Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use push/pop

Browse Source
This commit is contained in:
matt 2013-08-11 03:09:41 +00:00
parent ef763f80c4
commit 89317f999d
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
sys/arch/arm/arm/blockio.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: blockio.S,v 1.6 2013/08/11 02:45:56 matt Exp $ */
/* $NetBSD: blockio.S,v 1.7 2013/08/11 03:09:41 matt Exp $ */
/*
* Copyright (c) 2001 Ben Harris.
@ -48,7 +48,7 @@
#include <machine/asm.h>
RCSID("$NetBSD: blockio.S,v 1.6 2013/08/11 02:45:56 matt Exp $")
RCSID("$NetBSD: blockio.S,v 1.7 2013/08/11 03:09:41 matt Exp $")
/*
* Read bytes from an I/O address into a block of memory
@ -61,7 +61,7 @@ RCSID("$NetBSD: blockio.S,v 1.6 2013/08/11 02:45:56 matt Exp $")
/* This code will look very familiar if you've read _memcpy(). */
ENTRY(read_multi_1)
mov ip, sp
stmfd sp!, {fp, ip, lr, pc}
push {fp, ip, lr, pc}
sub fp, ip, #4
subs r2, r2, #4 /* r2 = length - 4 */
blt .Lrm1_l4 /* less than 4 bytes */
@ -92,7 +92,7 @@ ENTRY(read_multi_1)
.Lrm1_l4:
adds r2, r2, #4 /* r2 = length again */
ldmdbeq fp, {fp, sp, pc}
RETc(eq)
RETc(eq) /* ??? not needed */
cmp r2, #2
ldrb r3, [r0]
strb r3, [r1], #1
@ -113,7 +113,7 @@ ENTRY(read_multi_1)
/* This code will look very familiar if you've read _memcpy(). */
ENTRY(write_multi_1)
mov ip, sp
stmfd sp!, {fp, ip, lr, pc}
push {fp, ip, lr, pc}
sub fp, ip, #4
subs r2, r2, #4 /* r2 = length - 4 */
blt .Lwm1_l4 /* less than 4 bytes */
@ -286,7 +286,7 @@ ENTRY(insw16)
/* Word aligned insw */
stmfd sp!, {r4,r5,lr}
push {r4,r5,lr}
.Linsw16loop:
ldr r3, [r0, #0x0002] /* take advantage of nonaligned
@ -317,7 +317,7 @@ ENTRY(insw16)
subs r2, r2, #0x00000008 /* Next */
bgt .Linsw16loop
ldmfd sp!, {r4,r5,pc} /* Restore regs and go home */
pop {r4,r5,pc} /* Restore regs and go home */
/*
@ -343,7 +343,7 @@ ENTRY(outsw16)
/* Word aligned outsw */
stmfd sp!, {r4,r5,lr}
push {r4,r5,lr}
.Loutsw16loop:
ldmia r1!, {r4,r5,ip,lr}
@ -384,7 +384,7 @@ ENTRY(outsw16)
subs r2, r2, #0x00000008
bgt .Loutsw16loop
ldmfd sp!, {r4,r5,pc} /* and go home */
pop {r4,r5,pc} /* and go home */
/*
* reads short ints (16 bits) from an I/O address into a block of memory
@ -411,7 +411,7 @@ ENTRY(inswm8)
/* Word aligned insw */
stmfd sp!, {r4-r9,lr}
push {r4-r9,lr}
mov lr, #0xff000000
orr lr, lr, #0x00ff0000
@ -480,7 +480,7 @@ ENTRY(inswm8)
.Linswm8_l1:
ldmfd sp!, {r4-r9,pc} /* And go home */
pop {r4-r9,pc} /* And go home */
/*
* write short ints (16 bits) to an I/O address from a block of memory
@ -507,7 +507,7 @@ ENTRY(outswm8)
/* Word aligned outsw */
stmfd sp!, {r4-r8,lr}
push {r4-r8,lr}
.Loutswm8_loop8:
cmp r2, #8
@ -584,4 +584,4 @@ ENTRY(outswm8)
str r3, [r0]
.Loutswm8_l1:
ldmfd sp!, {r4-r8,pc} /* And go home */
pop {r4-r8,pc} /* And go home */