25 lines
306 B
ArmAsm
25 lines
306 B
ArmAsm
#include "syscall.h"
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DEFINE(_brk)
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cmpl 4(ap),$endbss
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bgeq Iok
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movl $endbss,4(ap)
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Iok:
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chmk $17
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bcs Ierr
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movl 4(ap),.limhp
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clrl r0
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ret
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Ierr:
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jmp cerror
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DEFINE(_sbrk)
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addl3 .limhp,4(ap),-(sp)
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bcs Ierr
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pushl $1
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movl ap,r3
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movl sp,ap
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chmk $17
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bcs Ierr
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movl .limhp,r0
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addl2 4(r3),.limhp
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ret
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