132 lines
3.8 KiB
Go
132 lines
3.8 KiB
Go
package gen
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import (
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"io"
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"strings"
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"github.com/mmcloughlin/avo/internal/inst"
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)
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type LoaderTest struct{}
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func (l LoaderTest) Generate(w io.Writer, is []*inst.Instruction) error {
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p := &printer{w: w}
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p.printf("TEXT loadertest(SB), 0, $0\n")
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for _, i := range is {
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p.printf("\t// %s %s\n", i.Opcode, i.Summary)
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if strings.HasPrefix(i.Opcode, "RET") {
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p.printf("\t// SKIP: early RET instruction would cause assembler error")
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continue
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}
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for _, f := range i.Forms {
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as := args(f.Operands)
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p.printf("\t// %#v\n", f.Operands)
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if as == nil {
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p.printf("\t// SKIP:\n")
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continue
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}
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p.printf("\t%s\t%s\n", i.Opcode, strings.Join(as, ", "))
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}
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p.printf("\n")
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}
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p.printf("\tRET\n")
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return p.Err()
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}
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func args(ops []inst.Operand) []string {
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as := make([]string, len(ops))
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for i, op := range ops {
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a := arg(op.Type)
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if a == "" {
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return nil
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}
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as[i] = a
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}
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return as
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}
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// arg generates an argument for an operand of the given type.
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func arg(t string) string {
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m := map[string]string{
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// <xs:enumeration value="1" />
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// <xs:enumeration value="3" />
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// <xs:enumeration value="imm4" />
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// <xs:enumeration value="imm8" />
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// <xs:enumeration value="imm16" />
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// <xs:enumeration value="imm32" />
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// <xs:enumeration value="imm64" />
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// <xs:enumeration value="al" />
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// <xs:enumeration value="cl" />
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// <xs:enumeration value="r8" />
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// <xs:enumeration value="r8l" />
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// <xs:enumeration value="ax" />
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// <xs:enumeration value="r16" />
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// <xs:enumeration value="r16l" />
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// <xs:enumeration value="eax" />
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// <xs:enumeration value="r32" />
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// <xs:enumeration value="r32l" />
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// <xs:enumeration value="rax" />
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"r64": "R15", // <xs:enumeration value="r64" />
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// <xs:enumeration value="mm" />
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// <xs:enumeration value="xmm0" />
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"xmm": "X7", // <xs:enumeration value="xmm" />
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// <xs:enumeration value="xmm{k}" />
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// <xs:enumeration value="xmm{k}{z}" />
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// <xs:enumeration value="ymm" />
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// <xs:enumeration value="ymm{k}" />
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// <xs:enumeration value="ymm{k}{z}" />
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// <xs:enumeration value="zmm" />
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// <xs:enumeration value="zmm{k}" />
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// <xs:enumeration value="zmm{k}{z}" />
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// <xs:enumeration value="k" />
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// <xs:enumeration value="k{k}" />
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// <xs:enumeration value="moffs32" />
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// <xs:enumeration value="moffs64" />
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// <xs:enumeration value="m" />
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// <xs:enumeration value="m8" />
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// <xs:enumeration value="m16" />
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// <xs:enumeration value="m16{k}{z}" />
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// <xs:enumeration value="m32" />
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// <xs:enumeration value="m32{k}" />
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// <xs:enumeration value="m32{k}{z}" />
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// <xs:enumeration value="m64" />
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// <xs:enumeration value="m64{k}" />
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// <xs:enumeration value="m64{k}{z}" />
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// <xs:enumeration value="m128" />
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// <xs:enumeration value="m128{k}{z}" />
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// <xs:enumeration value="m256" />
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// <xs:enumeration value="m256{k}{z}" />
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// <xs:enumeration value="m512" />
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// <xs:enumeration value="m512{k}{z}" />
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// <xs:enumeration value="m64/m32bcst" />
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// <xs:enumeration value="m128/m32bcst" />
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// <xs:enumeration value="m256/m32bcst" />
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// <xs:enumeration value="m512/m32bcst" />
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// <xs:enumeration value="m128/m64bcst" />
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// <xs:enumeration value="m256/m64bcst" />
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// <xs:enumeration value="m512/m64bcst" />
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// <xs:enumeration value="vm32x" />
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// <xs:enumeration value="vm32x{k}" />
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// <xs:enumeration value="vm64x" />
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// <xs:enumeration value="vm64x{k}" />
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// <xs:enumeration value="vm32y" />
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// <xs:enumeration value="vm32y{k}" />
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// <xs:enumeration value="vm64y" />
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// <xs:enumeration value="vm64y{k}" />
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// <xs:enumeration value="vm32z" />
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// <xs:enumeration value="vm32z{k}" />
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// <xs:enumeration value="vm64z" />
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// <xs:enumeration value="vm64z{k}" />
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// <xs:enumeration value="rel8" />
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// <xs:enumeration value="rel32" />
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// <xs:enumeration value="{er}" />
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// <xs:enumeration value="{sae}" />
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}
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return m[t]
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}
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