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Message
From: cvs at opencores.org<cvs@o...>
Date: Thu Sep 29 13:15:36 CEST 2005
Subject: [cvs-checkins] MODIFIED: or1k ...
Date: 00/05/09 29:13:15 Modified: or1k/or1ksim/testbench/support support.c
Log:
Put consecutive asm statements into one __asm__() block to prevent gcc from scheduleing other instructions between them.
Revision Changes Path
1.17 or1k/or1ksim/testbench/support/support.c
http://www.opencores.org/cvsweb.shtml/or1k/or1ksim/testbench/support/support.c.diff?r1=1.16&r2=1.17
(In the diff below, changes in quantity of whitespace are not shown.)
Index: support.c
===================================================================
RCS file: /cvsroot/nogj/or1k/or1ksim/testbench/support/support.c,v
retrieving revision 1.16
retrieving revision 1.17
diff -u -b -r1.16 -r1.17
--- support.c 31 Mar 2005 15:52:39 -0000 1.16
+++ support.c 29 Sep 2005 11:15:32 -0000 1.17
@@ -33,8 +33,8 @@
/* return value by making a syscall */
void exit (int i)
{
- asm("l.add r3,r0,%0": : "r" (i));
- asm("l.nop %0": :"K" (NOP_EXIT));
+ __asm__ __volatile__ ("l.add r3,r0,%0\n\t"
+ "l.nop %1": : "r" (i), "K" (NOP_EXIT));
while (1);
}
@@ -43,16 +43,18 @@
{
va_list args;
va_start(args, fmt);
- __asm__ __volatile__ (" l.addi\tr3,%0,0\n": : "r" (fmt) : "r3", "r4");
- __asm__ __volatile__ (" l.addi\tr4,%0,0\n": : "r" (args): "r3", "r4");
- __asm__ __volatile__ (" l.nop %0": : "K" (NOP_PRINTF));
+ __asm__ __volatile__ ("l.addi\tr3,%0,0\n\t"
+ "l.addi\tr4,%1,0\n\t"
+ "l.nop %2"
+ : : "r" (fmt), "r" (args), "K" (NOP_PRINTF)
+ : "r3", "r4");
}
/* print long */
void report(unsigned long value)
{
- asm("l.addi\tr3,%0,0": :"r" (value));
- asm("l.nop %0": :"K" (NOP_REPORT));
+ __asm__ __volatile__ ("l.addi\tr3,%0,0\n\t"
+ "l.nop %1": : "r" (value), "K" (NOP_REPORT));
}
/* just to satisfy linker */
@@ -80,14 +82,14 @@
/* For writing into SPR. */
void mtspr(unsigned long spr, unsigned long value)
{
- asm("l.mtspr\t\t%0,%1,0": : "r" (spr), "r" (value));
+ __asm__ __volatile__ ("l.mtspr\t\t%0,%1,0": : "r" (spr), "r" (value));
}
/* For reading SPR. */
unsigned long mfspr(unsigned long spr)
{
unsigned long value;
- asm("l.mfspr\t\t%0,%1,0" : "=r" (value) : "r" (spr));
+ __asm__ __volatile__ ("l.mfspr\t\t%0,%1,0" : "=r" (value) : "r" (spr));
return value;
}
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