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🌱 A minimal programming language and compiler. git.urbach.dev/cli/q
high-performance programming-language compiler
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import ( "testing"
"git.urbach.dev/cli/q/src/cpu" "git.urbach.dev/cli/q/src/x86" "git.urbach.dev/go/assert")
func TestNegateRegister(t *testing.T) { usagePatterns := []struct { Register cpu.Register Code []byte }{ {x86.R0, []byte{0x48, 0xF7, 0xD8}}, {x86.R1, []byte{0x48, 0xF7, 0xD9}}, {x86.R2, []byte{0x48, 0xF7, 0xDA}}, {x86.R3, []byte{0x48, 0xF7, 0xDB}}, {x86.SP, []byte{0x48, 0xF7, 0xDC}}, {x86.R5, []byte{0x48, 0xF7, 0xDD}}, {x86.R6, []byte{0x48, 0xF7, 0xDE}}, {x86.R7, []byte{0x48, 0xF7, 0xDF}}, {x86.R8, []byte{0x49, 0xF7, 0xD8}}, {x86.R9, []byte{0x49, 0xF7, 0xD9}}, {x86.R10, []byte{0x49, 0xF7, 0xDA}}, {x86.R11, []byte{0x49, 0xF7, 0xDB}}, {x86.R12, []byte{0x49, 0xF7, 0xDC}}, {x86.R13, []byte{0x49, 0xF7, 0xDD}}, {x86.R14, []byte{0x49, 0xF7, 0xDE}}, {x86.R15, []byte{0x49, 0xF7, 0xDF}}, }
for _, pattern := range usagePatterns { t.Logf("neg %s", pattern.Register) code := x86.NegateRegister(nil, pattern.Register) assert.DeepEqual(t, code, pattern.Code) }}