Sample Programs Appendix C
GPIB-1014 User Manual C-8 © National Instruments Corporation
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| * * * * * * * * * * * * * * * * * * * *
| * REMOTE ENABLE - REN *
| * * * * * * * * * * * * * * * * * * * *
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| Summary:
| - Set or clear GPIB Remote Enable signal
|
| Assumptions on entry:
| - User specified sre is non-zero if REN is to be
| asserted and is zero if REN is to be unasserted
| - GPIB-1014 is System Controller and Active
| Controller
|
| Actions:
| - Check sre flag.
| if non-zero (true) send REN else send clear REN
|
| Status on return:
| - REN is asserted or unasserted
|
68000 Code | Comments
--------------------------------------------------------------------------------------------------------------------------------------------
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REN: tstb sre | Turn on the REN signal if sre is non-zero
beq REN1 |
|
movb #SREN,AUXMR |
bra REN2 |
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REN1: movb #CREN,AUXMR | Else, turn off REN if sre is zero
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REN2: rts |
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