Date: Mon, 26 Jul 2010 21:24:52 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r210517 - in head/sys: amd64/amd64 i386/isa Message-ID: <201007262124.o6QLOqOP089646@svn.freebsd.org>
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Author: jkim Date: Mon Jul 26 21:24:52 2010 New Revision: 210517 URL: http://svn.freebsd.org/changeset/base/210517 Log: FNSTSW instruction can use AX register as an operand. Obtained from: fenv.h 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 21:22:57 2010 (r210516) +++ head/sys/amd64/amd64/fpu.c Mon Jul 26 21:24:52 2010 (r210517) @@ -69,7 +69,7 @@ __FBSDID("$FreeBSD$"); #define fnclex() __asm("fnclex") #define fninit() __asm("fninit") #define fnstcw(addr) __asm __volatile("fnstcw %0" : "=m" (*(addr))) -#define fnstsw(addr) __asm __volatile("fnstsw %0" : "=m" (*(addr))) +#define fnstsw(addr) __asm __volatile("fnstsw %0" : "=am" (*(addr))) #define fxrstor(addr) __asm("fxrstor %0" : : "m" (*(addr))) #define fxsave(addr) __asm __volatile("fxsave %0" : "=m" (*(addr))) #define ldmxcsr(r) __asm __volatile("ldmxcsr %0" : : "m" (r)) Modified: head/sys/i386/isa/npx.c ============================================================================== --- head/sys/i386/isa/npx.c Mon Jul 26 21:22:57 2010 (r210516) +++ head/sys/i386/isa/npx.c Mon Jul 26 21:24:52 2010 (r210517) @@ -92,7 +92,7 @@ __FBSDID("$FreeBSD$"); #define fninit() __asm("fninit") #define fnsave(addr) __asm __volatile("fnsave %0" : "=m" (*(addr))) #define fnstcw(addr) __asm __volatile("fnstcw %0" : "=m" (*(addr))) -#define fnstsw(addr) __asm __volatile("fnstsw %0" : "=m" (*(addr))) +#define fnstsw(addr) __asm __volatile("fnstsw %0" : "=am" (*(addr))) #define fp_divide_by_0() __asm("fldz; fld1; fdiv %st,%st(1); fnop") #define frstor(addr) __asm("frstor %0" : : "m" (*(addr))) #ifdef CPU_ENABLE_SSE
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