88 lines
3.5 KiB
Go
88 lines
3.5 KiB
Go
package x86_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"git.urbach.dev/cli/q/src/cpu"
|
|
"git.urbach.dev/cli/q/src/x86"
|
|
"git.urbach.dev/go/assert"
|
|
)
|
|
|
|
func TestSubRegisterNumber(t *testing.T) {
|
|
usagePatterns := []struct {
|
|
Register cpu.Register
|
|
Number int
|
|
Code []byte
|
|
}{
|
|
{x86.RAX, 1, []byte{0x48, 0x83, 0xE8, 0x01}},
|
|
{x86.RCX, 1, []byte{0x48, 0x83, 0xE9, 0x01}},
|
|
{x86.RDX, 1, []byte{0x48, 0x83, 0xEA, 0x01}},
|
|
{x86.RBX, 1, []byte{0x48, 0x83, 0xEB, 0x01}},
|
|
{x86.RSP, 1, []byte{0x48, 0x83, 0xEC, 0x01}},
|
|
{x86.RBP, 1, []byte{0x48, 0x83, 0xED, 0x01}},
|
|
{x86.RSI, 1, []byte{0x48, 0x83, 0xEE, 0x01}},
|
|
{x86.RDI, 1, []byte{0x48, 0x83, 0xEF, 0x01}},
|
|
{x86.R8, 1, []byte{0x49, 0x83, 0xE8, 0x01}},
|
|
{x86.R9, 1, []byte{0x49, 0x83, 0xE9, 0x01}},
|
|
{x86.R10, 1, []byte{0x49, 0x83, 0xEA, 0x01}},
|
|
{x86.R11, 1, []byte{0x49, 0x83, 0xEB, 0x01}},
|
|
{x86.R12, 1, []byte{0x49, 0x83, 0xEC, 0x01}},
|
|
{x86.R13, 1, []byte{0x49, 0x83, 0xED, 0x01}},
|
|
{x86.R14, 1, []byte{0x49, 0x83, 0xEE, 0x01}},
|
|
{x86.R15, 1, []byte{0x49, 0x83, 0xEF, 0x01}},
|
|
|
|
{x86.RAX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xE8, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RCX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xE9, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RDX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEA, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RBX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEB, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RSP, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEC, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RBP, 0x7FFFFFFF, []byte{0x48, 0x81, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RSI, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEE, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.RDI, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEF, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R8, 0x7FFFFFFF, []byte{0x49, 0x81, 0xE8, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R9, 0x7FFFFFFF, []byte{0x49, 0x81, 0xE9, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R10, 0x7FFFFFFF, []byte{0x49, 0x81, 0xEA, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R11, 0x7FFFFFFF, []byte{0x49, 0x81, 0xEB, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R12, 0x7FFFFFFF, []byte{0x49, 0x81, 0xEC, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R13, 0x7FFFFFFF, []byte{0x49, 0x81, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R14, 0x7FFFFFFF, []byte{0x49, 0x81, 0xEE, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
{x86.R15, 0x7FFFFFFF, []byte{0x49, 0x81, 0xEF, 0xFF, 0xFF, 0xFF, 0x7F}},
|
|
}
|
|
|
|
for _, pattern := range usagePatterns {
|
|
t.Logf("sub %s, %x", pattern.Register, pattern.Number)
|
|
code := x86.SubRegisterNumber(nil, pattern.Register, pattern.Number)
|
|
assert.DeepEqual(t, code, pattern.Code)
|
|
}
|
|
}
|
|
|
|
func TestSubRegisterRegister(t *testing.T) {
|
|
usagePatterns := []struct {
|
|
Left cpu.Register
|
|
Right cpu.Register
|
|
Code []byte
|
|
}{
|
|
{x86.RAX, x86.R15, []byte{0x4C, 0x29, 0xF8}},
|
|
{x86.RCX, x86.R14, []byte{0x4C, 0x29, 0xF1}},
|
|
{x86.RDX, x86.R13, []byte{0x4C, 0x29, 0xEA}},
|
|
{x86.RBX, x86.R12, []byte{0x4C, 0x29, 0xE3}},
|
|
{x86.RSP, x86.R11, []byte{0x4C, 0x29, 0xDC}},
|
|
{x86.RBP, x86.R10, []byte{0x4C, 0x29, 0xD5}},
|
|
{x86.RSI, x86.R9, []byte{0x4C, 0x29, 0xCE}},
|
|
{x86.RDI, x86.R8, []byte{0x4C, 0x29, 0xC7}},
|
|
{x86.R8, x86.RDI, []byte{0x49, 0x29, 0xF8}},
|
|
{x86.R9, x86.RSI, []byte{0x49, 0x29, 0xF1}},
|
|
{x86.R10, x86.RBP, []byte{0x49, 0x29, 0xEA}},
|
|
{x86.R11, x86.RSP, []byte{0x49, 0x29, 0xE3}},
|
|
{x86.R12, x86.RBX, []byte{0x49, 0x29, 0xDC}},
|
|
{x86.R13, x86.RDX, []byte{0x49, 0x29, 0xD5}},
|
|
{x86.R14, x86.RCX, []byte{0x49, 0x29, 0xCE}},
|
|
{x86.R15, x86.RAX, []byte{0x49, 0x29, 0xC7}},
|
|
}
|
|
|
|
for _, pattern := range usagePatterns {
|
|
t.Logf("sub %s, %s", pattern.Left, pattern.Right)
|
|
code := x86.SubRegisterRegister(nil, pattern.Left, pattern.Right)
|
|
assert.DeepEqual(t, code, pattern.Code)
|
|
}
|
|
}
|