Implemented multiplication
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@ -11,7 +11,8 @@ hello() {
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address += 4194304
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address += 1
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length += 5
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length -= 2
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length *= 2
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length -= 7
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loop {
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syscall(write, stdout, address, length)
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@ -29,8 +29,8 @@ func Finalize(functions map[string]*Function) ([]byte, []byte) {
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func entry() *asm.Assembler {
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entry := asm.New()
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entry.Call("main")
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entry.MoveRegisterNumber(x64.SyscallRegisters[0], linux.Exit)
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entry.MoveRegisterNumber(x64.SyscallRegisters[1], 0)
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entry.RegisterNumber(asm.MOVE, x64.SyscallRegisters[0], linux.Exit)
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entry.RegisterNumber(asm.MOVE, x64.SyscallRegisters[1], 0)
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entry.Syscall()
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return entry
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}
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@ -120,11 +120,15 @@ func (f *Function) CompileInstruction(line token.List) error {
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switch expr.Token.Text() {
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case "+=":
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f.Assembler.AddRegisterNumber(register, number)
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f.Assembler.RegisterNumber(asm.ADD, register, number)
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return nil
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case "-=":
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f.Assembler.SubRegisterNumber(register, number)
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f.Assembler.RegisterNumber(asm.SUB, register, number)
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return nil
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case "*=":
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f.Assembler.RegisterNumber(asm.MUL, register, number)
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return nil
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}
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}
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@ -164,7 +168,7 @@ func (f *Function) TokenToRegister(t token.Token, register cpu.Register) error {
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return err
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}
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f.Assembler.MoveRegisterNumber(register, n)
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f.Assembler.RegisterNumber(asm.MOVE, register, n)
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return nil
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case token.String:
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@ -14,22 +14,23 @@ func TestAddRegisterNumber(t *testing.T) {
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Number int
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Code []byte
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}{
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{x64.RAX, 1, []byte{0x48, 0x83, 0xc0, 0x01}},
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{x64.RCX, 1, []byte{0x48, 0x83, 0xc1, 0x01}},
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{x64.RDX, 1, []byte{0x48, 0x83, 0xc2, 0x01}},
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{x64.RBX, 1, []byte{0x48, 0x83, 0xc3, 0x01}},
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{x64.RSP, 1, []byte{0x48, 0x83, 0xc4, 0x01}},
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{x64.RBP, 1, []byte{0x48, 0x83, 0xc5, 0x01}},
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{x64.RSI, 1, []byte{0x48, 0x83, 0xc6, 0x01}},
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{x64.RDI, 1, []byte{0x48, 0x83, 0xc7, 0x01}},
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{x64.R8, 1, []byte{0x49, 0x83, 0xc0, 0x01}},
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{x64.R9, 1, []byte{0x49, 0x83, 0xc1, 0x01}},
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{x64.R10, 1, []byte{0x49, 0x83, 0xc2, 0x01}},
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{x64.R11, 1, []byte{0x49, 0x83, 0xc3, 0x01}},
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{x64.R12, 1, []byte{0x49, 0x83, 0xc4, 0x01}},
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{x64.R13, 1, []byte{0x49, 0x83, 0xc5, 0x01}},
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{x64.R14, 1, []byte{0x49, 0x83, 0xc6, 0x01}},
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{x64.R15, 1, []byte{0x49, 0x83, 0xc7, 0x01}},
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{x64.RAX, 1, []byte{0x48, 0x83, 0xC0, 0x01}},
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{x64.RCX, 1, []byte{0x48, 0x83, 0xC1, 0x01}},
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{x64.RDX, 1, []byte{0x48, 0x83, 0xC2, 0x01}},
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{x64.RBX, 1, []byte{0x48, 0x83, 0xC3, 0x01}},
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{x64.RSP, 1, []byte{0x48, 0x83, 0xC4, 0x01}},
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{x64.RBP, 1, []byte{0x48, 0x83, 0xC5, 0x01}},
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{x64.RSI, 1, []byte{0x48, 0x83, 0xC6, 0x01}},
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{x64.RDI, 1, []byte{0x48, 0x83, 0xC7, 0x01}},
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{x64.R8, 1, []byte{0x49, 0x83, 0xC0, 0x01}},
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{x64.R9, 1, []byte{0x49, 0x83, 0xC1, 0x01}},
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{x64.R10, 1, []byte{0x49, 0x83, 0xC2, 0x01}},
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{x64.R11, 1, []byte{0x49, 0x83, 0xC3, 0x01}},
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{x64.R12, 1, []byte{0x49, 0x83, 0xC4, 0x01}},
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{x64.R13, 1, []byte{0x49, 0x83, 0xC5, 0x01}},
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{x64.R14, 1, []byte{0x49, 0x83, 0xC6, 0x01}},
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{x64.R15, 1, []byte{0x49, 0x83, 0xC7, 0x01}},
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{x64.RAX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RCX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC1, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xC2, 0xFF, 0xFF, 0xFF, 0x7F}},
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8
src/build/arch/x64/Mul.go
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8
src/build/arch/x64/Mul.go
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@ -0,0 +1,8 @@
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package x64
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import "git.akyoto.dev/cli/q/src/build/cpu"
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// MulRegNum multiplies a register with a number.
