m68k updates #3

PATCH New Richard Zidlicky 1 participant 1 message Mar 17, 2004

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Richard Zidlicky

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2004-03-17 20:40 UTC #0 lore raw

PATCH 1/1 m68k updates #3

Hi,

this is another patch where I could use some advice. m68k has hw support for "long double" so I thought I could easilly improve performance a little bit and get better precision by using them.

Appended patch shows how I was trying to do this, but there must be something else I have missed because regression tests dont work..

Anyway, the change might be usefull if someone else attempts to do the same for some other arch.

Richard

target-i386/cpu.h +2 -1

diff -urN qemu-cvs/target-i386/cpu.h qemu-cvs-new/target-i386/cpu.h
@@ -252,7 +252,8 @@
     CC_OP_NB,
 };
 
-#ifdef __i386__
+/* should work for m68k as well but needs more work somewhere */
+#if defined(__i386__) //|| defined (__mc68000)
 #define USE_X86LDOUBLE
 #endif

target-i386/exec.h +1 -1

diff -urN qemu-cvs/target-i386/exec.h qemu-cvs-new/target-i386/exec.h
@@ -440,7 +440,7 @@
 
 /* XXX: same endianness assumed */
 
-#ifdef CONFIG_USER_ONLY
+#if defined(CONFIG_USER_ONLY) && defined (__i386__)
 
 static inline CPU86_LDouble helper_fldt(uint8_t *ptr)
 {