add aip/sg_ini partial decompilations
This commit is contained in:
parent
7e535e8038
commit
4544e6742f
28
aip.lds
Normal file
28
aip.lds
Normal file
@ -0,0 +1,28 @@
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OUTPUT_FORMAT("elf32-shl", "elf32-shl", "elf32-shl")
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MEMORY
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{
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systemid (arx) : ORIGIN = 0x8c008000, LENGTH = 0x100
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toc (arx) : ORIGIN = 0x8c008100, LENGTH = 0x200
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sg_sec (arx) : ORIGIN = 0x8c008300, LENGTH = 0x3400
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sg_are (arx) : ORIGIN = 0x8c00b700, LENGTH = 0x100
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sg_ini (arx) : ORIGIN = 0x8c00b800, LENGTH = 0x2800
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aip (arx) : ORIGIN = 0x8c00e000, LENGTH = 0x2000
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}
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SECTIONS
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{
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.text.aip :
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{
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KEEP(*(.text.*aip))
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. = ALIGN(8192);
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} > aip
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/DISCARD/ :
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{
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*(.text)
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*(.data)
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*(.bss)
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*(.comment)
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}
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}
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207
aip.s
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207
aip.s
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@ -0,0 +1,207 @@
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.section .text.aip
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.global _text_aip_start
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_text_aip_start:
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bra label_10
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nop
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label_4:
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.long 0xac010000
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label_8:
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.long 0x00000000
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label_c:
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.long 0xac00e100
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label_10:
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mov.l label_1c,r0 /* ac00e020 */
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jsr @r0
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nop
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label_16:
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bra label_16
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nop
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nop
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label_1c:
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.long 0xac00e020
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/* called from label_10 */
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label_20:
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mov.l label_40,r2 /* ac00e0dc */
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mov.l label_3c,r3 /* a0000000 */
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or r3,r2
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jsr @r2 /* jump to label_dc */
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nop
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stc sr,r0
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mov.w label_38,r1 /* ff0f */
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and r1,r0
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or #0xf0,r0 /* set IMASK ; disables interrupts */
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ldc r0,sr
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bra label_44
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nop
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label_38:
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.word 0xff0f
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label_3a:
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.word 0x0000
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label_3c:
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.long 0xa0000000
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label_40:
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.long 0xac00e0dc
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label_44:
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mov.l label_4c,r0 /* ac00f400 → new stack address */
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mov r0,r15
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bra label_50
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nop
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label_4c:
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.long 0xac00f400
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label_50:
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mov.l label_70,r2 /* ac00e0d0 */
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mov.l label_6c,r3 /* a0000000 */
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or r3,r2
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jsr @r2 /* jump to label_d0 */
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nop
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label_5a:
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mov.l label_78,r3 /* ac00e13c */
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mov.l label_74,r4 /* ac00fc00 */
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mov.w label_68,r6 /* 400 */
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jsr @r3 /* jump to label_13c */
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mov #0,r5
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bra label_7c
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nop
