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FIND2.DOC
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2000-06-30
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FIND2.COM DOCUMENTATION
Find2 is a public domain utility for the PC-8401A
computer that intercepts the LST: device. If a caret
(^) is sent to the BDOS LST: device followed immediately
by a left square bracket ([), these two characters are
replaced by the single ASCII ESC character.
This program was written in response to the condition of
WordStar-to-go (in the PC-8401A) causing the imbedded ESC
character to be printed out as a caret and a left bracket
(^[) instead of the ASCII ESC. PC-8401A users that have
Non-NEC printers that utilize the ESC code for special
printer effects could not obtain the full use of their
printer without a LST: filter such as FIND2. ESC can now
be entered into WS by typing in ^[ (as well as CTRL-P ESC.)
Be sure to set the IPL to FIND2 once it is loaded in your
PC-8401A, becuase power-off to power-on transitions cause
the BDOS table to be re-written, and therfore nullify this
program. The SetIPL can be invoked from the PC-8401A MENU
OPTION key - SHIFT-F.2<RETURN>. F.3 is the SetIPL option.
Press F.3 and respond to the "Type IPL command" prompt with
FIND2<RETURN>. To produce a single caret (^) upon printout,
specify caret followed by accent grave (^`.)
As an added bonus this program will allow all control
characters to be passed to the printer. Simply precede
the character you want turned into a control character
with a caret character. The following chart displays
character input and resulting character output in Hex-
adecimal, Decimal and ASCII control-code names:
Input Hex Decimal ASCII | Input Hex Decimal ASCII
^@ 00 00 Nul | ^P 10 16 Dle
^A 01 01 Soh | ^Q 11 17 Dc1
^B 02 02 Stx | ^R 12 18 Dc2
^C 03 03 Etx | ^S 13 19 Dc3
^D 04 04 Eot | ^T 14 20 Dc4
^E 05 05 Enq | ^U 15 21 Nak
^F 06 06 Ack | ^V 16 22 Syn
^G 07 07 Bel | ^W 17 23 Etb
^H 08 08 Bs | ^X 18 24 Can
^I 09 09 Ht | ^Y 19 25 Em
^J 0A 10 Lf | ^Z 1A 26 Sub
^K 0B 11 Vt | ^[ 1B 27 Esc
^L 0C 12 Ff | ^\ 1C 28 Fs
^M 0D 13 Cr | ^] 1D 29 Gs
^N 0E 14 So | ^^ 1E 30 Rs
^O 0F 15 Si | ^_ 1F 31 Us
Input:
Caret Space(^ ) through Caret Question Mark (^?) and then
Caret Acent Grave (^`) through Caret Tilde (^~) on the ASCII
chart are undefined and will result in a printable caret (^)
being produced only.
Example use in WS-to-go:
My printer requires an ESC Q to enter Condensed character printing
mode, an ESC N to return to normal Pica mode, a 0E hexadecimal
to enter Enlarged character printing mode and a 15 decimal to return
to normal sized printing. I can use the following:
^[QThis prints condensed characters ^[NNow they are pica sized.
^NThese pica characters will be enlarged ^OThese will be normal sized.
^ ^!^"^#^$^%^&^'^(^)^*^+^,^-^.^/^0^1^2^3^4^5^6^7^8^9^:^;^<^=^>^?
The above line produces 32 caret characters only.
^`^a^b^c^d^e^f^g^h^i^j^k^l^m^n^o^p^q^r^s^t^u^v^w^x^y^z^{^|^}^~
The above line produces 31 caret characters only.
This produces a backspace (control-h) such as to accent a vowel :
e^H'
(A printer such as the PC-8023 must be in incremental rather than
logic seeking mode to print a literal backspace.)
FILE END.