[v2] Add realmode test for jcxz instruction

Commit Message

Wei Yongjun Aug. 20, 2010, 12:52 a.m. UTC

None

Patch

diff --git a/x86/realmode.c b/x86/realmode.c
index ce8fb18..75d77bd 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -1262,6 +1262,67 @@  void test_cbw(void)
 		print_serial("cwde test 1: PASS\n");
 }
 
+void test_jcxz(void)
+{
+	struct regs inregs = { 0 }, outregs;
+
+	MK_INSN(jcxz1, "jcxz 1f\n\t"
+		       "mov $0x1234, %eax\n\t"
+		       "1:\n\t");
+	MK_INSN(jcxz2, "mov $0x100, %ecx\n\t"
+		       "jcxz 1f\n\t"
+		       "mov $0x1234, %eax\n\t"
+		       "mov $0, %ecx\n\t"
+		       "1:\n\t");
+	MK_INSN(jcxz3, "mov $0x10000, %ecx\n\t"
+		       "jcxz 1f\n\t"
+		       "mov $0x1234, %eax\n\t"
+		       "1:\n\t");
+	MK_INSN(jecxz1, "jecxz 1f\n\t"
+			"mov $0x1234, %eax\n\t"
+			"1:\n\t");
+	MK_INSN(jecxz2, "mov $0x10000, %ecx\n\t"
+			"jecxz 1f\n\t"
+			"mov $0x1234, %eax\n\t"
+			"mov $0, %ecx\n\t"
+			"1:\n\t");
+
+	exec_in_big_real_mode(&inregs, &outregs,
+			insn_jcxz1, insn_jcxz1_end - insn_jcxz1);
+	if(!regs_equal(&inregs, &outregs, 0))
+		print_serial("JCXZ short Test 1: FAIL\n");
+	else
+		print_serial("JCXZ short Test 1: PASS\n");
+
+	exec_in_big_real_mode(&inregs, &outregs,
+			insn_jcxz2, insn_jcxz2_end - insn_jcxz2);
+	if(!regs_equal(&inregs, &outregs, R_AX) || outregs.eax != 0x1234)
+		print_serial("JCXZ short Test 2: FAIL\n");
+	else
+		print_serial("JCXZ short Test 2: PASS\n");
+
+	exec_in_big_real_mode(&inregs, &outregs,
+			insn_jcxz3, insn_jcxz3_end - insn_jcxz3);
+	if(!regs_equal(&inregs, &outregs, R_CX) || outregs.ecx != 0x10000)
+		print_serial("JCXZ short Test 3: FAIL\n");
+	else
+		print_serial("JCXZ short Test 3: PASS\n");
+
+	exec_in_big_real_mode(&inregs, &outregs,
+			insn_jecxz1, insn_jecxz1_end - insn_jecxz1);
+	if(!regs_equal(&inregs, &outregs, 0))
+		print_serial("JECXZ short Test 1: FAIL\n");
+	else
+		print_serial("JECXZ short Test 1: PASS\n");
+
+	exec_in_big_real_mode(&inregs, &outregs,
+			insn_jecxz2, insn_jecxz2_end - insn_jecxz2);
+	if(!regs_equal(&inregs, &outregs, R_AX) || outregs.eax != 0x1234)
+		print_serial("JECXZ short Test 2: FAIL\n");
+	else
+		print_serial("JECXZ short Test 2: PASS\n");
+}
+
 void realmode_start(void)
 {
 	test_null();
@@ -1291,6 +1352,7 @@  void realmode_start(void)
 	test_idiv();
 	test_loopcc();
 	test_cbw();
+	test_jcxz();
 
 	exit(0);
 }