Difference between revisions of "83Plus:Ports:0D"
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| − | [[Category:83Plus:Ports:By_Address|0D - Link Assist Output Buffer]] | + | [[Category:83Plus:Ports:By_Address|0D - Link Assist Output Buffer]] [[Category:83Plus:Ports:By_Name|Link Assist Output Buffer]] |
| − | [[Category:83Plus:Ports:By_Name|Link Assist Output Buffer]] | + | |
== Synopsis == | == Synopsis == | ||
'''Port Number:''' 0Dh | '''Port Number:''' 0Dh | ||
Revision as of 21:18, 29 March 2005
Contents
Synopsis
Port Number: 0Dh
Function: Link Assist Output Buffer
This port allows you to write data to be sent by the link assist.
Read Values
None
Write Values
- [00h - FFh]: The byte to be written
Comments
This port only exists on the 83+ SE and the 84+.
Check port 9 before you write this port, to be sure that the assist is ready.
Example
SendByteSE: ld b,a in a,(4) and 8 jr z,LinkError in a,(9) bit 5,a jr nz,SendByteSE_OK and 58h jr z,SendByteSE jr LinkError SendByteSE_OK: ld a,b out (0Dh),a or a ret
Credits and Contributions
- Michael Vincent: Original documentation of the link assist
