebx")) res = cpu.ebx;
else if(!strcmp(reg, "$esp")) res = cpu.esp;
else if(!strcmp(reg, "$ebp")) res = cpu.ebp;
else if(!strcmp(reg, "$esi")) res = cpu.esi;
else if(!strcmp(reg, "$edi")) res = cpu.edi;
else if(!strcmp(reg, "$eip")) res = cpu.eip;
else if(!strcmp(reg, "$ax")) res = reg_w(0);
else if(!strcmp(reg, "$cx")) res = reg_w(1);
else if(!strcmp(reg, "$dx")) res = reg_w(2);
else if(!strcmp(reg, "$bx")) res = reg_w(3);
else if(!strcmp(reg, "$sp")) res = reg_w(4);
else if(!strcmp(reg, "$bp")) res = reg_w(5);
else if(!strcmp(reg, "$si")) res = reg_w(6);
else if(!strcmp(reg, "$di")) res = reg_w(7);
else if(!strcmp(reg, "$al")) res = reg_b(0);
else if(!strcmp(reg, "$cl")) res = reg_b(1);
else if(!strcmp(reg, "$dl")) res = reg_b(2);
else if(!strcmp(reg, "$bl")) res = reg_b(3);
else if(!strcmp(reg, "$ah")) res = reg_b(4);
else if(!strcmp(reg, "$ch")) res = reg_b(5);
else if(!strcmp(reg, "$dh")) res = reg_b(6);
else if(!strcmp(reg, "$bh")) res = reg_b(7);
else assert(0);
return res;
}
static int cmd_info(char *args) {
int i;
if(strcmp(args, "r") == 0) {
for(i=0;i<8;i++){
printf("%s-%08x\n", regsl[i], reg_l(i));
}
for(i=0;i<8;i++){
printf("%s-%04x\n", regsw[i], reg_w(i));
}
for(i=0;i<8;i++){
printf("%s-%02x\n", regsb[i], reg_b(i));
}
printf("eip-%x\n", cpu.eip);
}
else if( strcmp(args, "w") == 0 ){
WP* temp = head;
while(temp != NULL){
printf("%d, %s, %d\n", temp->NO, temp->addr, temp->old_value);
temp = temp->next;
}
}
else
printf("Something's wrong:-(\n");
return 0;
}
int read_ModR_M(swaddr_t eip, Operand *rm, Operand *reg) {
ModR_M m;
m.val = instr_fetch(eip, 1);
// Log("m.val = %02x", m.val);
reg->type = OP_TYPE_REG;
reg->reg = m.reg;
if(m.mod == 3) {
rm->type = OP_TYPE_REG;
rm->reg = m.R_M;
switch(rm->size) {
case 1: rm->val = reg_b(m.R_M); break;
case 2: rm->val = reg_w(m.R_M); break;
case 4: rm->val = reg_l(m.R_M); break;
default: assert(0);
}
#ifdef DEBUG
switch(rm->size) {
case 1: sprintf(rm->str, "%%%s", regsb[m.R_M]); break;
case 2: sprintf(rm->str, "%%%s", regsw[m.R_M]); break;
case 4: sprintf(rm->str, "%%%s", regsl[m.R_M]); break;
}
#endif
return 1;
}
else {
int instr_len = load_addr(eip, &m, rm);
rm->val = swaddr_read(rm->addr, rm->size, R_DS); //TODO DS or SS
return instr_len;
}
}
static int cmd_info(char *args) {
char command;
if(args == NULL){
printf("please input arguments\n");
return 0;
}
if(sscanf(args,"%c",&command) != 1){
printf("wrong argument\n");
return 0;
}
if(command == 'r'){
//print the rigisters
int i = 0;
for(i = 0;i < 8; ++i){
printf("%s\t0x%x\t\t%u\n",regsl[i],reg_l(i),reg_l(i));
}
for(i = 0;i < 8; ++i){
printf("%s\t0x%x\t\t%u\n",regsw[i],reg_w(i),reg_w(i));
}
for(i = 0;i < 8; ++i){
printf("%s\t0x%x\t\t%u\n",regsb[i],reg_b(i),reg_b(i));
}
printf("eip\t0x%x\t%d\n",cpu.eip,cpu.eip);
printf("eflags\t0x%8x\t%d\n",cpu.eflags, cpu.eflags);
printf("CF\t%x\n",cpu.CF);
printf("PF\t%x\n",cpu.PF);
printf("ZF\t%x\n",cpu.ZF);
printf("SF\t%x\n",cpu.SF);
printf("IF\t%x\n",cpu.IF);
printf("DF\t%x\n",cpu.DF);
printf("OF\t%x\n",cpu.OF);
}else if(command == 'w'){
//打印监视点信息
print_wp();
}else{
printf("Unknown command: info %c\n",command);
}
return 0;
}