This is a copy of PROMs that I had in my Poly88.
The Author is unknown. It is an adaptation of the
original Tiny Basic modified for the Poly88 S-100 system.
It is intended to run on the CPU card in the two
sockets next to the Poly88 monitor. The PROM type
is 2708. The one immediately left of the monitor
is in the file TB400.HEX. The next left socket is
for TB800.HEX. TBASIC.LST is a disassembly that
has comments added from a listing of Tiny Basic
found in one of the books.
 Tiny Basic on the Poly88, requires that there be
RAM starting at 2000H. This RAM is not the RAM that
is found on the CPU card. It is user supplied RAM.
A maximum of 8K is used for program space.
 To start Tiny Basic, one can enter control C
or use the monitor to start at 400H.
 Here is a list of the commands that I know of:
 LIST
 NEW
 RUN
 NEXT
 IF
 GOTO
 GOSUB
 RETURN
 REM
 FOR
 INPUT
 PRINT
 STOP
 RND
 ABS
 SIZE
 TO
 STEP
 0>=
 #   ( NOT = ) or field size for print
 >
 =
 <=
 <
 *
 +
 -
 /
,
;
 All math is integer. There variables are single letter.
There is one array called @. Example:  LET @(1) = 5
The command LET is understood so the sequence @(1)=5
is also valid. All commands can be abreviated. Example:
P.@(1) will print the value in the array location 1.
 This version had a way of connecting user functions
but I don't know how it was to be done. Maybe someone
with a little time can disassemble it and determine how
it is to be done.
Dwight