LXR linux/arch/h8300/boot/compressed/head.S

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 *  linux/arch/h8300/boot/compressed/head.S
   4 *
   5 *  Copyright (C) 2006 Yoshinori Sato
   6 */
   7
   8#include <linux/linkage.h>
   9
  10        .section        .text..startup,"ax"
  11        .global startup
  12startup:
  13        mov.l   #startup, sp
  14        mov.l   er0, er4
  15        mov.l   #__sbss, er0
  16        mov.l   #__ebss, er1
  17        sub.l   er0, er1
  18        shlr    er1
  19        shlr    er1
  20        sub.l   er2, er2
  211:
  22        mov.l   er2, @er0
  23        adds    #4, er0
  24        dec.l   #1, er1
  25        bne     1b
  26        jsr     @decompress_kernel
  27        mov.l   er4, er0
  28        jmp     @output
  29
  30        .align  9
  31fake_headers_as_bzImage:
  32        .word   0
  33        .ascii  "HdrS"          ; header signature
  34        .word   0x0202          ; header version number (>= 0x0105)
  35                                ; or else old loadlin-1.5 will fail)
  36        .word   0               ; default_switch
  37        .word   0               ; SETUPSEG
  38        .word   0x1000
  39        .word   0               ; pointing to kernel version string
  40        .byte   0               ; = 0, old one (LILO, Loadlin,
  41                                ; 0xTV: T=0 for LILO
  42                                ;       V = version
  43        .byte   1               ; Load flags bzImage=1
  44        .word   0x8000          ; size to move, when setup is not
  45        .long   0x100000        ; 0x100000 = default for big kernel
  46        .long   0               ; address of loaded ramdisk image
  47        .long   0               ; its size in bytes
  48
  49        .end
  50