wok-6.x annotate linld/stuff/src/JUMP.ASM @ rev 20475

Typos in receipt variable names
author Pascal Bellard <pascal.bellard@slitaz.org>
date Wed Oct 17 10:43:04 2018 +0200 (2018-10-17)
parents 2e46d946d7a8
children cd2def637347
rev   line source
pascal@19515 1 ;***************************************************************
pascal@19515 2 ;****** This file is distributed under GPL
pascal@19515 3 ;***************************************************************
pascal@19515 4 ideal
pascal@19515 5 %crefref
pascal@19515 6 %noincl
pascal@19515 7 %nomacs
pascal@19636 8 ifdef NO386
pascal@19636 9 p8086
pascal@19636 10 else
pascal@19515 11 p386
pascal@19636 12 endif
pascal@19515 13
pascal@19903 14 group DGROUP _TEXT,_DATA,_BSS
pascal@19515 15 assume cs:DGROUP,ds:DGROUP
pascal@19515 16
pascal@19903 17 segment _DATA byte public use16 'DATA'
pascal@19903 18
pascal@19903 19 overflow db "Loaded too close to 9000:0",0
pascal@19903 20
pascal@19903 21 ends _DATA
pascal@19903 22
pascal@19515 23 segment _BSS byte public use16 'BSS'
pascal@19515 24
pascal@19899 25 global _imgs:dword
pascal@19515 26
pascal@19515 27 ends _BSS
pascal@19515 28
pascal@19515 29
pascal@19515 30 segment _TEXT byte public use16 'CODE'
pascal@19515 31
pascal@19905 32 ;***************************************************************
pascal@20473 33 ;void dos_shutdown()
pascal@20473 34 ;***************************************************************
pascal@20473 35
pascal@20473 36 macro dos_shutdown
pascal@20473 37 xor bx,bx
pascal@20473 38 mov ds,bx
pascal@20473 39 ifndef NO386
pascal@20473 40 push [dword bx+4] ; save step
pascal@20473 41 mov [word bx+4],offset step19
pascal@20473 42 else
pascal@20473 43 mov ax,offset step19
pascal@20473 44 xchg ax,[word bx+4]
pascal@20473 45 push [word bx+6]
pascal@20473 46 push ax ; save step
pascal@20473 47 endif
pascal@20473 48 mov [word cs:sssp],sp
pascal@20473 49 ;cmp [byte bx+7],0F0h
pascal@20473 50 ;jnc notdos
pascal@20473 51 mov [bx+6],cs
pascal@20473 52 pushf
pascal@20473 53 pushf
pascal@20473 54 pop ax
pascal@20473 55 inc ah ; set TF
pascal@20473 56 push ax
pascal@20473 57 popf
pascal@20473 58 call [dword bx+4*19h]
pascal@20473 59 notdos:
pascal@20473 60 ifndef NO386
pascal@20473 61 lss sp,[dword cs:sssp]
pascal@20473 62 else
pascal@20473 63 lds ax,[dword cs:sssp]
pascal@20473 64 push ds
pascal@20473 65 pop ss
pascal@20473 66 xchg ax,sp
pascal@20473 67 endif
pascal@20473 68 xor bx,bx
pascal@20473 69 mov ds,bx
pascal@20473 70 ifndef NO386
pascal@20473 71 pop [dword bx+4] ; restore step
pascal@20473 72 else
pascal@20473 73 pop [word bx+4] ; restore step
pascal@20473 74 pop [word bx+6]
pascal@20473 75 endif
pascal@20473 76 endm
pascal@20473 77 macro step19code
pascal@20473 78 step19:
pascal@20473 79 push bx
pascal@20473 80 push ds
pascal@20473 81 mov bx,sp
pascal@20473 82 lds bx,[dword ss:bx+4] ; read cs:ip
pascal@20473 83 cmp [word bx],19CDh ; int 19h ?
