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merge zrom to rom_stream and print olen ilen

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2292 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2006-05-04 00:47:15 +00:00
parent 4c47532134
commit 608d4b2c44
6 changed files with 89 additions and 114 deletions
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34
src/lib/nrv2b.c
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@@ -1,16 +1,35 @@
#include <stdlib.h>
#include <stddef.h>
// This GETBIT is supposed to work on little endian
// 32bit systems. The algorithm will definitely need
// some fixing on other systems, but it might not be
// a problem since the nrv2b binary behaves the same..
#define GETBIT(bb, src, ilen) \
#ifndef ENDIAN
#define ENDIAN 0
#endif
#ifndef BITSIZE
#define BITSIZE 32
#endif
#define GETBIT_8(bb, src, ilen) \
(((bb = bb & 0x7f ? bb*2 : ((unsigned)src[ilen++]*2+1)) >> 8) & 1)
#define GETBIT_LE16(bb, src, ilen) \
(bb*=2,bb&0xffff ? (bb>>16)&1 : (ilen+=2,((bb=(src[ilen-2]+src[ilen-1]*256u)*2+1)>>16)&1))
#define GETBIT_LE32(bb, src, ilen) \
(bc > 0 ? ((bb>>--bc)&1) : (bc=31,\
bb=*(const uint32_t *)((src)+ilen),ilen+=4,(bb>>31)&1))
static void unrv2b(uint8_t * src, uint8_t * dst)
#if ENDIAN == 0 && BITSIZE == 8
#define GETBIT(bb, src, ilen) GETBIT_8(bb, src, ilen)
#endif
#if ENDIAN == 0 && BITSIZE == 16
#define GETBIT(bb, src, ilen) GETBIT_LE16(bb, src, ilen)
#endif
#if ENDIAN == 0 && BITSIZE == 32
#define GETBIT(bb, src, ilen) GETBIT_LE32(bb, src, ilen)
#endif
static unsigned long unrv2b(uint8_t * src, uint8_t * dst, unsigned long *ilen_p)
{
unsigned long ilen = 0, olen = 0, last_m_off = 1;
uint32_t bb = 0;
@@ -20,6 +39,7 @@ static void unrv2b(uint8_t * src, uint8_t * dst)
// skip length
src += 4;
/* FIXME: check olen with len on first 4 bytes */
for (;;) {
unsigned int m_off, m_len;
while (GETBIT(bb, src, ilen)) {
@@ -57,5 +77,9 @@ static void unrv2b(uint8_t * src, uint8_t * dst)
} while (--m_len > 0);
}
*ilen_p = ilen;
return olen;
}