29 lines
317 B
ArmAsm
29 lines
317 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
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.define _sbrk
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.sect .text
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_sbrk:
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push bp
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mov bp,sp
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mov ax,8(bp)
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or ax,ax
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jne 1f
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mov ax,(.limhp)
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pop bp
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ret
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1:
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mov bx,(.limhp)
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add ax,bx
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push ax
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call _brk
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or ax,ax
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jne 1f
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pop ax
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mov (.limhp),ax
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mov ax,bx
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pop bp
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ret
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1:
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pop ax
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mov ax,-1
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pop bp
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ret
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