Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
x86/realmode.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/x86/realmode.c b/x86/realmode.c
index a2cc8a9..29f3461 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -1344,6 +1344,18 @@ static void test_lahf(void)
report("lahf", R_AX, (outregs.eax >> 8) == inregs.eax);
}
+static void test_movzx_movsx(void)
+{
+ MK_INSN(movsx, "movsx %al, %ebx");
+ MK_INSN(movzx, "movzx %al, %ebx");
+
+ inregs.eax = 0x1234569c;
+ exec_in_big_real_mode(&insn_movsx);
+ report("movsx", R_BX, outregs.ebx == (signed char)inregs.eax);
+ exec_in_big_real_mode(&insn_movzx);
+ report("movzx", R_BX, outregs.ebx == (unsigned char)inregs.eax);
+}
+
void realmode_start(void)
{
test_null();
@@ -1381,6 +1393,7 @@ void realmode_start(void)
test_ss_base_for_esp_ebp();
test_sgdt_sidt();
test_lahf();
+ test_movzx_movsx();
exit(0);
}
--
1.7.11
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