Signed-off-by: Avi Kivity <avi.kivity@xxxxxxxxx> --- x86/emulator.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/x86/emulator.c b/x86/emulator.c index a128e13..96576e5 100644 --- a/x86/emulator.c +++ b/x86/emulator.c @@ -583,9 +583,9 @@ static void test_imul(ulong *mem) report("imul rax, mem, imm", a == 0x1D950BDE1D950BC8L); } -static void test_div(long *mem) +static void test_muldiv(long *mem) { - long a, d; + long a, d, aa, dd; u8 ex = 1; *mem = 0; a = 1; d = 2; @@ -598,6 +598,19 @@ static void test_div(long *mem) : "+a"(a), "+d"(d), "+q"(ex) : "m"(*mem)); report("divq (1)", a == 0x1ffffffb1b963b33ul && d == 0x273ba4384ede2ul && !ex); + aa = 0x1111111111111111; dd = 0x2222222222222222; + *mem = 0x3333333333333333; a = aa; d = dd; + asm("mulb %2" : "+a"(a), "+d"(d) : "m"(*mem)); + report("mulb mem", a == 0x1111111111110363 && d == dd); + *mem = 0x3333333333333333; a = aa; d = dd; + asm("mulw %2" : "+a"(a), "+d"(d) : "m"(*mem)); + report("mulw mem", a == 0x111111111111c963 && d == 0x2222222222220369); + *mem = 0x3333333333333333; a = aa; d = dd; + asm("mull %2" : "+a"(a), "+d"(d) : "m"(*mem)); + report("mull mem", a == 0x962fc963 && d == 0x369d036); + *mem = 0x3333333333333333; a = aa; d = dd; + asm("mulq %2" : "+a"(a), "+d"(d) : "m"(*mem)); + report("mulq mem", a == 0x2fc962fc962fc963 && d == 0x369d0369d0369d0); } typedef unsigned __attribute__((vector_size(16))) sse128; @@ -934,7 +947,7 @@ int main() test_btc(mem); test_bsfbsr(mem); test_imul(mem); - test_div(mem); + test_muldiv(mem); test_sse(mem); test_mmx(mem); test_rip_relative(mem, insn_ram); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html