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label_68:
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.word 0x0400
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label_6a:
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.word 0x0000
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label_6c:
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.long 0xa0000000
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label_70:
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.long 0xac00e0d0
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label_74:
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.long 0xac00fc00
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label_78:
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.long 0xac00e13c
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label_7c:
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mov.l label_c4,r0 /* 700000f0 */
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ldc r0,sr
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sub r0,r0
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mov r0,r1
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mov r0,r2
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mov r0,r3
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mov r0,r4
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mov r0,r5
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mov r0,r6
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mov r0,r7
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mov r0,r8
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mov r0,r9
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mov r0,r10
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mov r0,r11
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mov r0,r12
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mov r0,r13
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mov r0,r14
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mov.l label_bc,r0 /* 8c00f400 */
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mov r0,r15
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mov.l label_c8,r0 /* 8c00f400 */
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ldc r0,vbr
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mov.l label_c0,r0 /* 40000 */
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lds r0,fpscr
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mov.l label_b8,r0 /* ac00e004 */
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mov.l @r0,r0 /* ac010000 */
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jsr @r0
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mov r1,r0
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label_b2:
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bra label_b2
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nop
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nop
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label_b8:
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.long 0xac00e004
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label_bc:
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.long 0x8c00f400
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label_c0:
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.long 0x00040000
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label_c4:
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.long 0x700000f0
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label_c8:
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.long 0x8c00f400
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/* unreachable label_cc ? */
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label_cc:
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bra label_cc
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nop
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/* called from label_50 */
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label_d0:
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mov.l label_d8,r2 /* ff00001c (CCN.CCR) */
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mov #0,r3 /* disable all caches */
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rts
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mov.l r3,@r2
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label_d8:
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.long 0xff00001c
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/* called from label_20 */
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label_dc:
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mov.l label_f4,r0 /* ff00001c (CCN.CCR) */
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mov.l @r0,r1
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mov.l label_f8,r2 /* 89af → mask off undefined bits */
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and r2,r1
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mov.w label_f0,r2 /* 800 → ICI , instruction cache invalidation */
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or r2,r1
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mov.l r1,@r0
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bra label_fc
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nop
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nop
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label_f0:
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.word 0x0800
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nop /* unreachable nop? */
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label_f4:
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.long 0xff00001c
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label_f8:
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.word 0x89af
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label_fa:
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.word 0x0000
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label_fc:
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rts
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nop
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mov.l label_108,r0 /* 8c0000e0 */
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mov.l @r0,r1
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jmp @r1
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mov #1,r4
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label_108:
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.long 0x8c0000e0
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label_10c:
