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-rw-r--r--firmware/decompressor/Makefile52
-rw-r--r--firmware/decompressor/decompressor.c73
-rw-r--r--firmware/decompressor/link.lds71
-rw-r--r--firmware/decompressor/sh_nrv2e_d8.S149
-rw-r--r--firmware/decompressor/startup.S59
5 files changed, 0 insertions, 404 deletions
diff --git a/firmware/decompressor/Makefile b/firmware/decompressor/Makefile
deleted file mode 100644
index 30bb04e480..0000000000
--- a/firmware/decompressor/Makefile
+++ /dev/null
@@ -1,52 +0,0 @@
1# __________ __ ___.
2# Open \______ \ ____ ____ | | _\_ |__ _______ ___
3# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
4# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
5# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
6# \/ \/ \/ \/ \/
7# $Id$
8#
9
10ifndef V
11SILENT=@
12endif
13PRINTS=$(SILENT)$(call info,$(1))
14
15LDS := link.lds
16LINKFILE = $(OBJDIR)/linkage.lds
17OBJS := $(OBJDIR)/decompressor.o $(OBJDIR)/uclimage.o \
18 $(OBJDIR)/sh_nrv2e_d8.o $(OBJDIR)/startup.o
19CFLAGS = $(GCCOPTS)
20
21all: $(OBJDIR)/compressed.bin
22
23$(OBJDIR)/compressed.bin : $(OBJDIR)/compressed.elf
24 $(call PRINTS,OBJCOPY $(@F))$(OC) -O binary $< $@
25
26$(OBJDIR)/compressed.elf : $(OBJS) $(LINKFILE)
27 $(call PRINTS,LD $(@F))$(CC) $(GCCOPTS) -Os -nostdlib -o $@ $(OBJS) -T$(LINKFILE) -Wl,-Map,$(OBJDIR)/compressed.map
28
29$(LINKFILE): $(LDS)
30 $(SILENT)mkdir -p $(dir $@)
31 $(call PRINTS,Build LDS file)cat $< | $(CC) -DMEMORYSIZE=$(MEMORYSIZE) $(INCLUDES) $(TARGET) $(DEFINES) -E -P $(ROMBUILD) - >$@
32
33$(OBJDIR)/decompressor.o : decompressor.c $(OBJDIR)/uclimage.c
34 $(SILENT)mkdir -p $(dir $@)
35 $(call PRINTS,CC $<)$(CC) $(CFLAGS) -I$(OBJDIR) -c $< -o $@
36
37$(OBJDIR)/startup.o : startup.S
38 $(SILENT)mkdir -p $(dir $@)
39 $(call PRINTS,AS $<)$(CC) $(CFLAGS) -c $< -o $@
40
41$(OBJDIR)/sh_nrv2e_d8.o : sh_nrv2e_d8.S
42 $(SILENT)mkdir -p $(dir $@)
43 $(call PRINTS,AS $<)$(CC) $(CFLAGS) -c $< -o $@
44
45$(OBJDIR)/uclimage.o : $(OBJDIR)/uclimage.c
46 $(SILENT)mkdir -p $(dir $@)
47 $(call PRINTS,CC $(<F))$(CC) $(CFLAGS) -c $< -o $@
48
49$(OBJDIR)/uclimage.c : $(FLASHFILE) $(TOOLSDIR)/ucl2src.pl
50 $(SILENT)mkdir -p $(dir $@)
51 $(call PRINTS,UCL2SRC $(<F))perl -s $(TOOLSDIR)/ucl2src.pl -p=$(OBJDIR)/uclimage $<
52
diff --git a/firmware/decompressor/decompressor.c b/firmware/decompressor/decompressor.c
deleted file mode 100644
index 11888ef272..0000000000
--- a/firmware/decompressor/decompressor.c
+++ /dev/null
@@ -1,73 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2005 by Jens Arnold
11 *
12 * Self-extracting firmware loader to work around the 200KB size limit
13 * for archos player and recorder v1
14 * Decompresses a built-in UCL-compressed image (method 2e) and executes it.
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version 2
19 * of the License, or (at your option) any later version.
20 *
21 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
22 * KIND, either express or implied.
