On Wed, Sep 04, 2013 at 03:12:17PM -0600, Bruce Rogers wrote:
> Signed-off-by: Bruce Rogers <brogers@xxxxxxxx>
Reviewed-by: Gleb Natapov <gleb@xxxxxxxxxx>
> ---
> x86/realmode.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/x86/realmode.c b/x86/realmode.c
> index 3546771..c57e033 100644
> --- a/x86/realmode.c
> +++ b/x86/realmode.c
> @@ -481,6 +481,9 @@ void test_io(void)
> asm ("retf: lretw");
> extern void retf();
>
> +asm ("retf_imm: lretw $10");
> +extern void retf_imm();
> +
> void test_call(void)
> {
> u32 esp[16];
> @@ -503,6 +506,7 @@ void test_call(void)
> MK_INSN(call_far1, "lcallw *(%ebx)\n\t");
> MK_INSN(call_far2, "lcallw $0, $retf\n\t");
> MK_INSN(ret_imm, "sub $10, %sp; jmp 2f; 1: retw $10; 2: callw 1b");
> + MK_INSN(retf_imm, "sub $10, %sp; lcallw $0, $retf_imm");
>
> exec_in_big_real_mode(&insn_call1);
> report("call 1", R_AX, outregs.eax == 0x1234);
> @@ -523,6 +527,9 @@ void test_call(void)
>
> exec_in_big_real_mode(&insn_ret_imm);
> report("ret imm 1", 0, 1);
> +
> + exec_in_big_real_mode(&insn_retf_imm);
> + report("retf imm 1", 0, 1);
> }
>
> void test_jcc_short(void)
> --
> 1.7.7
--
Gleb.
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