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.long 0xac00e110
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.ascii "\nAIP Ver 1.07 Build:Apr 27 1999 14:00:30\n"
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.byte 0x00
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.byte 0x00
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.byte 0x00
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/* called from label_5a */
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/*
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memset(char * dest, char value, unsigned int length)
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dest : r4
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value : r5
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length : r6
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[return]: original value of `dest` as r0
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*/
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label_13c:
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mov #0,r7
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mov r7,r3
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cmp/hs r6,r3 /* r3 ≥ r6 (unsigned) */
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/* 0 ≥ 0x400 */
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bt/s label_150
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mov r4,r0 /* ac00fc00 → r0 */
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label_146:
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add #1,r7
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mov.b r5,@r0 /* 0 → @(ac00fc00) */
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cmp/hs r6,r7 /* r7 ≥ 0x400 */
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bf/s label_146
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add #1,r0
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label_150:
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rts
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mov r4,r0
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28
sg_ini.lds
Normal file
28
sg_ini.lds
Normal file
@ -0,0 +1,28 @@
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OUTPUT_FORMAT("elf32-shl", "elf32-shl", "elf32-shl")
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MEMORY
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{
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systemid (arx) : ORIGIN = 0x8c008000, LENGTH = 0x100
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toc (arx) : ORIGIN = 0x8c008100, LENGTH = 0x200
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sg_sec (arx) : ORIGIN = 0x8c008300, LENGTH = 0x3400
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sg_are (arx) : ORIGIN = 0x8c00b700, LENGTH = 0x100
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sg_ini (arx) : ORIGIN = 0x8c00b800, LENGTH = 0x2800
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aip (arx) : ORIGIN = 0x8c00e000, LENGTH = 0x2000
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}
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SECTIONS
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{
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.text.sg_ini :
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{
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KEEP(*(.text.*sg_ini))
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. = 0x2800;
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} > sg_ini
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/DISCARD/ :
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{
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*(.text)
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*(.data)
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*(.bss)
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*(.comment)
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}
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}
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576
sg_ini.s
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576
sg_ini.s
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@ -0,0 +1,576 @@
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.section .text.sg_ini
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.global _text_sg_ini_start
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_text_sg_ini_start:
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mov.l label_18,r0 /* 8d000000 → beginning of system ram, image area */
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mov r0,r15
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nop
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nop
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mov.l label_1c,r0 /* 8c00d820 → label_2020 */
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jmp @r0
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nop
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nop
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nop
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nop
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nop
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nop
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label_18:
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.long 0x8d000000
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label_1c:
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.long 0x8c00d820
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label_20:
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.fill 0x2000,1,0x00
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label_2020:
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mov.l label_204c,r0 /* 8c00d940 → label_2140 */
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mov #0,r1
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jsr @r0
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nop
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mov.l label_2050,r0 /* 8c00d900 → label_2100 */
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jsr @r0
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nop
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mov.l label_2054,r0 /* 8c00d888 → label_2088 */
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jsr @r0
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nop
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mov.l label_2058,r0 /* 8c00dae0 → label_22e0 */
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jsr @r0
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nop
