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handle order differences

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This commit is contained in:
Michael McLoughlin
2018-11-21 23:06:29 -06:00
parent c30d7fb743
commit b5c22e9464
3 changed files with 45 additions and 21 deletions
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25
internal/gen/loadertest.go
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@@ -1,7 +1,9 @@
package gen
import (
"fmt"
"io"
"math"
"strings"
"github.com/mmcloughlin/avo/internal/inst"
@@ -16,8 +18,8 @@ func (l LoaderTest) Generate(w io.Writer, is []*inst.Instruction) error {
for _, i := range is {
p.printf("\t// %s %s\n", i.Opcode, i.Summary)
if strings.HasPrefix(i.Opcode, "RET") {
p.printf("\t// SKIP: early RET instruction would cause assembler error")
if skip, msg := l.skip(i.Opcode); skip {
p.printf("\t// SKIP: %s\n", msg)
continue
}
@@ -25,7 +27,7 @@ func (l LoaderTest) Generate(w io.Writer, is []*inst.Instruction) error {
as := args(f.Operands)
p.printf("\t// %#v\n", f.Operands)
if as == nil {
p.printf("\t// SKIP:\n")
p.printf("\t// TODO\n")
continue
}
p.printf("\t%s\t%s\n", i.Opcode, strings.Join(as, ", "))
@@ -38,6 +40,19 @@ func (l LoaderTest) Generate(w io.Writer, is []*inst.Instruction) error {
return p.Err()
}
func (l LoaderTest) skip(opcode string) (bool, string) {
prefixes := map[string]string{
"PUSH": "PUSH can produce 'unbalanced PUSH/POP' assembler error",
"POP": "POP can produce 'unbalanced PUSH/POP' assembler error",
}
for p, m := range prefixes {
if strings.HasPrefix(opcode, p) {
return true, m
}
}
return false, ""
}
func args(ops []inst.Operand) []string {
as := make([]string, len(ops))
for i, op := range ops {
@@ -58,8 +73,8 @@ func arg(t string) string {
// <xs:enumeration value="imm4" />
// <xs:enumeration value="imm8" />
// <xs:enumeration value="imm16" />
// <xs:enumeration value="imm32" />
// <xs:enumeration value="imm64" />
"imm32": fmt.Sprintf("$%d", math.MaxInt32), // <xs:enumeration value="imm32" />
"imm64": fmt.Sprintf("$%d", math.MaxInt64), // <xs:enumeration value="imm64" />
// <xs:enumeration value="al" />
// <xs:enumeration value="cl" />
// <xs:enumeration value="r8" />