Tuesday, 14 February 2017

15. Subtract From Zero Extended XO-form (subfze/SUBFZE)


subfze RT,RA (OE=0 Rc=0)
subfze. RT,RA (OE=0 Rc=1)
subfzeo RT,RA (OE=1 Rc=0)
subfzeo. RT,RA (OE=1 Rc=1)

31 RT RA /// OE 200 Rc
0  6  11 16  21 22  31

RT  ¬(RA) + CA
The sum ¬(RA) + CA is placed into register RT.
Special Registers Altered:
CA CA32
CR0 (if Rc=1)
SO OV OV32 (if OE=1)

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