13 Oct
2010
13 Oct
'10
10:15 p.m.
Bears a strong kinship IIRC, to the Beehive Super Bee.
--Chuck
I cant find a full spec for that terminal, just termcap entries, and a
field service manual for a "mini bee" that I think is related, but
neither seem to fit beyond potential use of "unit seperator (0x1F) as
a "new line" marker (although even that seems a bit iffy, since the
1F is followed by 0D 0A, i.e. CR/LF)
I realised I didn't post any actual 'escape' sequences, just uses of
control codes I haven't seen much use of before (US,GS, DC2, DC4).
The escape sequences I see are:
HEX ASCII
1) 1F 26 24 <x y z> : ESC & $ <xyz>
2) 1F 26 27 <x y z> : ESC & ' <xyz>
3) 1F 26 21 <x y z> : ESC & ! <xyz>
where 1,2,3 are all output at different times, with <x y z> being
values I haven't yet determined (they are register values i.e. set at
runtime, whereas the first 3 bytes are hardcoded)
13 Oct
13 Oct
10:38 p.m.
On 14 Oct 2010 at 16:15, Jonno Downes wrote:
The escape sequences I see are:
HEX ASCII
1) 1F 26 24 <x y z> : ESC & $ <xyz>
2) 1F 26 27 <x y z> : ESC & ' <xyz>
3) 1F 26 21 <x y z> : ESC & ! <xyz>
where 1,2,3 are all output at different times, with <x y z> being
values I haven't yet determined (they are register values i.e. set at
runtime, whereas the first 3 bytes are hardcoded)
Th 1F for a newline (it was that on the SuperBee which used an 8008;
the MiniBee is more of a "dumb" terminal) is what I mostly remember.
So the 1F above is used as the escape character and not hex 1B?
--Chuck
14 Oct
14 Oct
1:21 a.m.
I just took a look at the 4010 manual, and realised that US (0x1F)
selects 'alpha mode' and GS (0x1D) selects graphics mode.
The very first char output by the prom is US, followed by CR/LF then
'?' - it would make sense that the monitor sets alpha mode first.
this sequence also looks like it is using graph mode to position the
cursor, then flicks and to alpha mode to print a char, back to
graphics to move cursor back to where it was, and (over)prints a
different char. I haven't yet worked out whether 0x12 and 0x14 in
alpha mode displays a custom graphic, but might be some kind of
flashing cursor
1D Group Separator
37 7
7F DEL
20 SPACE
40 @
1F Unit Separator
12 DC2
1D Group Separator
37 7
7F DEL
20 SPACE
40 @
1F Unit Separator
14 DC4
not sure what these are though:
1F 26 24 <x y z> : ESC & $ <xyz>
1F 26 27 <x y z> : ESC & ' <xyz>
1F 26 21 <x y z> : ESC & ! <xyz>
5182
days inactive
5182
days old
2 comments
2 participants
participants (2)
-
cclist＠sydex.com -
jonnosan＠gmail.com