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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 TestPushNumber(t *testing.T) { usagePatterns := []struct { Number int32 Code []byte }{ {0, []byte{0x6A, 0x00}}, {1, []byte{0x6A, 0x01}}, {-1, []byte{0x6A, 0xFF}}, {127, []byte{0x6A, 0x7F}}, {128, []byte{0x68, 0x80, 0x00, 0x00, 0x00}}, {0xFF, []byte{0x68, 0xFF, 0x00, 0x00, 0x00}}, {0xFFFF, []byte{0x68, 0xFF, 0xFF, 0x00, 0x00}}, {0x7FFFFFFF, []byte{0x68, 0xFF, 0xFF, 0xFF, 0x7F}}, }
for _, pattern := range usagePatterns { t.Logf("push %d", pattern.Number) code := x86.PushNumber(nil, pattern.Number) assert.DeepEqual(t, code, pattern.Code) }}
func TestPushRegister(t *testing.T) { usagePatterns := []struct { Register cpu.Register Code []byte }{ {x86.R0, []byte{0x50}}, {x86.R1, []byte{0x51}}, {x86.R2, []byte{0x52}}, {x86.R3, []byte{0x53}}, {x86.SP, []byte{0x54}}, {x86.R5, []byte{0x55}}, {x86.R6, []byte{0x56}}, {x86.R7, []byte{0x57}}, {x86.R8, []byte{0x41, 0x50}}, {x86.R9, []byte{0x41, 0x51}}, {x86.R10, []byte{0x41, 0x52}}, {x86.R11, []byte{0x41, 0x53}}, {x86.R12, []byte{0x41, 0x54}}, {x86.R13, []byte{0x41, 0x55}}, {x86.R14, []byte{0x41, 0x56}}, {x86.R15, []byte{0x41, 0x57}}, }
for _, pattern := range usagePatterns { t.Logf("push %s", pattern.Register) code := x86.PushRegister(nil, pattern.Register) assert.DeepEqual(t, code, pattern.Code) }}