pascal@20473 84 pop ds
pascal@20473 85 pop bx
pascal@20473 86 je notdos
pascal@20473 87 iret
pascal@20473 88 endm
pascal@20473 89
pascal@20473 90
pascal@20473 91 ;***************************************************************
pascal@19905 92 ;void boot_kernel();
pascal@19905 93 ;****** Never returns
pascal@19905 94 ;***************************************************************
pascal@19903 95 global _boot_kernel:near
pascal@19905 96 proc _boot_kernel near
pascal@19905 97
pascal@20142 98 p8086
pascal@19903 99 extrn _heap_top:word
pascal@20475 100 global sssp
pascal@19903 101 ifdef NO386
pascal@20475 102 sssp:
pascal@19903 103 extrn _topseg:near
pascal@19903 104 call near _topseg
pascal@20475 105 mov [word sssp+2],ax
pascal@19903 106 xchg ax,bx
pascal@20473 107 mov ax,[_heap_top]
pascal@20473 108 inc ah
pascal@19903 109 mov cl,4
pascal@19903 110 shr ax,cl
pascal@19903 111 else
pascal@20142 112 p386
pascal@20473 113 mov ax,[_heap_top]
pascal@20473 114 inc ah
pascal@20475 115 ;shr ax,4
pascal@20475 116 db 0C1h,0E8h
pascal@20475 117 sssp:
pascal@20475 118 db 4
pascal@20475 119 mov bx,9000h
pascal@19903 120 endif
pascal@20473 121 mov es,bx
pascal@19903 122 mov dx,cs
pascal@19903 123 add ax,dx
pascal@19903 124 cmp ax,bx
pascal@19905 125 jb @@nooverflow
pascal@19903 126 ; Oops! We can stomp on our toes... better stop now
pascal@19903 127 mov bx,offset overflow
pascal@19903 128 extrn die:near
pascal@20427 129 call near die
pascal@19905 130 @@nooverflow:
pascal@20473 131 ;cli ; we start doing destructive things to DOS
pascal@19571 132 push es
pascal@19571 133 pop ss
pascal@19571 134 mov sp,0A000h
pascal@19900 135 extrn _csip:dword
pascal@19900 136 push [dword _csip]
pascal@19636 137 extrn _rm_size:word
pascal@19636 138 mov si,offset _rm_size ; _rm_size, _pm_high, _rm_buf
pascal@19636 139 lodsw
pascal@19636 140 xchg ax,cx ; _rm_size
pascal@19636 141 lodsb ; _pm_high
pascal@19636 142 mov si,[si] ; _rm_buf
pascal@19571 143 xor di,di
pascal@19571 144 ;cld
pascal@19571 145 rep
pascal@19571 146 movsb
pascal@19571 147 extrn _cmdline:word
pascal@19571 148 mov si,[_cmdline]
pascal@19571 149 mov di,8000h
pascal@19571 150 mov ch,10h ; 4k
pascal@19571 151 rep
pascal@19571 152 movsb
pascal@19636 153 cmp al,cl ; load high ?
pascal@20473 154 ifdef noelks
pascal@19905 155 jne @@isbzimage
pascal@20473 156 else
pascal@20473 157 jne @@isbzimagez
pascal@20473 158 endif
pascal@19637 159 ifdef NO386
pascal@19637 160 add bh,9
pascal@19637 161 push bx ; topseg()+0x0900
pascal@19637 162 else
pascal@19905 163 push 9800h+(4096/16) ; 4096 bytes for cmdline
pascal@19637 164 endif
pascal@19515 165 ; finish loading
pascal@19515 166 extrn @last_ditch$qv:near
pascal@19515 167 push cs
pascal@19515 168 call @last_ditch$qv
pascal@19899 169 mov ax,[word _imgs+2+2] ; get pm->fallback high word
pascal@19515 170 ; self move
pascal@19571 171 ;cld
pascal@19538 172 pop es ; min 2048 bytes for stack
pascal@19538 173 xor si,si ; A000 -9000 -0800(>movedend)
pascal@19515 174 xor di,di ; set ZF
pascal@19538 175 mov cx,offset movedend
pascal@19515 176 rep
pascal@19515 177 movsb
pascal@20473 178 push ax
pascal@19515 179 push es
pascal@20473 180 dos_shutdown ; clear bx
pascal@20475 181 call near @@isbzimage ; pop cs ; ds=es=ss
pascal@19538 182 ;in al,70h
pascal@19538 183 ;or al,80h ; disable NMI
pascal@19538 184 ;out 70h,al
pascal@20473 185 pop dx
pascal@19515 186 ; move zImage pm
pascal@19515 187 mov ax,8
pascal@20475 188 cmp dx,ax ; buf > 80000h ?
