From: Mohammed Gamal <[email protected]>
Signed-off-by: Mohammed Gamal <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
diff --git a/x86/realmode.c b/x86/realmode.c
index 14ea70f..3d8aed4 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -1060,6 +1060,50 @@ void test_imul()
print_serial("imul Test 6: PASS\n");
}
+void test_mul()
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(mul8, "mov $2, %al\n\t"
+ "mov $4, %cx\n\t"
+ "imul %cl\n\t");
+
+ MK_INSN(mul16, "mov $2, %ax\n\t"
+ "mov $4, %cx\n\t"
+ "imul %cx\n\t");
+
+ MK_INSN(mul32, "mov $2, %eax\n\t"
+ "mov $4, %ecx\n\t"
+ "imul %ecx\n\t");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_mul8,
+ insn_mul8_end - insn_mul8);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || (outregs.eax
& 0xff) != 8)
+ print_serial("mul Test 1: FAIL\n");
+ else
+ print_serial("mul Test 1: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_mul16,
+ insn_mul16_end - insn_mul16);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= 8)
+ print_serial("mul Test 2: FAIL\n");
+ else
+ print_serial("mul Test 2: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_mul32,
+ insn_mul32_end - insn_mul32);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= 8)
+ print_serial("mul Test 3: FAIL\n");
+ else
+ print_serial("mul Test 3: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -1084,6 +1128,7 @@ void realmode_start(void)
test_iret();
test_int();
test_imul();
+ test_mul();
exit(0);
}
--
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