ack/mach/z8000/libem/csb.s

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ArmAsm
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1985-01-08 11:48:43 +00:00
.define csb
!R1 contains address of jump table
!R2 contains case index
csb:
ld R3, 0(R1) !default pointer
ld R0, 2(R1) !number of entries
test R0
jr EQ, 1f
3: inc R1, $4
cp R2, 0(R1)
jr EQ, 2f
djnz R0, 3b
1: ld R1, R3 !default pointer
jr 4f
2: ld R1, 2(R1)
4: test R1
jr EQ, 5f
jp 0(R1)
5: push *RR14, $ECASE
jr fatal