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(Hopefully) fixed wrong calculation of BaS copy adresses

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This commit is contained in:
Markus Fröschle
2012-10-15 06:14:43 +00:00
parent 017149f365
commit 553cf4cd39
1 changed files with 8 additions and 8 deletions
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16
BaS_GNU/sources/sysinit.c
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@@ -794,26 +794,26 @@ asm(
}
/* copy the BaS code contained in flash to its final location */
src = copy_start;
dst = Bas_base;
jmp = (uint8_t *) BaS - copy_start + Bas_base;
src = &copy_start;
dst = &Bas_base;
jmp = (uint8_t *) &BaS - (uint32_t) &copy_start + (uint32_t) &Bas_base;
do {
*src++ = *dst++;
*src++ = *dst++;
*src++ = *dst++;
*src++ = *dst++;
} while (src < (uint8_t *) copy_end);
} while (src < (uint8_t *) &copy_end);
flushDataCacheRegion(Bas_base, (uint8_t *) copy_end - copy_start);
flushInstructionCacheRegion(Bas_base, (uint8_t *) copy_end - copy_start);
flushDataCacheRegion(Bas_base, (uint8_t *) &copy_end - copy_start);
flushInstructionCacheRegion(Bas_base, (uint8_t *) &copy_end - copy_start);
asm volatile(
__asm__ __volatile__(
" .global _copy_start | \n\t"
" move.l %0,a3 | calculated start address\n\t"
" jmp (a3) | go! \n\t"
"_copy_start: | \n\t"
/* output */ :
/* input */ : "g" (jmp)
/* clobber */: "a3"
/* clobber */: "a3", "memory"
);
}