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Briel Computers Replica I, Руководство по установке и инструкция для пользователей, Страница: 32 / 33

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Replica 1 TE                                                                                                                                                                           Users Manual 

© Briel Computers 2007                                                      page 

32 

 
FFC1: 20 DC FF 

 

 

 

JSR PRBYTE 

Output it in hex format. 

FFC4: 86 2B   

XAMNEXT   

STX MODE   

0->MODE (XAM mode). 

FFC7: A5 24   

 

 

 

LDA XAML 

FFC8: C5 28   

 

 

 

CMP L 

 

Compare ‘examine index’ to hex data. 

FFCA:A5 25   

 

 

 

LDA XAMH 

FFCC:E5 29   

 

 

 

SBC H 

FFCE: B0 C1   

 

 

 

BCS TONEXTITEM Not less, so no more data to output. 

FFD0: E6 24   

 

 

 

INC XAML 

FFD2: D0 02   

 

 

 

BNE MOD8CHK 

Increment ‘examine index’. 

FFD4: E6 25   

 

 

 

INC XAMH 

FFD6: A5 24   

MOD8CHK   

LDA XAML   

Check low-order ‘examine index’ byte 

FFD8: 29 07   

 

 

 

AND #$07 

 

 For MOD 8=0 

FFDA:10 C8   

 

 

 

BPL NXTPRNT 

Always taken. 

FFDC:48 

 

PRBYTE 

 

PHA   

 

Save A for LSD. 

FFDD:4A 

 

 

 

 

LSR 

FFDE: 4A 

 

 

 

 

LSR 

FFDF: 4A 

 

 

 

 

LSR   

 

MSD to LSD position. 

FFE0: 4A 

 

 

 

 

LSR 

FFE1: 20 E5 FF 

 

 

 

JSR PRHEX   

Output hex digit. 

FFE4: 68 

 

 

 

 

PLA   

 

Restore A. 

FFE5: 29 0F   

PRHEX 

 

AND #$0F 

 

Mask LSD for hex print. 

FFE7: 09 B0   

 

 

 

ORA #$B0 

 

Add “0”. 

FFE9: C9 BA  

 

 

 

CMP #$BA   

Digit? 

FFEB: 90 02   

 

 

 

BCC ECHO   

Yes, output it. 

FFED: 69 06   

 

 

 

ADC #$06 

 

Add offset for letter. 

FFEF: 2C 12 D0 

ECHO  

 

BIT DSP 

 

DA bit (B7) cleared yet? 

FFF2: 30 FB   

 

 

 

BMI ECHO   

No, wait for display. 

FFF4: 8D 12 D0 

 

 

 

STA DSP 

 

Output character. Sets DA. 

FFF7: 60 

 

 

 

 

RTS   

 

Return. 

FFF8: 00 00 (unused) 
FFFA: 00 0F (NMI) 
FFFC: 00 FF (RESET) 
FFFE: 00 00 (IRQ) 
 

HARDWARE NOTES 

 
 

 

Page 0 Variables 

 

 

 

 

 

 

Other Variables 

 

 

 

 

 

XAML 

24 

 

 

 

 

 

 

IN 

 

200-27F 

 

 

XAMH 

25 

 

 

 

 

 

 

KBD   

D010 

 

 

STL   

26 

 

 

 

 

 

 

KBD CR 

D011 

 

 

STH   

27 

 

 

 

 

 

 

DSP   

D012 

 

 

L 

 

28 

 

 

 

 

 

 

DSP CR 

D013 

 

 

H 

 

29 

 

 

YSAV  

2A 

 

 

MODE 

2B 

 

 

Содержание Replica I

Страница 1: ...and Users Manual Setup and Users Manual Setup and Users Manual Setup and Users Manual MARCH 2009 TE EDITION Briel Computers Briel Computers Briel Computers Briel Computers 5392 Cornell Blvd North Ridg...

Страница 2: ...North Ridgeville OH 44039 USA Copyright 2009 Briel Computers All rights reserved Printed in the United States of America Except as permitted under the Copyright Act of 1976 no part of this publicatio...

Страница 3: ...t people about how Woz and Jobs started Apple Computers from their garage I had to read more I quickly learned that only about 50 Apple 1 s remained in existence from about 200 boards and they were hi...

Страница 4: ...of him the replica 1 was pulled off the shelf and completed I started from scratch and created a breadboard version of the replica 1 This time it worked Sort of Well the I O chip the 6821 was sending...

Страница 5: ...roducing the replica 1 Chapter 3 Unpacking and Setting Up Chapter 4 Assembling Kit Version Chapter 5 Programming the replica 1 Chapter 6 Using The Serial Interface Chapter 7 Using the Krusader Assembl...

Страница 6: ...ately wanted to make more to sell Figure 1 Actual Apple 1 Computer In April 1976 Steve Jobs and Steve Wozniak decided to start Apple Computer Company It was based on a computer design that Wozniak had...

Страница 7: ...eased and that gave the Apple 1 a high level language for people to program in This BAIC was not only written for the Apple 1 but it was also written for the Apple II at the same time As a matter of f...

