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big, bytes: move assembly externs to separate file

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to make it easier to build package without assembly.

R=r, r2
CC=golang-dev
https://golang.org/cl/1680045
This commit is contained in:
Russ Cox 2010-06-21 19:53:08 -07:00
parent f374575fb7
commit 44ca04d3d6
6 changed files with 28 additions and 14 deletions
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1
src/pkg/big/Makefile
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@ -7,6 +7,7 @@ include ../../Make.$(GOARCH)
TARG=big TARG=big
GOFILES=\ GOFILES=\
arith.go\ arith.go\
arith_decl.go\
int.go\ int.go\
nat.go\ nat.go\
rat.go\ rat.go\

11
src/pkg/big/arith.go
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@ -56,7 +56,6 @@ func subWW_g(x, y, c Word) (z1, z0 Word) {
// z1<<_W + z0 = x*y // z1<<_W + z0 = x*y
func mulWW(x, y Word) (z1, z0 Word)
func mulWW_g(x, y Word) (z1, z0 Word) { func mulWW_g(x, y Word) (z1, z0 Word) {
// Split x and y into 2 halfWords each, multiply // Split x and y into 2 halfWords each, multiply
// the halfWords separately while avoiding overflow, // the halfWords separately while avoiding overflow,
@ -243,7 +242,6 @@ func leadingZeros(x Word) uint {
// q = (x1<<_W + x0 - r)/y // q = (x1<<_W + x0 - r)/y
func divWW(x1, x0, y Word) (q, r Word)
func divWW_g(x1, x0, y Word) (q, r Word) { func divWW_g(x1, x0, y Word) (q, r Word) {
if x1 == 0 { if x1 == 0 {
q, r = x0/y, x0%y q, r = x0/y, x0%y
@ -286,7 +284,6 @@ func divWW_g(x1, x0, y Word) (q, r Word) {
} }
func addVV(z, x, y []Word) (c Word)
func addVV_g(z, x, y []Word) (c Word) { func addVV_g(z, x, y []Word) (c Word) {
for i := range z { for i := range z {
c, z[i] = addWW_g(x[i], y[i], c) c, z[i] = addWW_g(x[i], y[i], c)
@ -295,7 +292,6 @@ func addVV_g(z, x, y []Word) (c Word) {
} }
func subVV(z, x, y []Word) (c Word)
func subVV_g(z, x, y []Word) (c Word) { func subVV_g(z, x, y []Word) (c Word) {
for i := range z { for i := range z {
c, z[i] = subWW_g(x[i], y[i], c) c, z[i] = subWW_g(x[i], y[i], c)
@ -304,7 +300,6 @@ func subVV_g(z, x, y []Word) (c Word) {
} }
func addVW(z, x []Word, y Word) (c Word)
func addVW_g(z, x []Word, y Word) (c Word) { func addVW_g(z, x []Word, y Word) (c Word) {
c = y c = y
for i := range z { for i := range z {
@ -314,7 +309,6 @@ func addVW_g(z, x []Word, y Word) (c Word) {
} }
func subVW(z, x []Word, y Word) (c Word)
func subVW_g(z, x []Word, y Word) (c Word) { func subVW_g(z, x []Word, y Word) (c Word) {
c = y c = y
for i := range z { for i := range z {
@ -324,7 +318,6 @@ func subVW_g(z, x []Word, y Word) (c Word) {
} }
func shlVW(z, x []Word, s Word) (c Word)
func shlVW_g(z, x []Word, s Word) (c Word) { func shlVW_g(z, x []Word, s Word) (c Word) {
if n := len(z); n > 0 { if n := len(z); n > 0 {
ŝ := _W - s ŝ := _W - s
@ -341,7 +334,6 @@ func shlVW_g(z, x []Word, s Word) (c Word) {
} }
func shrVW(z, x []Word, s Word) (c Word)
func shrVW_g(z, x []Word, s Word) (c Word) { func shrVW_g(z, x []Word, s Word) (c Word) {
if n := len(z); n > 0 { if n := len(z); n > 0 {
ŝ := _W - s ŝ := _W - s
@ -358,7 +350,6 @@ func shrVW_g(z, x []Word, s Word) (c Word) {
} }
func mulAddVWW(z, x []Word, y, r Word) (c Word)
func mulAddVWW_g(z, x []Word, y, r Word) (c Word) { func mulAddVWW_g(z, x []Word, y, r Word) (c Word) {
c = r c = r
for i := range z { for i := range z {
@ -368,7 +359,6 @@ func mulAddVWW_g(z, x []Word, y, r Word) (c Word) {
} }
func addMulVVW(z, x []Word, y Word) (c Word)
func addMulVVW_g(z, x []Word, y Word) (c Word) { func addMulVVW_g(z, x []Word, y Word) (c Word) {
for i := range z { for i := range z {
z1, z0 := mulAddWWW_g(x[i], y, z[i]) z1, z0 := mulAddWWW_g(x[i], y, z[i])
@ -379,7 +369,6 @@ func addMulVVW_g(z, x []Word, y Word) (c Word) {
} }
func divWVW(z []Word, xn Word, x []Word, y Word) (r Word)
func divWVW_g(z []Word, xn Word, x []Word, y Word) (r Word) { func divWVW_g(z []Word, xn Word, x []Word, y Word) (r Word) {
r = xn r = xn
for i := len(z) - 1; i >= 0; i-- { for i := len(z) - 1; i >= 0; i-- {

18
src/pkg/big/arith_decl.go Normal file
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@ -0,0 +1,18 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package big
// implemented in arith_$GOARCH.s
func mulWW(x, y Word) (z1, z0 Word)
func divWW(x1, x0, y Word) (q, r Word)
func addVV(z, x, y []Word) (c Word)
func subVV(z, x, y []Word) (c Word)
func addVW(z, x []Word, y Word) (c Word)
func subVW(z, x []Word, y Word) (c Word)
func shlVW(z, x []Word, s Word) (c Word)
func shrVW(z, x []Word, s Word) (c Word)
func mulAddVWW(z, x []Word, y, r Word) (c Word)
func addMulVVW(z, x []Word, y Word) (c Word)
func divWVW(z []Word, xn Word, x []Word, y Word) (r Word)

1
src/pkg/bytes/Makefile
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@ -8,6 +8,7 @@ TARG=bytes
GOFILES=\ GOFILES=\
buffer.go\ buffer.go\
bytes.go\ bytes.go\
bytes_decl.go\
OFILES=\ OFILES=\
asm_$(GOARCH).$O\ asm_$(GOARCH).$O\

3
src/pkg/bytes/bytes.go
View File

@ -103,9 +103,6 @@ func Index(s, sep []byte) int {
return -1 return -1
} }
// IndexByte returns the index of the first instance of c in s, or -1 if c is not present in s.
func IndexByte(s []byte, c byte) int // asm_$GOARCH.s
func indexBytePortable(s []byte, c byte) int { func indexBytePortable(s []byte, c byte) int {
for i, b := range s { for i, b := range s {
if b == c { if b == c {

8
src/pkg/bytes/bytes_decl.go Normal file
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@ -0,0 +1,8 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bytes
// IndexByte returns the index of the first instance of c in s, or -1 if c is not present in s.
func IndexByte(s []byte, c byte) int // asm_$GOARCH.s