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Remove the dependency on the glibc-only byteswap.h.

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This commit is contained in:
David Given 2018-06-24 00:01:06 +02:00
parent 1fc20e90c0
commit f45b357740
1 changed files with 17 additions and 3 deletions
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20
plat/linuxppc/emu/emu.c
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@ -3,7 +3,6 @@
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include <strings.h> #include <strings.h>
#include <byteswap.h>
#include <math.h> #include <math.h>
#include "emu.h" #include "emu.h"
@ -24,8 +23,23 @@ static inline bool carry(void)
fatal("carry() not supported yet"); fatal("carry() not supported yet");
} }
#define swb16(x) bswap_16(x) /* Byte-swaps a 16-bit value. */
#define swb32(x) bswap_32(x) static inline uint16_t swb16(uint16_t n)
{
return
(((n >> 8) & 0xff) |
((n & 0xff) << 8));
}
/* Byte-swaps a 32-bit value. */
static inline uint32_t swb32(uint32_t n)
{
return
(((n & 0xff000000) >> 24) |
((n & 0x00ff0000) >> 8) |
((n & 0x0000ff00) << 8) |
((n & 0x000000ff) << 24));
}
/* Returns the state of a carry flag after a three-way add. */ /* Returns the state of a carry flag after a three-way add. */
static inline bool carry_3(uint32_t a, uint32_t b, uint32_t c) static inline bool carry_3(uint32_t a, uint32_t b, uint32_t c)