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mov.l label_205c,r0 /* 8c00db40 → label_2340 */
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jsr @r0
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nop
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nop
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mov.l label_2060,r0 /* 8c00d86c → label_206c */
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jmp @r0
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nop
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nop
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nop
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label_204c:
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.long 0x8c00d940
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label_2050:
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.long 0x8c00d900
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label_2054:
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.long 0x8c00d888
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label_2058:
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.long 0x8c00dae0
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label_205c:
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.long 0x8c00db40
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label_2060:
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.long 0x8c00d86c
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.ascii "INI90405"
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label_206c:
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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mov.l label_2084,r0 /* 8c00e000 */
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jmp @r0
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nop
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label_2084:
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.long 0x8c00e000 /* aip */
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label_2088:
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sts.l pr,@-r15
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mov.l label_20a4,r0 /* 8c000048 */
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mov.l @r0,r0
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cmp/eq #6,r0
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bt label_209e
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cmp/eq #7,r0
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bt label_209e
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cmp/eq #9,r0
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bt label_209e
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rts
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lds.l @r15+,pr
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label_209e:
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mov.l label_20a8,r1 /* 8c00d8ac → label_20ac */
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jmp @r1
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nop
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label_20a4:
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.long 0x8c000048
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label_20a8:
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.long 0x8c00d8ac
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label_20ac:
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mov.l label_20b4,r0 /* 8c0000e0 */
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mov.l @r0,r0
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jmp @r0
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mov #1,r4
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label_20b4:
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.long 0x8c0000e0
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label_20b8:
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exts.b r4,r0
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mov #57,r1
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cmp/gt r1,r0
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bf label_20c2
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add #-7,r0
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label_20c2:
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rts
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add #-48,r0
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label_20c6:
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xor r2,r2
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sts.l pr,@-r15
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mov.b @r4,r4
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mov r4,r0
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cmp/eq #32,r0
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bt label_20e0
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bsr label_20b8
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nop
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mov #1,r1
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tst r1,r0
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bt.s label_20e0
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xor r2,r2
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mov #1,r2
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label_20e0:
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lds.l @r15+,pr
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rts
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mov r2,r0
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.word 0xffff
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label_20e8:
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mov.l label_20fc,r1 ! 8c008024
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mov.l label_20f8,r3 ! 4c494d20
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mov.l @r1,r2
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cmp/eq r3,r2
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movt r0
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rts
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nop
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nop
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label_20f8:
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.long 0x4c494d20
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label_20fc:
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.long 0x8c008024
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label_2100:
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sts.l pr,@-r15
