Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
---
x86/realmode.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/x86/realmode.c b/x86/realmode.c
index 35f6a16..bedd175 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -1194,6 +1194,48 @@ void test_idiv()
print_serial("idiv Test 3: PASS\n");
}
+void test_loopcc(void)
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(loop, "mov $10, %ecx\n\t"
+ "1: inc %eax\n\t"
+ "loop 1b\n\t");
+
+ MK_INSN(loope, "mov $10, %ecx\n\t"
+ "mov $1, %eax\n\t"
+ "1: dec %eax\n\t"
+ "loope 1b\n\t");
+
+ MK_INSN(loopne, "mov $10, %ecx\n\t"
+ "mov $5, %eax\n\t"
+ "1: dec %eax\n\t"
+ "loopne 1b\n\t");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_loop, insn_loop_end - insn_loop);
+ if(!regs_equal(&inregs, &outregs, R_AX) || outregs.eax != 10)
+ print_serial("LOOPcc short Test 1: FAIL\n");
+ else
+ print_serial("LOOPcc short Test 1: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_loope, insn_loope_end - insn_loope);
+ if(!regs_equal(&inregs, &outregs, R_AX | R_CX) ||
+ outregs.eax != -1 || outregs.ecx != 8)
+ print_serial("LOOPcc short Test 2: FAIL\n");
+ else
+ print_serial("LOOPcc short Test 2: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_loopne, insn_loopne_end - insn_loopne);
+ if(!regs_equal(&inregs, &outregs, R_AX | R_CX) ||
+ outregs.eax != 0 || outregs.ecx != 5)
+ print_serial("LOOPcc short Test 3: FAIL\n");
+ else
+ print_serial("LOOPcc short Test 3: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -1221,6 +1263,7 @@ void realmode_start(void)
test_mul();
test_div();
test_idiv();
+ test_loopcc();
exit(0);
}
--
1.7.0.4
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