Author: jkim
Date: Mon Jul 26 23:20:55 2010
New Revision: 210521
URL: http://svn.freebsd.org/changeset/base/210521
Log:
Simplify fldcw() macro. There is no reason to use pointer here. No object
file change after this commit (verified with md5).
Modified:
head/sys/amd64/amd64/fpu.c
head/sys/i386/isa/npx.c
Modified: head/sys/amd64/amd64/fpu.c
==============================================================================
--- head/sys/amd64/amd64/fpu.c Mon Jul 26 23:02:18 2010 (r210520)
+++ head/sys/amd64/amd64/fpu.c Mon Jul 26 23:20:55 2010 (r210521)
@@ -65,7 +65,7 @@ __FBSDID("$FreeBSD$");
#if defined(__GNUCLIKE_ASM) && !defined(lint)
-#define fldcw(addr) __asm __volatile("fldcw %0" : : "m"
(*(addr)))
+#define fldcw(cw) __asm __volatile("fldcw %0" : : "m"
(cw))
#define fnclex() __asm __volatile("fnclex")
#define fninit() __asm __volatile("fninit")
#define fnstcw(addr) __asm __volatile("fnstcw %0" : "=m"
(*(addr)))
@@ -80,7 +80,7 @@ __FBSDID("$FreeBSD$");
#else /* !(__GNUCLIKE_ASM && !lint) */
-void fldcw(caddr_t addr);
+void fldcw(u_short cw);
void fnclex(void);
void fninit(void);
void fnstcw(caddr_t addr);
@@ -124,7 +124,7 @@ fpuinit(void)
stop_emulating();
fninit();
control = __INITIAL_FPUCW__;
- fldcw(&control);
+ fldcw(control);
mxcsr = __INITIAL_MXCSR__;
ldmxcsr(mxcsr);
if (PCPU_GET(cpuid) == 0) {
@@ -425,7 +425,7 @@ fpudna(void)
*/
fxrstor(&fpu_initialstate);
if (pcb->pcb_initial_fpucw != __INITIAL_FPUCW__)
- fldcw(&pcb->pcb_initial_fpucw);
+ fldcw(pcb->pcb_initial_fpucw);
pcb->pcb_flags |= PCB_FPUINITDONE;
if (PCB_USER_FPU(pcb))
pcb->pcb_flags |= PCB_USERFPUINITDONE;
Modified: head/sys/i386/isa/npx.c
==============================================================================
--- head/sys/i386/isa/npx.c Mon Jul 26 23:02:18 2010 (r210520)
+++ head/sys/i386/isa/npx.c Mon Jul 26 23:20:55 2010 (r210521)
@@ -87,7 +87,7 @@ __FBSDID("$FreeBSD$");
#if defined(__GNUCLIKE_ASM) && !defined(lint)
-#define fldcw(addr) __asm __volatile("fldcw %0" : : "m"
(*(addr)))
+#define fldcw(cw) __asm __volatile("fldcw %0" : : "m"
(cw))
#define fnclex() __asm __volatile("fnclex")
#define fninit() __asm __volatile("fninit")
#define fnsave(addr) __asm __volatile("fnsave %0" : "=m"
(*(addr)))
@@ -111,7 +111,7 @@ __FBSDID("$FreeBSD$");
#endif
#else /* !(__GNUCLIKE_ASM && !lint) */
-void fldcw(caddr_t addr);
+void fldcw(u_short cw);
void fnclex(void);
void fninit(void);
void fnsave(caddr_t addr);
@@ -266,7 +266,7 @@ npx_probe(device_t dev)
* 16 works.
*/
control &= ~(1 << 2); /* enable divide by 0 trap */
- fldcw(&control);
+ fldcw(control);
#ifdef FPU_ERROR_BROKEN
/*
* FPU error signal doesn't work on some CPU
@@ -364,7 +364,7 @@ npxinit(void)
fninit();
#endif
control = __INITIAL_NPXCW__;
- fldcw(&control);
+ fldcw(control);
start_emulating();
intr_restore(savecrit);
}
@@ -683,7 +683,7 @@ npxdna(void)
*/
fpurstor(&npx_initialstate);
if (pcb->pcb_initial_npxcw != __INITIAL_NPXCW__)
- fldcw(&pcb->pcb_initial_npxcw);
+ fldcw(pcb->pcb_initial_npxcw);
pcb->pcb_flags |= PCB_NPXINITDONE;
if (PCB_USER_FPU(pcb))
pcb->pcb_flags |= PCB_NPXUSERINITDONE;
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