Use the asm optimised UCL decompressor for the flash bootloader as well. Verified working on Player, Recorder v1, Ondio SP and Ondio FM.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18928 a1c6a512-1295-4272-9138-f99709370657

flash/bootloader/Makefile

@@ -46,7 +46,7 @@ endif
 
 SRC := $(wildcard *.c)
 
-OBJS := $(SRC:%.c=$(OBJDIR)/%.o)
+OBJS := $(SRC:%.c=$(OBJDIR)/%.o) $(OBJDIR)/sh_nrv2e_d8.o
 
 ifdef NO_ROM
 LINKFILE = $(OBJDIR)/no_rom.lds
@@ -65,8 +65,11 @@ ifndef NO_ROM
 endif
 
 $(OBJDIR)/$(TARGET).elf : $(OBJS)
-	$(CC) -Os -nostdlib -o $(OBJDIR)/$(TARGET).elf -L$(OBJDIR) -T$(LINKFILE) -Wl,-Map,$(OBJDIR)/$(TARGET).map
+	$(CC) -Os -nostdlib -o $@ $(OBJS) -T$(LINKFILE) -Wl,-Map,$(OBJDIR)/$(TARGET).map
 
+# cross-reference, saves code duplication
+$(OBJDIR)/sh_nrv2e_d8.o : ../../firmware/decompressor/sh_nrv2e_d8.S
+	$(CC) $(CFLAGS) -c $< -o $@
 
 clean:
 	-rm -f \

flash/bootloader/bootloader.c

@@ -29,7 +29,6 @@
 
 // prototypes
 static void PlatformInit(void);
-static int ucl_nrv2e_decompress_8(const UINT8 *src, UINT8 *dst, UINT32* dst_len);
 static void DecompressStart(tImage* pImage);
 #ifdef USE_ADC
 static int ReadADC(int channel);
@@ -188,72 +187,6 @@ static void PlatformInit(void)
 }
 
 
-/* Thinned out version of the UCL 2e decompression sourcecode
- * Original (C) Markus F.X.J Oberhumer under GNU GPL license */
-#define GETBIT(bb, src, ilen) \
-    (((bb = bb & 0x7f ? bb*2 : ((unsigned)src[ilen++]*2+1)) >> 8) & 1)
-
-static int ucl_nrv2e_decompress_8(
-    const UINT8 *src, UINT8 *dst, UINT32* dst_len)
-{
-    UINT32 bb = 0;
-    unsigned ilen = 0, olen = 0, last_m_off = 1;
-
-    for (;;)
-    {
-        unsigned m_off, m_len;
-
-        while (GETBIT(bb,src,ilen))
-        {
-            dst[olen++] = src[ilen++];
-        }
-        m_off = 1;
-        for (;;)
-        {
-            m_off = m_off*2 + GETBIT(bb,src,ilen);
-            if (GETBIT(bb,src,ilen)) break;
-            m_off = (m_off-1)*2 + GETBIT(bb,src,ilen);
-        }
-        if (m_off == 2)
-        {
-            m_off = last_m_off;
-            m_len = GETBIT(bb,src,ilen);
-        }
-        else
-        {
-            m_off = (m_off-3)*256 + src[ilen++];
-            if (m_off == 0xffffffff)
-                break;
-            m_len = (m_off ^ 0xffffffff) & 1;
-            m_off >>= 1;
-            last_m_off = ++m_off;
-        }
-        if (m_len)
-            m_len = 1 + GETBIT(bb,src,ilen);
-        else if (GETBIT(bb,src,ilen))
-            m_len = 3 + GETBIT(bb,src,ilen);
-        else
-        {
-            m_len++;
-            do {
-                m_len = m_len*2 + GETBIT(bb,src,ilen);
-            } while (!GETBIT(bb,src,ilen));
-            m_len += 3;
-        }
-        m_len += (m_off > 0x500);
-        {
-            const UINT8 *m_pos;
-            m_pos = dst + olen - m_off;
-            dst[olen++] = *m_pos++;
-            do dst[olen++] = *m_pos++; while (--m_len > 0);
-        }
-    }
-    *dst_len = olen;
-
-    return ilen;
-}
-
-
 /* move the image into place and start it */
 static void DecompressStart(tImage* pImage)
 {

flash/bootloader/bootloader.h

@@ -77,6 +77,7 @@ typedef struct
 #define FW_VERSION *(unsigned short*)(FLASH_BASE + 0xFE) // firmware version
 
 // prototypes
+int ucl_nrv2e_decompress_8(const UINT8 *src, UINT8 *dst, UINT32* dst_len);
 void _main(void) __attribute__ ((section (".startup")));
 int main(void);
 

flash/bootloader/bootloader.lds

@@ -1,5 +1,4 @@
 OUTPUT_FORMAT(elf32-sh)
-INPUT(bootloader.o)
 
 MEMORY
 {
@@ -19,6 +18,7 @@ SECTIONS
 	.text :
 	{	 
 		*(.text)	
+		*(.icode)
 		. = ALIGN(0x4);
 	} > IRAM
 	

flash/bootloader/no_rom.lds

@@ -2,7 +2,6 @@
    where the flash ROM is mirrored to address zero */
 
 OUTPUT_FORMAT(elf32-sh)
-INPUT(bootloader.o)
 
 MEMORY
 {
@@ -29,6 +28,7 @@ SECTIONS
 	{	 
 		_begin_text = .;
 		*(.text)	
+		*(.icode)
 		. = ALIGN(0x4);
 		_end_text = .;
 	} > IRAM