This is a simulator of CASIO's Pocket Computer PB-100.
It reproduces the unique BASIC of the PB-100 generation.
(Omitting the closing parentheses of calculation formula
using variables in the destination of GOTO etc. ..)
You can input and output BASIC text file by load and save menu.
And sound data compatible with cassette I / F is analog output by SAVE command.

＜Supported BASIC instraction＞
PRINT
INPUT
GOTO
GOSUB-RETURN
FOR-TO-STEP-NEXT
IF-THEN/IF-;
VAC
CLEAR/CLEAR A
RUN
LIST
END
KEY
CSR
DEFM
MID
VAL
SIN/COS/TAN/ASN/ACS/ATN
LOG/LN/EXP/SQR
ABS
SGN
INT
FRAC
RND
RAN#
STOP
SAVE
ON GOTO / ON GOSUB
READ DATA RESTORE
STR$
KEY$
MID$
BEEP
LET

＜Setting menu＞
・cpu clock emulate
　Putting some wait of execution and realize the operation close
　to the actual machine.
・memory unit
　Setting whether extended memory exists or not.
　It only changes the remaining memory display.
・UI design
　When set to 'PB-100 compatible' it will be like PB-100.
　When set to 'PB-100 custom' the 'F'key and '↑''↓'key is enabled.
・viblation
　It vibrates when the key is pressed.
・debug
　It displays debug messages and a frame of software keys.

＜About Special Symbols＞
In the input/output file PB special symbols are converted to escape characters.
Invalid except ASCII code.

\ ¥
LE(or <=) Less Equal
NE(or <>) Not Equal
GE(or >=) Greater Equal
LA Left Arrow
DA Down Arrow
RA Right Arrow
UA Up Arrow
PI PI
EX EXponent
CI CIrcle
SQ SQuare
TR TRiangle
CR CRoss
DV DiVide
DT DoT
DG DeGree
SP SPade
HT HearT
DI DIa
CL CLover
BX Box
SG SiGma
OM OMega
MU MU

＜Other＞
Spaces between instructions and parameters can be omitted.
(ex.)
PRINT CSR1;"ABC"
SINA
etc.

If you press the '←' key after manual calculation
the previous command will be displayed.
Step count calculation is not accurate. There are some errors with the actual machine.
Program trace execution is not implemented yet.
Moreover the program can not resume after interruption. It will only be finished.