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mov.l label_212c,r3 /* 8c00d8c6 → label_20c6 */
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mov.l label_213c,r4 ! 8c008000
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jsr @r3
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add #62,r4
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tst r0,r0
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bf label_2126
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mov.l label_2130,r3 /* 8c00d8e8 → label_20e8 */
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jsr @r3
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nop
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tst r0,r0
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bf label_2126
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mov.l label_2138,r3 ! 8c010000
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mov.w @r3,r0
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cmp/eq #34,r0
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bf label_2126
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mov.l label_2134,r1 /* 8c00d8ac → label_20ac */
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jmp @r1
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lds.l @r15+,pr
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label_2126:
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lds.l @r15+,pr
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rts
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nop
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label_212c:
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.long 0x8c00d8c6
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label_2130:
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.long 0x8c00d8e8
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label_2134:
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.long 0x8c00d8ac
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label_2138:
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.long 0x8c010000
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label_213c:
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.long 0x8c008000
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label_2140:
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mov.l r2,@-r15
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mov.l r3,@-r15
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mov.l r4,@-r15
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mov.l r5,@-r15
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sts.l pr,@-r15
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mova label_2284,r0
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mov.w @(r0,r1),r1
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add r1,r0
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label_2150:
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add #3,r0
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shlr2 r0
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shll2 r0
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mov.w @r0+,r4
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tst r4,r4
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bf label_2172
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mov.w @r0+,r4
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tst r4,r4
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bf.s label_2150
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add r4,r0
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lds.l @r15+,pr
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mov.l @r15+,r5
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mov.l @r15+,r4
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mov.l @r15+,r3
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mov.l @r15+,r2
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rts
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sett
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label_2172:
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mov.w @r0+,r3
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mov.l label_2278,r1 ! ffff8000
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and r3,r1
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tst r1,r1
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bt label_2180
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xor r1,r3
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bf label_2182
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label_2180:
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mov.l @r0+,r2
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label_2182:
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mov.l label_227c,r1 ! 6000
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and r3,r1
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tst r1,r1
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bt label_21a0
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xor r1,r3
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add #12,r3
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mov.l @r0+,r1
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mov r0,r5
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add r1,r0
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label_2194:
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bsrf r3
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dt r4
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bf.s label_2194
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add #4,r2
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bra label_2150
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mov r5,r0
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label_21a0:
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bsrf r3
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dt r4
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bf.s label_21a0
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add #4,r2
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||||
bt label_2150
|
||||
mov #0,r1
|
||||
rts
|
||||
mov.l r1,@r2
|
||||
mov #0,r1
|
||||
rts
|
||||
mov.w r1,@r2
|
||||
mov #0,r1
|
||||
rts
|
||||
mov.b r1,@r2
|
||||
mov.l @r0+,r1
|
||||
rts
|
||||
mov.l r1,@r2
|
||||
mov.w @r0+,r1
|
||||
rts
|
||||
mov.l r1,@r2
|
||||
mov.l @r0+,r1
|
||||
rts
|
||||
mov.b r1,@r2
|
||||
mov #-1,r1
|
||||
rts
|
||||
mov.l r1,@r2
|
||||
mov.w @r0+,r1
|
||||
rts
|
||||
mov.w r1,@r2
|
||||
mov.l @r0+,r1
|
||||
rts
|
||||
mov.w r1,@r2
|
||||
nop
|
||||
rts
|
