Sharp PC-1403H BASIC programmable calculator

Description

Performance index

This is the listing for calculating the performance index I. Total number of operations is 340, so I is 340/execution_time_in_seconds

10:FOR I=1 TO 10
20:FOR J=1 TO 10
30:X=J
40:X=X+1
50:X=X-.04567
60:X=X+70
70:X=X-69
80:X=X*7
90:X=X/11
100:NEXT J
110:X=LOG X
120:X=SIN X
130:X=SQRT X
140:X=SQRT X
150:NEXT I
160:PRINT X

And the printed result is 3.521579143E-01

PEEK & POKE

There is no mention of either PEEK or POKE in the Sharp manual, so here is a little explanation that might be helpful.
Since the PC-1403 is programmable in BASIC, PEEK and POKE can be used without a problem. The reason why Sharp has not mentioned it in their manual is unclear to me.
The implementation of the Sharp basic POKE is a little different from standard BASIC. The syntax:

POKE [address],[data 1],[data 2],...,[data n] (Normally this would be POKE [address],[data])

The difference is that on the PC-1403 you can use one POKE statement to fill multiple memory places. [address] indicates the address where [data 1] is stored. The [data 2] is stored in [address + 1] and so forth.
[address] can be a decimal or hexadecimal value. When using a hexadecimal value, prefix it with $

11 pin I/O connector

The 11-pin connector is a proprietary Sharp interface used to connect printers, cassette interfaces, and pocket floppy drives.
I have found 2 different pin-layouts on the net so far. Anyone who can tell me which is the right one?

pin 	name		description

1 	MT 2 		(not used on some models)
2 	Ground 	
3 	VCC 		Power
4 	Busy 	
5 	Data out 	Data out to printer (bit by bit)
6 	X out 		Data to the cassette recorder
7 	X in 		Data from the cassette recorder
8 	Data in 	Data in (bit by bit)
9 	ACK 		Enables CPU to read data bit by bit
10 	IO 2 		SEL 2 output from CPU
11 	IO 1 		SEL 1 output from CPU

pin 	name		description

1	nicht belegt	-   - 
2	+6V		VCC Spannungsversorgung - 
3	Masse GND	Masse in 
4	Leitung		Über F-Port: siehe Ports out 
5	Leitung		Über Adresse &3A00-FF: siehe Ports out 
6	LOAD		Wird von CLOAD benutzt, Abfrage über TEST 128 in 
7	SAVE		Wird von CSAVE benutzt, Steuerung über C-Port Bit 4,5 und 6 out 
8	Leitung		Über B-Port/Adresse &3A00-FF: siehe Ports in/out? 
9	Leitung		Über B-Port/Adresse &3C00-&3DFF: siehe Ports in/out 
10	Leitung		Über Adresse &3A00-FF: siehe Ports out 
11	Leitung		Über Adresse &3A00-FF: siehe Ports out 

Some helpfull links

Die Mayers - Heimseite
SHARP 1403 H - Tricks
Sharp Machine Language
Sharp PC-1403 Short Manual
Sharp Pocket Computers, Printers, Cables, Level Converters & Accessories
Sharp to RS-232 Serial Converter
Simons Pocket Computer Ressourcen
FAZ's Sharp PC 1403 Universe

Documents

A listing of all my Sharp documents.Derived from the PC-1401.

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