Mercurial > hg > Members > innparusu > xv6_rpi_port
view uprogs/initcode.asm @ 0:c450faca55f4
Init
author | Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 22 Oct 2017 18:25:39 +0900 |
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initcode.o: file format elf32-littlearm Disassembly of section .text: 00000000 <start>: # exec(init, argv) .globl start start: push {lr} 0: e92d4000 push {lr} ldr r0, =argv 4: e59f003c ldr r0, [pc, #60] ; 48 <argv+0x8> push {r0} 8: e92d0001 push {r0} ldr r0, =init c: e59f0038 ldr r0, [pc, #56] ; 4c <argv+0xc> push {r0} 10: e92d0001 push {r0} mov r0, #SYS_exec 14: e3a00007 mov r0, #7 swi #T_SYSCALL 18: ef000040 svc 0x00000040 pop {lr} 1c: e8bd4000 pop {lr} pop {lr} 20: e8bd4000 pop {lr} pop {lr} 24: e8bd4000 pop {lr} bx lr 28: e12fff1e bx lr 0000002c <exit>: # for(;;) exit(); exit: mov r11, #SYS_exit 2c: e3a0b002 mov fp, #2 swi #T_SYSCALL 30: ef000040 svc 0x00000040 bl exit 34: ebfffffc bl 2c <exit> 00000038 <init>: 38: 696e692f .word 0x696e692f 3c: 0074 .short 0x0074 ... 00000040 <argv>: 40: 00000038 andeq r0, r0, r8, lsr r0 44: 00000000 andeq r0, r0, r0 # exec(init, argv) .globl start start: push {lr} ldr r0, =argv 48: 00000040 andeq r0, r0, r0, asr #32 push {r0} ldr r0, =init 4c: 00000038 andeq r0, r0, r8, lsr r0