Test multiple byte nopl (from 1-byte nopl to 9-byte nopl) in
64-bit mode.
Signed-off-by: Arthur Chunqi Li <[email protected]>
---
x86/emulator.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/x86/emulator.c b/x86/emulator.c
index 6972334..bd02d5c 100755
--- a/x86/emulator.c
+++ b/x86/emulator.c
@@ -816,6 +816,30 @@ static void test_movabs(uint64_t *mem, uint8_t
*alt_insn_page)
report("64-bit mov imm2", outregs.rcx == 0x9090909090909090);
}
+static void test_nopl(uint64_t *mem, void *alt_insn_page)
+{
+ MK_INSN(nopl1, ".byte 0x90\n\r"); /* 1 byte nop */
+ MK_INSN(nopl2, ".byte 0x66, 0x90\n\r"); /* 2 byte nop */
+ MK_INSN(nopl3, ".byte 0x0f, 0x1f, 0x00\n\r"); /* 3 byte nop */
+ MK_INSN(nopl4, ".byte 0x0f, 0x1f, 0x40, 0x00\n\r"); /* 4 byte nop */
+ MK_INSN(nopl5, ".byte 0x0f, 0x1f, 0x44, 0x00, 0x00\n\r"); /* 5 byte nop */
+ MK_INSN(nopl6, ".byte 0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00\n\r"); /* 6 byte
nop */
+ MK_INSN(nopl7, ".byte 0x0f, 0x1f, 0x80, 0x00, 0x00, 0x00, 0x00\n\r"); /* 7
byte nop */
+ MK_INSN(nopl8, ".byte 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00,
0x00\n\r"); /* 8 byte nop */
+ MK_INSN(nopl9, ".byte 0x66, 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00,
0x00\n\r"); /* 9 byte nop */
+
+ trap_emulator(mem, alt_insn_page, &insn_nopl1);
+ trap_emulator(mem, alt_insn_page, &insn_nopl2);
+ trap_emulator(mem, alt_insn_page, &insn_nopl3);
+ trap_emulator(mem, alt_insn_page, &insn_nopl4);
+ trap_emulator(mem, alt_insn_page, &insn_nopl5);
+ trap_emulator(mem, alt_insn_page, &insn_nopl6);
+ trap_emulator(mem, alt_insn_page, &insn_nopl7);
+ trap_emulator(mem, alt_insn_page, &insn_nopl8);
+ trap_emulator(mem, alt_insn_page, &insn_nopl9);
+ report("nopl", 1);
+}
+
static void test_crosspage_mmio(volatile uint8_t *mem)
{
volatile uint16_t w, *pw;
@@ -1012,6 +1036,7 @@ int main()
test_mmx_movq_mf(mem, alt_insn_page);
test_movabs(mem, alt_insn_page);
+ test_nopl(mem, alt_insn_page);
test_crosspage_mmio(mem);
--
1.7.9.5
--
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