23 *
24 ****************************************************************************/
25
26#include "uclimage.h"
27
28#define ICODE_ATTR __attribute__ ((section (".icode")))
29
30/* Symbols defined in the linker script */
31extern char iramcopy[], iramstart[], iramend[];
32extern char stackend[];
33extern char loadaddress[], dramend[];
34
35/* Prototypes */
36extern void start(void);
37
38void main(void) ICODE_ATTR;
39int ucl_nrv2e_decompress_8(const unsigned char *src, unsigned char *dst,
40 unsigned long *dst_len) ICODE_ATTR;
41
42/* Vector table */
43void (*vbr[]) (void) __attribute__ ((section (".vectors"))) =
44{
45 start, (void *)stackend,
46 start, (void *)stackend,
47 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
48 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
49};
50
51/** All subsequent functions are executed from IRAM **/
52
53#define ALIGNED_IMG_SIZE ((sizeof(image) + 3) & ~3)
54/* This will never return */
55void main(void)
56{
57 unsigned long dst_len; /* dummy */
58 unsigned long *src = (unsigned long *)image;
59 unsigned long *dst = (unsigned long *)(dramend - ALIGNED_IMG_SIZE);
60
61 do
62 *dst++ = *src++;
63 while (dst < (unsigned long *)dramend);
64
65 ucl_nrv2e_decompress_8(dramend - ALIGNED_IMG_SIZE, loadaddress, &dst_len);
66
67 asm(
68 "mov.l @%0+,r0 \n"
69 "jmp @r0 \n"
70 "mov.l @%0+,r15 \n"
71 : : "r"(loadaddress) : "r0"
72 );
73}
diff --git a/firmware/decompressor/link.lds b/firmware/decompressor/link.lds
deleted file mode 100644
index 51c0460d42..0000000000
--- a/firmware/decompressor/link.lds
+++ /dev/null
@@ -1,71 +0,0 @@
1OUTPUT_FORMAT(elf32-sh)
2
3#define DRAMORIG 0x09000000
4#define DRAMSIZE (MEMORYSIZE * 0x00100000)
5#define IRAMORIG 0x0f000000
6#define IRAMSIZE 0x00001000
7
8MEMORY
9{
10 IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
11 DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
12}
13
14SECTIONS
15{
16 .vectors :
17 {
18 _loadaddress = .;
19 _dramend = . + DRAMSIZE;
20 KEEP(*(.vectors))
21 . = ALIGN(0x200);
22 } > DRAM
23
24 .text :
25 {
26 *(.start)
27 *(.text)
28 . = ALIGN(0x4);
29 } > DRAM
30
31 .rodata :
32 {
33 *(.rodata*)
34 *(.rodata.str1.1)
35 *(.rodata.str1.4)
36 . = ALIGN(0x4);
37 } > DRAM
38
39 .data :
40 {
41 *(.data)
42 . = ALIGN(0x4);
43 _iramcopy = .;
44 } > DRAM
45
46 .iram IRAMORIG : AT ( _iramcopy )
47 {
48 _iramstart = .;
49 *(.icode)
50 *(.idata)
51 . = ALIGN(0x4);
52 _iramend = .;
53 } > IRAM
54
55 .stack :
56 {
57 _stackbegin = .;
58 *(.stack)
59 . += 0x0800;
60 _stackend = .;
61 } > IRAM
62
63 .bss :
64 {
65 _edata = .;
66 *(.bss)
67 *(COMMON)
68 . = ALIGN(0x4);
69 _end = .;
70 } > DRAM
71}
diff --git a/firmware/decompressor/sh_nrv2e_d8.S b/firmware/decompressor/sh_nrv2e_d8.S
deleted file mode 100644
index cf333e9c97..0000000000
--- a/firmware/decompressor/sh_nrv2e_d8.S
+++ /dev/null
@@ -1,149 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2008 by Jens Arnold
11 *
12 * based on arm_nrv2e_d8.S -- ARM decompressor for NRV2E
13 * Copyright (C) 1996-2008 Markus Franz Xaver Johannes Oberhumer
14 * Copyright (C) 1996-2008 Laszlo Molnar
15 * Copyright (C) 2000-2008 John F. Reiser
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version 2
20 * of the License, or (at your option) any later version.
21 *
22 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
23 * KIND, either express or implied.
