ack/mach/6500/libem/sar.s

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ArmAsm
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1984-12-17 11:03:13 +00:00
.define Sar
1987-01-30 18:41:42 +00:00
.sect .text
.sect .rom
.sect .data
.sect .bss
.sect .text
1984-12-17 11:03:13 +00:00
! This subroutine performs the SAR instruction.
! For details see rapport IR-81.
Sar:
jsr Aar ! get object address
ldy NBYTES+1 ! the size of the object (highbyte)
bne 2f
ldy NBYTES ! the size of the object (lowbyte)
cpy #1
bne 1f ! object size is one byte
jmp Sti1 ! put it in array
1: cpy #2
bne 1f ! object size is two bytes
jmp Sti ! put it in array
1: cpy #4
bne 2f ! object size is fourbytes
jmp Sdi ! put it in array
2: jmp Stil ! put it in array