41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
package x64_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"git.akyoto.dev/cli/q/src/x64"
|
|
"git.akyoto.dev/go/assert"
|
|
)
|
|
|
|
func TestJump(t *testing.T) {
|
|
usagePatterns := []struct {
|
|
Offset int8
|
|
Code []byte
|
|
}{
|
|
{0, []byte{0xEB, 0x00}},
|
|
{1, []byte{0xEB, 0x01}},
|
|
{2, []byte{0xEB, 0x02}},
|
|
{3, []byte{0xEB, 0x03}},
|
|
{127, []byte{0xEB, 0x7F}},
|
|
{-1, []byte{0xEB, 0xFF}},
|
|
{-2, []byte{0xEB, 0xFE}},
|
|
{-3, []byte{0xEB, 0xFD}},
|
|
{-128, []byte{0xEB, 0x80}},
|
|
}
|
|
|
|
for _, pattern := range usagePatterns {
|
|
t.Logf("jmp %x", pattern.Offset)
|
|
code := x64.Jump8(nil, pattern.Offset)
|
|
assert.DeepEqual(t, code, pattern.Code)
|
|
}
|
|
}
|
|
|
|
func TestConditionalJump(t *testing.T) {
|
|
assert.DeepEqual(t, x64.Jump8IfEqual(nil, 1), []byte{0x74, 0x01})
|
|
assert.DeepEqual(t, x64.Jump8IfNotEqual(nil, 1), []byte{0x75, 0x01})
|
|
assert.DeepEqual(t, x64.Jump8IfLess(nil, 1), []byte{0x7C, 0x01})
|
|
assert.DeepEqual(t, x64.Jump8IfGreaterOrEqual(nil, 1), []byte{0x7D, 0x01})
|
|
assert.DeepEqual(t, x64.Jump8IfLessOrEqual(nil, 1), []byte{0x7E, 0x01})
|
|
assert.DeepEqual(t, x64.Jump8IfGreater(nil, 1), []byte{0x7F, 0x01})
|
|
}
|