24 *
25 ****************************************************************************/
26
27#define src r4
28#define dst r5
29#define len r6 /* overlaps 'cnt' */
30#define cnt r6 /* overlaps 'len' while reading an offset */
31#define tmp r7
32
33#define off r0 /* must be r0 because of indexed addressing */
34#define bits r1
35#define bitmask r2
36#define wrnk r3 /* -0x500 -M2_MAX_OFFSET before "wrinkle" */
37
38
39#define GETBIT \
40 tst bits, bitmask; \
41 bf 1f; \
42 bsr get1_n2e; \
431: \
44 shll bits /* using the delay slot on purpose */
45
46#define getnextb(reg) GETBIT; rotcl reg
47#define jnextb0 GETBIT; bf
48#define jnextb1 GETBIT; bt
49
50 .section .icode,"ax",@progbits
51 .align 2
52 .global _ucl_nrv2e_decompress_8
53 .type _ucl_nrv2e_decompress_8,@function
54
55/* src_len = ucl_nrv2e_decompress_8(const unsigned char *src,
56 * unsigned char *dst,
57 * unsigned long *dst_len)
58 */
59
60_ucl_nrv2e_decompress_8:
61 sts.l pr, @-r15
62 mov #-1, off ! off = -1 initial condition
63 mov.l r6, @-r15
64 mov #-5, wrnk
65 mov.l r5, @-r15
66 shll8 wrnk ! nrv2e -M2_MAX_OFFSET
67 mov.l r4, @-r15
68 mov #-1, bitmask
69 shlr bitmask ! 0x7fffffff for testing before shifting
70 bra top_n2e
71 not bitmask, bits ! refill next time (MSB must be set)
72
73eof_n2e:
74 mov.l @r15+, r0 ! r0 = orig_src
75 mov.l @r15+, r1 ! r1 = orig_dst
76 sub r0, src
77 mov.l @r15+, r2 ! r2 = plen_dst
78 sub r1, dst
79 mov.l dst, @r2
80 lds.l @r15+, pr
81 rts
82 mov src, r0
83
84lit_n2e:
85 mov.b @src, tmp
86 add #1, src ! Need to fill the pipeline latency anyway
87 mov.b tmp, @dst
88 add #1, dst
89top_n2e:
90 jnextb1 lit_n2e
91 bra getoff_n2e
92 mov #1, cnt
93
94off_n2e:
95 add #-1, cnt
96 getnextb(cnt)
97getoff_n2e:
98 getnextb(cnt)
99 jnextb0 off_n2e
100
101 mov #-4, tmp ! T=1 on entry, so this does
102 addc cnt, tmp ! tmp = cnt - 3, T = (cnt >= 3)
103 mov #0, len ! cnt and len share a reg!
104 bf offprev_n2e ! cnt was 2
105 mov.b @src+, off ! low 7+1 bits
106 shll8 tmp
107 extu.b off, off
108 or tmp, off
109 not off, off ! off = ~off
110 tst off, off
111 bt eof_n2e
112 shar off
113 bt lenlast_n2e
114 bf lenmore_n2e ! always taken if the preceding bt isn't
115
116offprev_n2e:
117 jnextb1 lenlast_n2e
118lenmore_n2e:
119 mov #1, len
120 jnextb1 lenlast_n2e
121len_n2e:
122 getnextb(len)
123 jnextb0 len_n2e
124 bra gotlen_n2e
125 mov #6-2, tmp
126
127get1_n2e: ! in: T bit set
128 mov.b @src+, bits ! SH1 sign-extends on load
129 rotcl bits ! LSB = T, T = MSB
130 shll16 bits
131 rts
132 shll8 bits
133
134lenlast_n2e:
135 getnextb(len) ! 0,1,2,3
136 mov #2, tmp
137gotlen_n2e:
138 cmp/gt off, wrnk ! too far away, so minimum match length is 3
139 addc tmp, len
140copy_n2e:
141 add #-1, len
142 mov.b @(off,dst), tmp
143 tst len, len
144 mov.b tmp, @dst
145 add #1, dst
146 bf copy_n2e
147 bt top_n2e ! always taken if the preceding bf isn't
148
149 .size _ucl_nrv2e_decompress_8, .-_ucl_nrv2e_decompress_8
diff --git a/firmware/decompressor/startup.S b/firmware/decompressor/startup.S
deleted file mode 100644
index 1e5d6fa1ee..0000000000
--- a/firmware/decompressor/startup.S
+++ /dev/null
@@ -1,59 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2005 by Jens Arnold
11 * based on crt0.S by Linus Nielsen Feltzing
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ****************************************************************************/
22 .section .start,"ax",@progbits
23 .global _start
24_start:
25 /* copy the .iram section */
26 mov.l .iramcopy_k,r0
27 mov.l .iram_k,r1
28 mov.l .iramend_k,r2
29 /* Note: We cannot put a PC relative load into the delay slot of a 'bra'
30 instruction (the offset would be wrong), but there is nothing else to
31 do before the loop, so the delay slot would be 'nop'. The cmp / bf
32 sequence is the same length, but more efficient. */
33 cmp/hi r1,r2
34 bf .noiramcopy
35.iramloop:
36 mov.l @r0+,r3
37 mov.l r3,@r1
38 add #4,r1
39 cmp/hi r1,r2
40 bt .iramloop
41.noiramcopy:
42
43 /* call the mainline */
44 mov.l .main_k,r0
45 mov.l .stackend_k,r15
46 jmp @r0
47 nop
48
49 .align 2
50.iramcopy_k:
51 .long _iramcopy
52.iram_k:
53 .long _iramstart
54.iramend_k:
55 .long _iramend
56.stackend_k:
57 .long _stackend
58.main_k:
59 .long _main
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-23 21:32:20 +0000