add automatic payload compression method to LinuxBIOS

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2288 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 5 insertions, 64 deletions

diff --git a/src/cpu/x86/car/copy_and_run.c b/src/cpu/x86/car/copy_and_run.c
index ae77e50956..4954e43841 100644
--- a/src/cpu/x86/car/copy_and_run.c
+++ b/src/cpu/x86/car/copy_and_run.c
@@ -1,31 +1,10 @@
 /* by yhlu 6.2005 
 	moved from nrv2v.c and some lines from crt0.S
+   2006/05/02 - stepan: move nrv2b to an extra file.
 */
-#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))
-
-#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)
+#if CONFIG_COMPRESS
+#include "lib/nrv2b.c"
 #endif
 
 static void copy_and_run(unsigned cpu_reset)
@@ -65,46 +44,8 @@ static void copy_and_run(unsigned cpu_reset)
 	
 //	dump_mem(src, src+0x100);
 
-        for(;;) {
-                unsigned int m_off, m_len;
-                while(GETBIT(bb, src, ilen)) {
-                        dst[olen++] = src[ilen++];
-                }
-                m_off = 1;
-                do {
-                        m_off = m_off*2 + GETBIT(bb, src, ilen);
-                } while (!GETBIT(bb, src, ilen));
-                if (m_off == 2)
-                {
-                        m_off = last_m_off;
-                }
-                else
-                {
-                        m_off = (m_off - 3)*256 + src[ilen++];
-                        if(m_off == 0xffffffffU) 
-                                break;
-                        last_m_off = ++m_off;
-                }
-                m_len = GETBIT(bb, src, ilen);
-                m_len = m_len*2 + GETBIT(bb, src, ilen);
-                if (m_len == 0)
-                {
-                        m_len++;
-                        do {
-                                m_len = m_len*2 + GETBIT(bb, src, ilen);
-                        } while(!GETBIT(bb, src, ilen));
-                        m_len += 2;
-                }
-                m_len += (m_off > 0xd00);
-                {
-                        const uint8_t *m_pos;
-                        m_pos = dst + olen - m_off;
-                        dst[olen++] = *m_pos++;
-                        do {
-                                dst[olen++] = *m_pos++;
-                        } while(--m_len > 0);
-                }
-        }
+	unrv2b(src, dst);
+
 #endif
 //	dump_mem(dst, dst+0x100);
 #if CONFIG_USE_INIT