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 3bbd630..14ea70f 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -733,6 +733,7 @@ void test_long_jmp()
else
print_serial("Long JMP Test: PASS\n");
}
+
void test_push_pop()
{
struct regs inregs = { 0 }, outregs;
@@ -975,6 +976,90 @@ void test_int()
print_serial("int Test 1: PASS\n");
}
+void test_imul()
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(imul8_1, "mov $2, %al\n\t"
+ "mov $-4, %cx\n\t"
+ "imul %cl\n\t");
+
+ MK_INSN(imul16_1, "mov $2, %ax\n\t"
+ "mov $-4, %cx\n\t"
+ "imul %cx\n\t");
+
+ MK_INSN(imul32_1, "mov $2, %eax\n\t"
+ "mov $-4, %ecx\n\t"
+ "imul %ecx\n\t");
+
+ MK_INSN(imul8_2, "mov $0x12340002, %eax\n\t"
+ "mov $4, %cx\n\t"
+ "imul %cl\n\t");
+
+ MK_INSN(imul16_2, "mov $2, %ax\n\t"
+ "mov $4, %cx\n\t"
+ "imul %cx\n\t");
+
+ MK_INSN(imul32_2, "mov $2, %eax\n\t"
+ "mov $4, %ecx\n\t"
+ "imul %ecx\n\t");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul8_1,
+ insn_imul8_1_end - insn_imul8_1);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || (outregs.eax
& 0xff) != (u8)-8)
+ print_serial("imul Test 1: FAIL\n");
+ else
+ print_serial("imul Test 1: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul16_1,
+ insn_imul16_1_end - insn_imul16_1);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= (u16)-8)
+ print_serial("imul Test 2: FAIL\n");
+ else
+ print_serial("imul Test 2: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul32_1,
+ insn_imul32_1_end - insn_imul32_1);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= (u32)-8)
+ print_serial("imul Test 3: FAIL\n");
+ else
+ print_serial("imul Test 3: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul8_2,
+ insn_imul8_2_end - insn_imul8_2);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || (outregs.eax
& 0xffff) != 8 ||
+ (outregs.eax & 0xffff0000) != 0x12340000)
+ print_serial("imul Test 4: FAIL\n");
+ else
+ print_serial("imul Test 4: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul16_2,
+ insn_imul16_2_end - insn_imul16_2);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= 8)
+ print_serial("imul Test 5: FAIL\n");
+ else
+ print_serial("imul Test 5: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_imul32_2,
+ insn_imul32_2_end - insn_imul32_2);
+
+ if (!regs_equal(&inregs, &outregs, R_AX | R_CX | R_DX) || outregs.eax
!= 8)
+ print_serial("imul Test 6: FAIL\n");
+ else
+ print_serial("imul Test 6: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -998,6 +1083,7 @@ void realmode_start(void)
test_xchg();
test_iret();
test_int();
+ test_imul();
exit(0);
}
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