Страница 8: ...r wall wart power supply Other features include a built in serial port that intercepts the keyboard and video signals so software drivers are not required A PS 2 keyboard port is onboard for those who...

Страница 9: ...and the replica 1 follows in its path While it s true that the replica 1 TE board contains more IC s than the original replica 1 the added features give the user flexibility that wasn t available bef...

Страница 10: ...o metal objects can touch the circuit board or damage could result Next you need to choose what type of power supply you are going to use There are three ways you can power your replica 1 TE ATX power...

Страница 11: ...ca 1 is designed for NTSC composite video PAL will work but will be slightly reduced in size on the screen Figure 6 Video connector Next you need to attach a keyboard You have two choices for keyboard...

Страница 12: ...e the cursor at the top of the screen or the LED is not lit turn the replica 1 off and recheck your work Press RESET on the board and your replica will respond with a backslash and the cursor will dro...

Страница 13: ...assemble your replica 1 Kit contents All kits have been carefully assembled to insure that no parts are missing however you should check the inventory to make sure you have everything If you find any...

Страница 14: ...r 1 40 pin 100 expansion header 1 44 pin 156 Apple 1 style slot Switches QTY Type 2 PCB board mount mini momentary push button 1 PCB board mount toggle DPDT switch Resistors QTY Size ID 9 3 3K R1 R8 1...

Страница 15: ...ifying resistors In previous revisions of the replica 1 kits all parts were labeled in an effort to make it easier on the kit builder Now the manual is being expanded to help newcomers to kits learn t...

Страница 16: ...umbers are actual numbers and the 3rd number is the multiplier code So 10 X 4 is 100 000 and the value is in pico Farads pF Converting it to a proper numbering format gives us the value 1uF To make th...

Страница 17: ...nother to hold the capacitor in place so you can flip the board over Solder and cut the extra lead length off Step 6 Install the LED As described earlier the longer lead is the Install the LED all the...

Страница 18: ...it properly Test pin 14 and pin 7 on the 74LS00 74LS04 to make sure you are getting 5V Check pin 8 and 16 on 74LS138 for 5V Once you are satisfied that the power is being distributed correctly power o...

Страница 19: ...Replica 1 TE Users Manual Briel Computers 2007 page 19 Use this page to document any notes needed for assembly...

Страница 20: ...kslash You are now in the Woz monitor There are three basic functions to the Woz monitor First you can examine a range of memory or just one location To examine one location of memory just type in the...

Страница 21: ...splay 8 locations of memory across because you only asked for two Once you have entered your program into memory you can start your program by entering the memory location that it starts at followed b...

Страница 22: ...out HELLO WORLD onto the display and then it will return to the prompt You can view your program by typing in LIST To get started programming in BASIC read the BASIC manual There are many example pro...

Страница 23: ...ing up Hyper Terminal Start a new session of Hyper Terminal and select a name for your session Figure 11 Setting up a new connection Click on OK next select which COM port you are connected to and sel...

Страница 24: ...ngs tab at the top and then select the ASCII setup button Figure 14 ASCII settings for COM port Set up your settings exactly as shown in the Figure 13 Select OK to close the ASCII Setup screen Select...

Страница 25: ...SIC file to enter BASIC by typing E000R followed by Enter before sending the file To receive a file is just as easy Once again click on the Transfer tab but this time select Capture Text from the drop...

Страница 26: ...he first line Let s enter the program listed in the Krusader as an example program 000 is now displayed Press space bar to skip the first field used for naming code blocks The assembler tabs over to t...

Страница 27: ...properly Reset works but cursor stays on same line as backslash This is an indication that communication between the 6821 and the 6502 is not working correctly or RAM is not functioning properly If bu...

Страница 28: ...nual Briel Computers 2007 page 28 Appendix A ASCII Keyboard pin out Figure 20 replica I keyboard port from the 16 pin DIP connector Pin 1 is 5V Figure 21 Apple 1 keyboard port from the 16 pin DIP conn...

Страница 29: ...Replica 1 TE Users Manual Briel Computers 2007 page 29 Appendix B Replica 1 Memory Map...

Страница 30: ...t index FF27 30 F6 BMI GETLINE Beyond start of line reinitialize FF29 AD 11 D0 NEXTCHAR LDA KBD CR Key ready FF2C 10 FB BPL NEXTCHAR Loop until ready FF2E AD 10 D0 LDA KBD Load character B7 should be...

Страница 31: ...8 LDA L LSD s of hex data FF89 81 26 STA STL X Store at current store index FF8B E6 26 INC STL Increment store index FF8D D0 B5 BNE NEXTITEM Get next item no carry FF8F E6 27 INC STH Add carry to stor...

Страница 32: ...ways taken FFDC 48 PRBYTE PHA Save A for LSD FFDD 4A LSR FFDE 4A LSR FFDF 4A LSR MSD to LSD position FFE0 4A LSR FFE1 20 E5 FF JSR PRHEX Output hex digit FFE4 68 PLA Restore A FFE5 29 0F PRHEX AND 0F...

Страница 33: ...accident abuse or misapplication of the product shall be assumed by the customer and the Briel Computers shall assume no liability as a consequence of such events under the terms of this warranty Whil...

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