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SETBC, SETBNC, SETBZ, SETBNZ instructions — Parallax Forums

SETBC, SETBNC, SETBZ, SETBNZ instructions

pedwardpedward Posts: 1,642
edited 2013-03-22 02:52 in Propeller 2
I was looking at the P2 docs and saw these instructions. I wonder why they exist?

SETBC d.1
MUXC d, #1

SETBNC d.5
MUXNC d, #32

SETBZ d.1
MUXZ d, #1

SETBNZ d.5
MUXNZ d, #32

These instructions could actually be generated by the assembler transparently by using the more powerful MUX masks.

Comments

  • AribaAriba Posts: 2,682
    edited 2013-03-22 02:52
    This works for bits 0..8 but for higher bits you need a bitmask in a long for the MUX instructions.

    Andy
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