Implemented multiplication
This commit is contained in:
@ -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
Normal file
8
src/build/arch/x64/Mul.go
Normal file
@ -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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57
src/build/arch/x64/Mul_test.go
Normal file
57
src/build/arch/x64/Mul_test.go
Normal file
@ -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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