Subject: [tw] Re: requesting help with Template tiddlers



hmm... probably with something like this: :)
\define registers(A:"." X:"." Y:"." N:"." V:"." Z:"." C:".")
Registers affected<br/>

|N ''$N$''|V ''$V$''|Z ''$Z$''|C ''$C$''|
|A ''$A$''|X ''$X$''|Y ''$Y$''||
\end
<<registers Z:"*"  >>
<<registers X:"*"  >>
<<registers X:"*"  >>
<<registers C:"*" X:"*" >>



On Saturday, August 12, 2017 at 9:51:42 PM UTC-4, Charlie Hitselberger wrote:A while back, I put together a tiddlywiki for a Forth language I'm writing as part of a retrocomputing project.  http://chitselb.com/files/tiddlypettil.html . This file is automatically generated each time I build the source, and most of the tiddlers are the Forth dictionary, with the tiddlywiki documentation for each forth word contained in its assembler source between "#if 0" / "#endif" to make the 6502 assembler ignore it.   In the "About PETTIL" tiddler, I used the expedient of writing.
For Primitives, it would be useful to have a CPU register diagram indication of which registers and flags (really just N, V, Z, and C) are affected, and I can do it using tables, but this afternoon I did not succeed at coming up with a scheme where I can pass in a parameter (e.g. "*----**" to mean only A, Z and C are modified by this primitive) and display it in a chart.  Here are a few designs, not sure which one I'll ...

wind up using yet.
Any help would be appreciated.Charlie
|''A*''&nbsp;&nbsp;&nbsp;X.&nbsp;&nbsp;&nbsp;Y.|^- altered<br/>* result<br/>. unchanged<br/> |
|''N -''&nbsp;&nbsp;&nbsp;V .&nbsp;&nbsp;&nbsp;''Z *''&nbsp;&nbsp;&nbsp;C .|~|
|Z implies A=0<br/>!Z implies A!=0 |<|


|N ''-''|V .|Z ''*''|C .|
|A ''-''|X .|Y .||

|^A|^''-'' |^N|^''-'' |
|^X||^V||
|^Y||^Z|^''*'' |
|>||^C||
|altered|<|<| -|f
|useful|<|<| *|f
|unchanged|<|<| |f


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