39 lines
1 KiB
Go
39 lines
1 KiB
Go
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 TestDivRegister(t *testing.T) {
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usagePatterns := []struct {
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Register cpu.Register
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Code []byte
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}{
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{x64.RAX, []byte{0x48, 0xF7, 0xF8}},
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{x64.RCX, []byte{0x48, 0xF7, 0xF9}},
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{x64.RDX, []byte{0x48, 0xF7, 0xFA}},
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{x64.RBX, []byte{0x48, 0xF7, 0xFB}},
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{x64.RSP, []byte{0x48, 0xF7, 0xFC}},
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{x64.RBP, []byte{0x48, 0xF7, 0xFD}},
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{x64.RSI, []byte{0x48, 0xF7, 0xFE}},
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{x64.RDI, []byte{0x48, 0xF7, 0xFF}},
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{x64.R8, []byte{0x49, 0xF7, 0xF8}},
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{x64.R9, []byte{0x49, 0xF7, 0xF9}},
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{x64.R10, []byte{0x49, 0xF7, 0xFA}},
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{x64.R11, []byte{0x49, 0xF7, 0xFB}},
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{x64.R12, []byte{0x49, 0xF7, 0xFC}},
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{x64.R13, []byte{0x49, 0xF7, 0xFD}},
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{x64.R14, []byte{0x49, 0xF7, 0xFE}},
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{x64.R15, []byte{0x49, 0xF7, 0xFF}},
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}
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for _, pattern := range usagePatterns {
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t.Logf("idiv %s", pattern.Register)
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code := x64.DivReg(nil, pattern.Register)
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assert.DeepEqual(t, code, pattern.Code)
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}
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}
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