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x86: fix #968. also fix potential bug of not clearing high bytes when updateing EIP

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This commit is contained in:
Nguyen Anh Quynh
2018-07-26 15:19:23 +08:00
parent 58e1f03f12
commit 4d0157eb4a
2 changed files with 11 additions and 4 deletions
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4
qemu/target-i386/unicorn.c
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@@ -971,7 +971,7 @@ int x86_reg_write(struct uc_struct *uc, unsigned int *regs, void *const *vals, i
uc_emu_stop(uc);
break;
case UC_X86_REG_IP:
WRITE_WORD(X86_CPU(uc, mycpu)->env.eip, *(uint16_t *)value);
X86_CPU(uc, mycpu)->env.eip = *(uint16_t *)value;
// force to quit execution and flush TB
uc->quit_request = true;
uc_emu_stop(uc);
@@ -1161,7 +1161,7 @@ int x86_reg_write(struct uc_struct *uc, unsigned int *regs, void *const *vals, i
uc_emu_stop(uc);
break;
case UC_X86_REG_EIP:
WRITE_DWORD(X86_CPU(uc, mycpu)->env.eip, *(uint32_t *)value);
X86_CPU(uc, mycpu)->env.eip = *(uint32_t *)value;
// force to quit execution and flush TB
uc->quit_request = true;
uc_emu_stop(uc);