29 lines
330 B
ArmAsm
29 lines
330 B
ArmAsm
#include "syscall.h"
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.globl _end
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DEFINE(_brk)
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cmpl 4(ap),min
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bgeq ok
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movl min,4(ap)
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ok:
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chmk $17
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bcs err
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movl 4(ap),cur
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clrl r0
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ret
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err:
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jmp cerror
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DEFINE(_sbrk)
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addl3 cur,4(ap),-(sp)
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bcs err
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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 err
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movl cur,r0
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addl2 4(r3),cur
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ret
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.data
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min: .long _end
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cur: .long _end
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