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PCI memory access working

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This commit is contained in:
Markus Fröschle
2016-10-15 21:26:49 +00:00
parent 369cc9dc0a
commit 42729fa2ea
68 changed files with 14798 additions and 2460 deletions
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32
include/util.h
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@@ -35,18 +35,7 @@
*/
static inline uint16_t swpw(uint16_t w)
{
register uint32_t result asm("d0");
__asm__ __volatile__
(
"lea %[input],a0\n\t" \
"mvz.b 1(a0),%[output]\n\t" \
"lsl.l #8,%[output]\n\t" \
"move.b (a0),%[output]\n\t" \
: [output] "=d" (result) /* output */
: [input] "o" (w) /* input */
: "cc", "a0", "memory" /* clobbered */
);
return result;
return (w << 8) | (w >> 8);
}
/*
@@ -56,23 +45,8 @@ static inline uint16_t swpw(uint16_t w)
*/
static inline uint32_t swpl(uint32_t l)
{
register uint32_t result asm("d0");
__asm__ __volatile__
(
"lea %[input],a0\n\t" \
"mvz.b 3(a0),%[output]\n\t" \
"lsl.l #8,%[output]\n\t" \
"move.b 2(a0),%[output]\n\t" \
"lsl.l #8,%[output]\n\t" \
"move.b 1(a0),%[output]\n\t" \
"lsl.l #8,%[output]\n\t" \
"move.b (a0),%[output]\n\t" \
: [output] "=d" (result) /* output */
: [input] "o" (l) /* input */
: "cc", "a0", "memory" /* clobbered */
);
return result;
return ((l & 0xff000000) >> 24) | ((l & 0x00ff0000) >> 8) |
((l & 0x0000ff00) << 8) | (l << 24);
}