28 lines
558 B
ArmAsm
28 lines
558 B
ArmAsm
.define Sar
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.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.sect .text
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! This subroutine performs the SAR instruction.
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! For details see rapport IR-81.
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Sar:
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jsr Aar ! get object address
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ldy NBYTES+1 ! the size of the object (highbyte)
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bne 2f
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ldy NBYTES ! the size of the object (lowbyte)
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cpy #1
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bne 1f ! object size is one byte
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jmp Sti1 ! put it in array
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1: cpy #2
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bne 1f ! object size is two bytes
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jmp Sti ! put it in array
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1: cpy #4
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bne 2f ! object size is fourbytes
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jmp Sdi ! put it in array
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2: jmp Stil ! put it in array
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