eden-emu/xbyak
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change error range of imm

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This commit is contained in:
MITSUNARI Shigeo 2015-08-17 06:35:56 +09:00
parent 7a1ea1ed48
commit 762f40ffc3
2 changed files with 11 additions and 9 deletions
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13
test/misc.cpp
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@ -38,13 +38,12 @@ CYBOZU_TEST_AUTO(mov_const)
struct Code : Xbyak::CodeGenerator {
Code()
{
CYBOZU_TEST_NO_EXCEPTION(mov(dword[eax], -1));
CYBOZU_TEST_NO_EXCEPTION(mov(dword[eax], 0x7fffffff));
CYBOZU_TEST_NO_EXCEPTION(mov(dword[eax], -0x7fffffff));
CYBOZU_TEST_NO_EXCEPTION(mov(dword[eax], 0xabcd1234));
CYBOZU_TEST_NO_EXCEPTION(mov(dword[eax], 0xffffffff));
CYBOZU_TEST_EXCEPTION(mov(dword[eax], 0x100000000ull), Xbyak::Error);
CYBOZU_TEST_EXCEPTION(mov(dword[eax], -0x80000000ull), Xbyak::Error);
CYBOZU_TEST_NO_EXCEPTION(mov(qword[eax], 0x12345678));
CYBOZU_TEST_NO_EXCEPTION(mov(qword[eax], 0x7fffffff));
CYBOZU_TEST_NO_EXCEPTION(mov(qword[eax], -1));
CYBOZU_TEST_NO_EXCEPTION(mov(qword[eax], 0xffffffffffffffffull));
CYBOZU_TEST_EXCEPTION(mov(qword[eax], 0x80000000), Xbyak::Error);
CYBOZU_TEST_EXCEPTION(mov(qword[eax], 0xffffffff), Xbyak::Error);
}
} code;
}

7
xbyak/xbyak.h
View file

@ -1865,8 +1865,11 @@ public:
db(imm, size);
} else if (op.isMEM()) {
opModM(static_cast<const Address&>(op), Reg(0, Operand::REG, op.getBit()), B11000110);
int size = op.getBit() / 8; if (size > 4) size = 4;
if (0xffffffff < imm && imm <= ~uint64(0x7fffffffu)) throw Error(ERR_IMM_IS_TOO_BIG);
int size = op.getBit() / 8;
if (size == 8) {
if (!inner::IsInInt32(imm)) throw Error(ERR_IMM_IS_TOO_BIG);
size = 4;
}
db(static_cast<uint32>(imm), size);
} else {
throw Error(ERR_BAD_COMBINATION);