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implement ntoh with one assembler byte

This commit is contained in:
Stefan `Sec` Zehl 2011-07-18 21:42:17 +02:00
parent 6b59593b2a
commit 7b88a9f7a9
1 changed files with 9 additions and 0 deletions
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9
firmware/basic/xxtea.c
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@ -11,6 +11,7 @@
#include <stdint.h> #include <stdint.h>
#include "xxtea.h" #include "xxtea.h"
#ifdef SAFE
uint32_t htonl(uint32_t v) uint32_t htonl(uint32_t v)
{ {
uint32_t r=0; uint32_t r=0;
@ -20,6 +21,14 @@ uint32_t htonl(uint32_t v)
r |= (v>>24)&0xFF; r |= (v>>24)&0xFF;
return r; return r;
} }
#else
uint32_t htonl(uint32_t v){
__asm("rev %[value], %[value];" \
: [value] "+r" (v) : );
return v;
};
#endif
void htonlp(uint32_t *v, uint8_t n) void htonlp(uint32_t *v, uint8_t n)
{ {