||||
mov.l @r2,r1
|
||||
bra label_2228
|
||||
nop
|
||||
nop
|
||||
xor r1,r1
|
||||
sts.l pr,@-r15
|
||||
mov.l r3,@-r15
|
||||
label_21f2:
|
||||
mov #8,r3
|
||||
label_21f4:
|
||||
mov.l r1,@r2
|
||||
dt r3
|
||||
bf.s label_21f4
|
||||
add #4,r2
|
||||
bsr label_2252
|
||||
nop
|
||||
dt r4
|
||||
bf label_21f2
|
||||
add #1,r4
|
||||
add #-4,r2
|
||||
mov.l @r15+,r3
|
||||
lds.l @r15+,pr
|
||||
rts
|
||||
sett
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
label_2228:
|
||||
sts.l pr,@-r15
|
||||
mov.l r0,@-r15
|
||||
mov.l r1,@-r15
|
||||
mov.l r2,@-r15
|
||||
mov.l r3,@-r15
|
||||
mov.l r4,@-r15
|
||||
mov.l r5,@-r15
|
||||
mov.l r6,@-r15
|
||||
jsr @r2
|
||||
mov.l r7,@-r15
|
||||
mov.l @r15+,r7
|
||||
mov.l @r15+,r6
|
||||
mov.l @r15+,r5
|
||||
mov.l @r15+,r4
|
||||
mov.l @r15+,r3
|
||||
mov.l @r15+,r2
|
||||
mov.l @r15+,r1
|
||||
mov.l @r15+,r0
|
||||
lds.l @r15+,pr
|
||||
rts
|
||||
sett
|
||||
label_2252:
|
||||
mov.l r0,@-r15
|
||||
mov.l r1,@-r15
|
||||
mov.l r2,@-r15
|
||||
mov.l label_2270,r1 ! a05f688c
|
||||
mov.l label_2274,r2 ! 1800
|
||||
label_225c:
|
||||
dt r2
|
||||
bt label_2266
|
||||
mov.l @r1,r0
|
||||
tst #1,r0
|
||||
bf label_225c
|
||||
label_2266:
|
||||
mov.l @r15+,r2
|
||||
mov.l @r15+,r1
|
||||
rts
|
||||
mov.l @r15+,r0
|
||||
nop
|
||||
label_2270:
|
||||
.long 0xa05f688c
|
||||
label_2274:
|
||||
.long 0x00001800
|
||||
|
||||
label_2278:
|
||||
.long 0xffff8000
|
||||
label_227c:
|
||||
.long 0x00006000
|
||||
|
||||
/* unreachable? */
|
||||
.word 0x8040
|
||||
.word 0xa05f
|
||||
label_2284:
|
||||
.word 0x0002
|
||||
.word 0x0009
|
||||
.word 0x0002
|
||||
.word 0x0006
|
||||
.word 0x0038
|
||||
.word 0xff00
|
||||
.word 0x0001
|
||||
.word 0x0018
|
||||
.word 0x002c
|
||||
.word 0xffa0
|
||||
.word 0x12c0
|
||||
.word 0x0000
|
||||
.word 0x0004
|
||||
.word 0x000c
|
||||
.word 0x0000
|
||||
.word 0xffd0
|
||||
.word 0x0001
|
||||
.word 0x0018
|
||||
.word 0x0024
|
||||
.word 0xff00
|
||||
.word 0x0020
|
||||
.word 0x0000
|
||||
.word 0x0002
|
||||
.word 0x001e
|
||||
.word 0x7490
|
||||
.word 0xa05f
|
||||
.word 0x0222
|
||||
.word 0x0222
|
||||
.word 0x0002
|
||||
.word 0x001e
|
||||
.word 0x74a0
|
||||
.word 0xa05f
|
||||
.word 0x2001
|
||||
.word 0x2001
|
||||
.word 0x0002
|
||||
.word 0x001e
|
||||
.word 0x7890
|
||||
.word 0xa05f
|
||||
.word 0x001b
|
||||
.word 0x0271
|
||||
.word 0x0000
|
||||
.word 0x0000
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
label_22e0:
|
||||
sts.l pr,@-r15
|
||||
mov.l label_2330,r4 ! 8c008000
|
||||
mov.l label_2328,r3 ! 8c00d8c6
|
||||
jsr @r3
|
||||
add #62,r4
|
||||
tst r0,r0
|
||||
bt label_2320
|
||||
mov.l label_2334,r1 ! 8ce01010
|
||||
mov.l @r1,r0
|
||||
tst r0,r0
|
||||
bt label_231a
|
||||
mov.l label_233c,r2 ! a8
|
||||
cmp/hi r2,r0
|
||||
bt label_231a
|
||||
dt r0
|
||||
mov r0,r2
|
||||
shll r2
|
||||
add r0,r2
|
||||
shll2 r2
|
||||
add r2,r1
|
||||
add #12,r1
|
||||
mov.l @r1,r2
|
||||
add #4,r1
|
||||
mov.l @r1,r3
|
||||
add r3,r2
|
||||
mov.l label_2338,r0 ! a05f74f4
|
||||
mov.l @r0,r3
|
||||
cmp/eq r3,r2
|
||||
bt label_2320
|
||||
label_231a:
|
||||
mov.l label_232c,r1 ! 8c00d8ac
|
||||
jmp @r1
|
||||
lds.l @r15+,pr
|
||||
label_2320:
|
||||
lds.l @r15+,pr
|
||||
rts
|
||||
nop
|
||||
nop
|
||||
label_2328:
|
||||
.long 0x8c00d8c6
|
||||
label_232c:
|
||||
.long 0x8c00d8ac
|
||||
label_2330:
|
||||
.long 0x8c008000
|
||||
label_2334:
|
||||
.long 0x8ce01010
|
||||
label_2338:
|
||||
.long 0xa05f74f4
|
||||
label_233c:
|
||||
.long 0x000000a8
|
||||
|
||||
label_2340:
|
||||
mov.l r14,@-r15
|
||||
mov #-1,r14
|
||||
sts.l pr,@-r15
|
||||
add #-20,r15
|
||||
mov r15,r3
|
||||
mov r15,r5
|
||||
mov.l r3,@(16,r15)
|
||||
add #16,r5
|
||||
bsr label_23e0
|
||||
mov #30,r4
|
||||
mov r0,r4
|
||||
tst r4,r4
|
||||
bt label_2384
|
||||
bsr label_2396
|
||||
nop
|
||||
tst r0,r0
|
||||
bf label_2384
|
||||
mov.l @(4,r15),r4
|
||||
mov.l label_23d4,r3 ! ffff
|
||||
cmp/hi r3,r4
|
||||
bt label_2384
|
||||
mov r15,r5
|
||||
mov.w label_23d0,r1 ! e10
|
||||
mov.l r1,@(4,r15)
|
||||
bsr label_23e0
|
||||
mov #31,r4
|
||||
mov r0,r4
|
||||
tst r4,r4
|
||||
bt label_2384
|
||||
bsr label_2396
|
||||
nop
|
||||
tst r0,r0
|
||||
bf label_2384
|
||||
mov #0,r14
|
||||
label_2384:
|
||||
tst r14,r14
|
||||
bt label_238e
|
||||
mov.l label_23d8,r2 ! 8c00d8ac
|
||||
jsr @r2
|
||||
nop
|
||||
label_238e:
|
||||
add #20,r15
|
||||
lds.l @r15+,pr
|
||||
rts
|
||||
mov.l @r15+,r14
|
||||
label_2396:
|
||||
mov.l r14,@-r15
|
||||
mov.l r13,@-r15
|
||||
sts.l pr,@-r15
|
||||
mov #0,r14
|
||||
add #-16,r15
|
||||
mov r4,r13
|
||||
label_23a2:
|
||||
bsr label_23f8
|
||||
nop
|
||||
mov r15,r5
|
||||
bsr label_23ec
|
||||
mov r13,r4
|
||||
cmp/eq #-1,r0
|
||||
bt label_23c4
|
||||
cmp/eq #1,r0
|
||||
bt label_23bc
|
||||
cmp/eq #2,r0
|
||||
bf label_23c4
|
||||
bra label_23c6
|
||||
mov #0,r0
|
||||
label_23bc:
|
||||
mov.l label_23dc,r4 ! 10000
|
||||
add #1,r14
|
||||
cmp/ge r4,r14
|
||||
bf label_23a2
|
||||
label_23c4:
|
||||
mov #-1,r0
|
||||
label_23c6:
|
||||
add #16,r15
|
||||
lds.l @r15+,pr
|
||||
mov.l @r15+,r13
|
||||
rts
|
||||
mov.l @r15+,r14
|
||||
label_23d0:
|
||||
.word 0x0e10
|
||||
.word 0xffff
|
||||
label_23d4:
|
||||
.long 0x0000ffff
|
||||
label_23d8:
|
||||
.long 0x8c00d8ac
|
||||
label_23dc:
|
||||
.long 0x00010000
|
||||
|
||||
label_23e0:
|
||||
mov #0,r6
|
||||
mov #0,r7
|
||||
mov.l label_2404,r0 ! 8c0000bc
|
||||
mov.l @r0,r0
|
||||
label_23e8:
|
||||
jmp @r0
|
||||
nop
|
||||
label_23ec:
|
||||
mov #0,r6
|
||||
mov #1,r7
|
||||
mov.l label_2404,r0 ! 8c0000bc
|
||||
mov.l @r0,r0
|
||||
jmp @r0
|
||||
nop
|
||||
label_23f8:
|
||||
mov #0,r6
|
||||
mov #2,r7
|
||||
mov.l label_2404,r0 ! 8c0000bc
|
||||
mov.l @r0,r0
|
||||
jmp @r0
|
||||
nop
|
||||
label_2404:
|
||||
.long 0x8c0000bc
|
||||
15
test_compile_ip_fragments.sh
Normal file
15
test_compile_ip_fragments.sh
Normal file
@ -0,0 +1,15 @@
|
||||
set -eux
|
||||
|
||||
sh4-none-elf-as -g --isa=sh4 --little sg_ini.s -o sg_ini.o
|
||||
sh4-none-elf-ld -T sg_ini.lds sg_ini.o -o sg_ini.elf
|
||||
sh4-none-elf-objcopy -O binary sg_ini.elf sg_ini.bin
|
||||
xxd sg_ini.bin sg_ini.bin.txt
|
||||
sh4-none-elf-objcopy -O binary sg/sg_ini.obj sg/sg_ini.bin
|
||||
xxd sg/sg_ini.bin sg/sg_ini.bin.txt
|
||||
|
||||
sh4-none-elf-as -g --isa=sh4 --little aip.s -o aip.o
|
||||
sh4-none-elf-ld -T aip.lds aip.o -o aip.elf
|
||||
sh4-none-elf-objcopy -O binary aip.elf aip.bin
|
||||
xxd aip.bin aip.bin.txt
|
||||
sh4-none-elf-objcopy -O binary sg/aip.obj sg/aip.bin
|
||||
xxd sg/aip.bin sg/aip.bin.txt
|
||||
Loading…
x
Reference in New Issue
Block a user