1
0
mirror of https://github.com/golang/go synced 2024-11-19 23:14:47 -07:00
go/src/pkg/runtime/vlop_386.s
Russ Cox 851f30136d runtime: make more build-friendly
Collapse the arch,os-specific directories into the main directory
by renaming xxx/foo.c to foo_xxx.c, and so on.

There are no substantial edits here, except to the Makefile.
The assumption is that the Go tool will #define GOOS_darwin
and GOARCH_amd64 and will make any file named something
like signals_darwin.h available as signals_GOOS.h during the
build.  This replaces what used to be done with -I$(GOOS).

There is still work to be done to make runtime build with
standard tools, but this is a big step.  After this we will have
to write a script to generate all the generated files so they
can be checked in (instead of generated during the build).

R=r, iant, r, lucio.dere
CC=golang-dev
https://golang.org/cl/5490053
2011-12-16 15:33:58 -05:00

49 lines
1.7 KiB
ArmAsm

// Inferno's libkern/vlop-386.s
// http://code.google.com/p/inferno-os/source/browse/libkern/vlop-386.s
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
// Portions Copyright 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
/*
* C runtime for 64-bit divide.
*/
TEXT _mul64by32(SB), 7, $0
MOVL r+0(FP), CX
MOVL a+4(FP), AX
MULL b+12(FP)
MOVL AX, 0(CX)
MOVL DX, BX
MOVL a+8(FP), AX
MULL b+12(FP)
ADDL AX, BX
MOVL BX, 4(CX)
RET
TEXT _div64by32(SB), 7, $0
MOVL r+12(FP), CX
MOVL a+0(FP), AX
MOVL a+4(FP), DX
DIVL b+8(FP)
MOVL DX, 0(CX)
RET