pascal@19905 189 ja @@bufhigh
pascal@20473 190 sub ax,dx
pascal@20475 191 inc ax ; up to 90000h-1
pascal@19905 192 @@bufhigh:
pascal@19515 193 push ax
pascal@20473 194 push bx ; size=up to 512k
pascal@20473 195 push dx ; src ofs= pm.fallback
pascal@20473 196 push bx
pascal@20473 197 push bx ; srcseg=0
pascal@19636 198 ifdef NO386
pascal@20473 199 inc bx
pascal@20473 200 push bx ; dst
pascal@20473 201 dec bx
pascal@19636 202 else
pascal@19636 203 push 1 ; dst
pascal@19636 204 endif
pascal@20473 205 push bx ; ofs=64k
pascal@19515 206 extrn _memcpy32:near
pascal@19515 207 call _memcpy32
pascal@19538 208 add sp,14
pascal@19515 209
pascal@19515 210 ifndef noelks
pascal@19515 211 ifndef NO386
pascal@19515 212 cmp [dword 1E6h],'SKLE'
pascal@20473 213 jne @@notelks
pascal@20473 214 @@isbzimagez:
pascal@20473 215 jne @@isbzimage
pascal@19515 216 else
pascal@19515 217 cmp [word 1E6h],'LE'
pascal@19905 218 jne @@notelks
pascal@20473 219 @@isbzimagez:
pascal@20473 220 jne @@isbzimage
pascal@19515 221 cmp [word 1E8h],'SK'
pascal@20473 222 jne @@notelks
pascal@19515 223 endif
pascal@20475 224 mov cx,100h ; DS=ES=SS=0100
pascal@20475 225 mov es,cx
pascal@20475 226 mov ch,05h ; 500h mini
pascal@19515 227 xor si,si
pascal@19515 228 xor di,di
pascal@19515 229 rep
pascal@19515 230 movsw
pascal@19515 231 push es
pascal@19515 232 pop ss
pascal@20475 233 ifdef NO386
pascal@20475 234 mov ax,120h ; CS=0120
pascal@20475 235 push ax
pascal@20475 236 else
pascal@20475 237 push 120h ; CS=0120
pascal@20475 238 endif
pascal@20473 239 push cx ; IP=0000
pascal@19905 240 @@notelks:
pascal@19515 241 endif
pascal@19905 242 @@isbzimage:
pascal@19515 243 push ss
pascal@19515 244 pop ds
pascal@20475 245 push ss
pascal@20475 246 pop es
pascal@19636 247 ifndef NO386
pascal@19515 248 push ss
pascal@19515 249 pop fs
pascal@19515 250 push ss
pascal@19515 251 pop gs
pascal@19636 252 endif
pascal@19515 253 assume nothing
pascal@19515 254 assume cs:DGROUP
pascal@19515 255 retf
pascal@19515 256
pascal@20473 257 step19code
pascal@19515 258 movedend:
pascal@19905 259 endp _boot_kernel
pascal@19515 260
pascal@19515 261 ends _TEXT
pascal@19515 262
pascal@19515 263 end
pascal@19515 264
pascal@19515 265 ;###### END OF FILE ############################################