BASIC comparison sheet Special commands Page 33
Special commands and some remarks
Casio FX-730/770/780/785/795P MODE commands
Casio VX-4
Casio BASIC ROM OM-53B for PC-2000C/AI-1000
Sharp display routines
Sharp PC-1260/61/62 graphics
Sharp PC-E220/G8xx
See next page.
PEEK/POKE only work in RAM: &H1000..02FFF in segment 0 on machines without RAM extension.
MODE110 = CALL
The following information was posted in the french MySilicium forum:
The differences between PB-1000 BASIC and OM-53B BASIC for the PB-2000C/AI-1000:
CALL, TIME$ and DATE$ were removed. 6 commands were added, but 5 of them are hidden behind the SYSTEM command.
- RENUM: Well known.
- SYSTEM CALL: Identical to CALL on PB-1000.
- SYSTEM SET: Writes a sequence of key codes (00-99) into the key buffer.
- SYSTEM SW: Calls the RS232C settings menu similar to the VX-4 F.COM>Device>Switch menu.
- SYSTEM COPY: Copies a complete MD-100 disk to another disk.
- SYSTEM SUM: ROM card sum and xor test.
The following information was posted in the french MySilicium forum:
The display of the following Sharp PCs goes blank during a calculation:
1210, 1211, 1212, 1245, 1246, 1247, 1248, 1250, 1251, 1260, 1261, 1262, 1401, 1402, 1403
Workaround:
- 1245, 1250, 1251: CALL &11E0 (with WAIT 0) turns display on (with some stray pixels), CALL &11E5 turns it off.
- 1260, 1261, 1262: Display contents stays visible if followed by a ";".
- 1401, 1402: CALL &5A2 turns display on, CALL &59E turns it off. (cf. Le Sharpentier #9, page 30.)
- 1403: CALL &4B8 turns LCD on, CALL &4B4 turns it off.
- 1210, 1211, 1212: Impossible to turn on display. A hidden command # allows some graphics in the first 3 columns.
(See l'Ordinateur de Poche #9, page 63 and #13, page 50 for an example).
The following information is from the book: "System und Trickbuch für den SHARP PC 1260/61" by Bernd Saretz
The display is divided in four areas of 12x5x7 dots each:
Upper left: &2000..&203B (8192..8251)
Upper right: &2800..&283B (10240..10299)
Lower left: &2040..&207B (8256..8315)
Lower right: &2840..&287B (10304..10363)
The dots are set with POKE. Bit 0 is top, bit 6 is bottom.
Address &203D (8253) controls the indicators. Bit 3 selects Kanji mode and locks you out!
The display must be turned on by CALL &A907 (stays on after break!) or a small ML routine:
10 POKE 25000,2,1,229,164,55:CALL 25000:WAIT 0
On a 1262 the address 25000 might not be the best idea.
CALL has an additional parameter to call Software in other ROM banks which start at &HC000
CALL #5,&HC000 starts the built in Z80-Assembler, even on the G820 where this is officially not supported.
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