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func MulRegNum(code []byte, destination cpu.Register, number int) []byte {
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return numRegReg(code, 0x6B, 0x69, byte(destination), byte(destination), number)
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}
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src/build/arch/x64/Mul_test.go
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57
src/build/arch/x64/Mul_test.go
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@ -0,0 +1,57 @@
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package x64_test
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import (
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"testing"
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"git.akyoto.dev/cli/q/src/build/arch/x64"
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"git.akyoto.dev/cli/q/src/build/cpu"
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"git.akyoto.dev/go/assert"
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)
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func TestMulRegisterNumber(t *testing.T) {
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usagePatterns := []struct {
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Register cpu.Register
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Number int
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Code []byte
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}{
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{x64.RAX, 1, []byte{0x48, 0x6B, 0xC0, 0x01}},
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{x64.RCX, 1, []byte{0x48, 0x6B, 0xC9, 0x01}},
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{x64.RDX, 1, []byte{0x48, 0x6B, 0xD2, 0x01}},
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{x64.RBX, 1, []byte{0x48, 0x6B, 0xDB, 0x01}},
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{x64.RSP, 1, []byte{0x48, 0x6B, 0xE4, 0x01}},
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{x64.RBP, 1, []byte{0x48, 0x6B, 0xED, 0x01}},
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{x64.RSI, 1, []byte{0x48, 0x6B, 0xF6, 0x01}},
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{x64.RDI, 1, []byte{0x48, 0x6B, 0xFF, 0x01}},
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{x64.R8, 1, []byte{0x4D, 0x6B, 0xC0, 0x01}},
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{x64.R9, 1, []byte{0x4D, 0x6B, 0xC9, 0x01}},
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{x64.R10, 1, []byte{0x4D, 0x6B, 0xD2, 0x01}},
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{x64.R11, 1, []byte{0x4D, 0x6B, 0xDB, 0x01}},
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{x64.R12, 1, []byte{0x4D, 0x6B, 0xE4, 0x01}},
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{x64.R13, 1, []byte{0x4D, 0x6B, 0xED, 0x01}},
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{x64.R14, 1, []byte{0x4D, 0x6B, 0xF6, 0x01}},
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{x64.R15, 1, []byte{0x4D, 0x6B, 0xFF, 0x01}},
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{x64.RAX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RCX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RBX, 0x7FFFFFFF, []byte{0x48, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RSP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RBP, 0x7FFFFFFF, []byte{0x48, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RSI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDI, 0x7FFFFFFF, []byte{0x48, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R8, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC0, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R9, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xC9, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R10, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xD2, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R11, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xDB, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R12, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xE4, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R13, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xED, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R14, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xF6, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.R15, 0x7FFFFFFF, []byte{0x4D, 0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("mul %s, %x", pattern.Register, pattern.Number)
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code := x64.MulRegNum(nil, pattern.Register, pattern.Number)
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assert.DeepEqual(t, code, pattern.Code)
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}
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}
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@ -30,6 +30,7 @@ func TestSubRegisterNumber(t *testing.T) {
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{x64.R13, 1, []byte{0x49, 0x83, 0xED, 0x01}},
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{x64.R14, 1, []byte{0x49, 0x83, 0xEE, 0x01}},
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{x64.R15, 1, []byte{0x49, 0x83, 0xEF, 0x01}},
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{x64.RAX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xE8, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RCX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xE9, 0xFF, 0xFF, 0xFF, 0x7F}},
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{x64.RDX, 0x7FFFFFFF, []byte{0x48, 0x81, 0xEA, 0xFF, 0xFF, 0xFF, 0x7F}},
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@ -39,6 +39,12 @@ func (a *Assembler) Finalize() ([]byte, []byte) {
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code = x64.SubRegNum(code, operands.Register, operands.Number)
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}
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case MUL:
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switch operands := x.Data.(type) {
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case *RegisterNumber:
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code = x64.MulRegNum(code, operands.Register, operands.Number)
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}
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case CALL:
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code = x64.Call(code, 0x00_00_00_00)
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size := 4
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@ -2,32 +2,10 @@ package asm
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import "git.akyoto.dev/cli/q/src/build/cpu"
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// AddRegisterNumber adds a number to the given register.
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func (a *Assembler) AddRegisterNumber(reg cpu.Register, number int) {
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// RegisterNumber adds an instruction with a register and a number.
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func (a *Assembler) RegisterNumber(mnemonic Mnemonic, reg cpu.Register, number int) {
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a.Instructions = append(a.Instructions, Instruction{
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Mnemonic: ADD,
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Data: &RegisterNumber{
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Register: reg,
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Number: number,
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},
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})
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}
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// SubRegisterNumber subtracts a number from the given register.
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func (a *Assembler) SubRegisterNumber(reg cpu.Register, number int) {
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a.Instructions = append(a.Instructions, Instruction{
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Mnemonic: SUB,
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Data: &RegisterNumber{
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Register: reg,
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Number: number,
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},
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})
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}
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// MoveRegisterNumber moves a number into the given register.
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func (a *Assembler) MoveRegisterNumber(reg cpu.Register, number int) {
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a.Instructions = append(a.Instructions, Instruction{
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Mnemonic: MOVE,
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Mnemonic: mnemonic,
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Data: &RegisterNumber{
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Register: reg,
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Number: number,
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@ -7,6 +7,7 @@ const (
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ADD
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CALL
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JUMP
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MUL
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LABEL
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MOVE
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RETURN
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@ -32,6 +33,9 @@ func (m Mnemonic) String() string {
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case MOVE:
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return "move"
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case MUL:
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return "mul"
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case RETURN:
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return "return"
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