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Stub out swap funcs for pre armv6 which lack REV/REV16. WRITEME.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32240 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol
2009-08-11 03:24:22 +00:00
parent e3db8e35e3
commit 166983b771
1 changed files with 12 additions and 0 deletions
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src/system/libroot/os/arch/arm/byteorder.S
+12
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@@ -10,23 +10,35 @@
/* uint16 __swap_int16(uint16 value) /* uint16 __swap_int16(uint16 value)
*/ */
FUNCTION(__swap_int16): FUNCTION(__swap_int16):
#if __ARM_ARCH__ >= 6
rev16 r0,r0; rev16 r0,r0;
#else
#warning IMPLEMENT_ME
#endif
FUNCTION_END(__swap_int16) FUNCTION_END(__swap_int16)
/* uint32 __swap_int32(uint32 value) /* uint32 __swap_int32(uint32 value)
*/ */
FUNCTION(__swap_int32): FUNCTION(__swap_int32):
#if __ARM_ARCH__ >= 6
rev r0,r0; rev r0,r0;
#else
#warning IMPLEMENT_ME
#endif
FUNCTION_END(__swap_int32) FUNCTION_END(__swap_int32)
/* uint64 __swap_int64(uint64 value) /* uint64 __swap_int64(uint64 value)
*/ */
FUNCTION(__swap_int64): FUNCTION(__swap_int64):
#if __ARM_ARCH__ >= 6
rev r0,r0; rev r0,r0;
rev r1,r1; rev r1,r1;
mov r12,r0; mov r12,r0;
mov r0,r1; mov r0,r1;
mov r1,r12; mov r1,r12;
#else
#warning IMPLEMENT_ME
#endif
FUNCTION_END(__swap_int64) FUNCTION_END(__swap_int64)
/* TODO: The following functions can surely be optimized. A simple optimization /* TODO: The following functions can surely be optimized. A simple optimization