Add IMUL tests
IMUL REG, R/M
IMUL REG, R/M, IMM8
IMUL REG, R/M, IMM
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/x86/emulator.c b/x86/emulator.c
index d30ca8e..b0d15c0 100644
--- a/x86/emulator.c
+++ b/x86/emulator.c
@@ -535,6 +535,47 @@
report("bsrq r/m, reg", rax == 1);
}
+static void test_imul(ulong *mem)
+{
+ ulong a;
+
+ *mem = 51; a = 0x1234567812345678UL;
+ asm ("imulw %1, %%ax" : "+a"(a) : "m"(*mem));
+ report("imul ax, mem", a == 0x12345678123439e8);
+
+ *mem = 51; a = 0x1234567812345678UL;
+ asm ("imull %1, %%eax" : "+a"(a) : "m"(*mem));
+ report("imul eax, mem", a == 0xa06d39e8);
+
+ *mem = 51; a = 0x1234567812345678UL;
+ asm ("imulq %1, %%rax" : "+a"(a) : "m"(*mem));
+ report("imul rax, mem", a == 0xA06D39EBA06D39E8UL);
+
+ *mem = 0x1234567812345678UL; a = 0x8765432187654321L;
+ asm ("imulw $51, %1, %%ax" : "+a"(a) : "m"(*mem));
+ report("imul ax, mem, imm8", a == 0x87654321876539e8);
+
+ *mem = 0x1234567812345678UL;
+ asm ("imull $51, %1, %%eax" : "+a"(a) : "m"(*mem));
+ report("imul eax, mem, imm8", a == 0xa06d39e8);
+
+ *mem = 0x1234567812345678UL;
+ asm ("imulq $51, %1, %%rax" : "+a"(a) : "m"(*mem));
+ report("imul rax, mem, imm8", a == 0xA06D39EBA06D39E8UL);
+
+ *mem = 0x1234567812345678UL; a = 0x8765432187654321L;
+ asm ("imulw $311, %1, %%ax" : "+a"(a) : "m"(*mem));
+ report("imul ax, mem, imm", a == 0x8765432187650bc8);
+
+ *mem = 0x1234567812345678UL;
+ asm ("imull $311, %1, %%eax" : "+a"(a) : "m"(*mem));
+ report("imul eax, mem, imm", a == 0x1d950bc8);
+
+ *mem = 0x1234567812345678UL;
+ asm ("imulq $311, %1, %%rax" : "+a"(a) : "m"(*mem));
+ report("imul rax, mem, imm", a == 0x1D950BDE1D950BC8L);
+}
+
int main()
{
void *mem;
@@ -570,6 +611,7 @@
test_incdecnotneg(mem);
test_btc(mem);
test_bsfbsr(mem);
+ test_imul(mem);
printf("\nSUMMARY: %d tests, %d failures\n", tests, fails);
return fails ? 1 : 0;
