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sbrk.S revision 1.3 
      1  1.3       ws /*	$NetBSD: sbrk.S,v 1.3 1998/05/25 15:35:06 ws Exp $	*/
      2  1.1  thorpej 
      3  1.1  thorpej #include "SYS.h"
      4  1.1  thorpej 
      5  1.3       ws 	.globl	_C_LABEL(end)
      6  1.3       ws 	.globl	_ASM_LABEL(curbrk)
      7  1.1  thorpej 
      8  1.1  thorpej 	.data
      9  1.3       ws _ASM_LABEL(curbrk):
     10  1.3       ws 	.long	_C_LABEL(end)
     11  1.1  thorpej 	.text
     12  1.1  thorpej 
     13  1.1  thorpej ENTRY(sbrk)
     14  1.1  thorpej #ifdef PIC
     15  1.1  thorpej 	 XXX
     16  1.1  thorpej #else
     17  1.3       ws 	lis	5,_ASM_LABEL(curbrk)@ha
     18  1.3       ws 	lwz	6,_ASM_LABEL(curbrk)@l(5)	# r6 = old break
     19  1.1  thorpej 	add	3,3,6
     20  1.1  thorpej 	mr	7,3				# r7 = new break
     21  1.1  thorpej 	li	0,SYS_break
     22  1.1  thorpej 	sc					# break(new_break)
     23  1.1  thorpej 	bso	1f
     24  1.1  thorpej 	mr	3,6				# set return value
     25  1.3       ws 	stw	7,_ASM_LABEL(curbrk)@l(5)	# record new break
     26  1.1  thorpej 	blr
     27  1.1  thorpej 1:
     28  1.3       ws 	b	_ASM_LABEL(cerror)
     29  1.1  thorpej #endif
     30