1990-01-19 16:25:54 +00:00
|
|
|
#include "syscall.h"
|
|
|
|
|
.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text
|
|
|
|
|
.define __sbrk,__brk
|
|
|
|
|
__sbrk:
|
|
|
|
|
move.l (4,sp),d0
|
|
|
|
|
add.l #3,d0
|
|
|
|
|
move.l #~3,d1
|
|
|
|
|
and.l d1,d0
|
|
|
|
|
move.l d0,a0
|
1990-01-22 14:25:10 +00:00
|
|
|
move.l (.limhp),d0
|
1990-01-19 16:25:54 +00:00
|
|
|
add.l #3,d0
|
|
|
|
|
and.l d1,d0
|
1990-01-22 14:25:10 +00:00
|
|
|
move.l d0,(.limhp)
|
1990-01-19 16:25:54 +00:00
|
|
|
add.l d0,a0
|
|
|
|
|
move.l a0,(4,sp)
|
|
|
|
|
pea (17) ! not SYS_sbrk
|
|
|
|
|
trap #0
|
|
|
|
|
bcs 1f
|
1990-01-22 14:25:10 +00:00
|
|
|
move.l (.limhp),d0
|
|
|
|
|
move.l (4,sp),(.limhp)
|
1990-01-19 16:25:54 +00:00
|
|
|
rts
|
|
|
|
|
1:
|
|
|
|
|
jmp (cerror)
|
|
|
|
|
|
|
|
|
|
__brk:
|
|
|
|
|
move.l (4,sp),d0
|
|
|
|
|
add.l #3,d0
|
|
|
|
|
move.l #~3,d1
|
|
|
|
|
and.l d1,d0
|
|
|
|
|
move.l d0,(4,sp)
|
|
|
|
|
pea (17)
|
|
|
|
|
trap #0
|
|
|
|
|
bcs 1f
|
1990-01-22 14:25:10 +00:00
|
|
|
move.l (4,sp),(.limhp)
|
1990-01-19 16:25:54 +00:00
|
|
|
clr.l d0
|
|
|
|
|
rts
|
|
|
|
|
1:
|
|
|
|
|
jmp (cerror)
|
