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Use .limhp

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This commit is contained in:
ceriel 1990-01-22 14:08:16 +00:00
parent ee026dd2ab
commit 786665c582
3 changed files with 15 additions and 19 deletions
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15
mach/vax4/libbsd4_2/_brk.s
View file

@ -1,28 +1,25 @@
#include "syscall.h"
DEFINE(__brk)
cmpl 4(ap),Imin
cmpl 4(ap),$endbss
bgeq Iok
movl Imin,4(ap)
movl $endbss,4(ap)
Iok:
chmk $17
bcs Ierr
movl 4(ap),Icur
movl 4(ap),.limhp
clrl r0
ret
Ierr:
jmp cerror
DEFINE(__sbrk)
addl3 Icur,4(ap),-(sp)
addl3 .limhp,4(ap),-(sp)
bcs Ierr
pushl $1
movl ap,r3
movl sp,ap
chmk $17
bcs Ierr
movl Icur,r0
addl2 4(r3),Icur
movl .limhp,r0
addl2 4(r3),.limhp
ret
.sect .data
Imin: .data4 endbss
Icur: .data4 endbss

16
mach/vax4/libbsd4_2/brk.s
View file

@ -1,29 +1,25 @@
#include "syscall.h"
.extern _end
DEFINE(_brk)
cmpl 4(ap),Imin
cmpl 4(ap),$endbss
bgeq Iok
movl Imin,4(ap)
movl $endbss,4(ap)
Iok:
chmk $17
bcs Ierr
movl 4(ap),Icur
movl 4(ap),.limhp
clrl r0
ret
Ierr:
jmp cerror
DEFINE(_sbrk)
addl3 Icur,4(ap),-(sp)
addl3 .limhp,4(ap),-(sp)
bcs Ierr
pushl $1
movl ap,r3
movl sp,ap
chmk $17
bcs Ierr
movl Icur,r0
addl2 4(r3),Icur
movl .limhp,r0
addl2 4(r3),.limhp
ret
.sect .data
Imin: .data4 _end
Icur: .data4 _end

3
mach/vax4/libbsd4_2/head_em.s
View file

@ -6,6 +6,7 @@
.sect .text
.define hol0
.define .reghp
.define .limhp
.define .trppc
.define .trpim
@ -84,6 +85,8 @@ Im2:
.data4 0
.reghp:
.data4 _end
.limhp:
.data4 _end
hol0:
.space 8
.trppc: