3194

F780

C9

7F

 

 

CMP

#$7F

;RUB

3195

F782

4C

2A

FF

 

JMP

PATC17

;NO ZEROS IN CASE OF PAPER TAPE

3196

F785

C9

0A

 

IN02A

CMP

#LF

 

3197

F787

F0

F1

 

 

BEQ

IN02

 

3198

F789

C9

0D

 

 

CMP

#CR

 

3199

F78B F0 1B

 

 

BEQ

IN03

 

3200

F78D C0 3C

 

 

CPY

#60

;DO NOT INCR Y IF 60

3201

F78F B0 08

 

 

BCS

IN03B

 

3202

F791

99

38

A4

 

STA

DIBUFF,Y

 

3203

F794

C8

 

 

 

INY

 

 

3204

F795

C0

3C

 

 

CPY

#60

 

3205

F797

D0

E1

 

 

BNE

IN02

;CONTIN , DISP WONT ALLOW > 60 CHR`

3206

F799

A0

3C

 

IN03B

LDY

#60

;SET Y TO MAX OF 60

3207

F79B A9 01

 

 

LDA

#$01

 

3208

F79D 0D 11 A4

 

ORA

PRIFLG

;DO NOT OUTPUT TO PRI ANY MORE

3209

F7A0 8D 11 A4

 

STA

PRIFLG

;OTHERWISE CLOBBERS THE BUFFER

3210

F7A3 8C 15 A4

 

STY

CURPO2

 

3211

F7A6 D0 D2

 

 

BNE

IN02

;GO BACK

3212

F7A8 84 EA

 

IN03

STY

LENGTH

 

3213

F7AA C0 00

 

 

CPY

#0

;FIRST CHAR?

3214

F7AC D0 17

 

 

BNE

IN05

 

3215

F7AE AD 19 A4

 

LDA

COUNT

;K OR I COMM FLG ?

3216

F7B1 D0 12

 

 

BNE

IN05

;BRANCH IF C COMMAND

3217

F7B3 20 24 EA

 

JSR

CRCK

;<CR> IF PRI PNTR DIFF FROM 0

3218

F7B6 20 03 FF

 

JSR

PATC13

;TURN ON TAPES & SET DEFAULT DEV

3219

F7B9 20 27 F7

IN03A

JSR

PLNE

;DISPLAY NEXT LINE DOWN

3220

F7BC 20 09 F7

 

JSR

UPNO

;PRINT "END" IF BOTTOM

3221

F7BF 20 D8 F6

 

JSR

DNNO

 

3222

F7C2 4C 78 FA

 

JMP

ERR0

 

3223

F7C5 20 3F F9

IN05

JSR

REPLAC

;INSERT THE LINE

3224

F7C8 4C 24 EA

 

JMP CRCK

;<CR> IF PRI PTR NOT 0

3225

F7CB

 

 

 

 

 

 

 

3226

F7CB

 

 

 

;***** R COMMAND-READ LINE *****

3227

F7CB

 

 

 

;READ TEXT

FROM ANY INPUT DEVICE UNTIL

3228

F7CB

 

 

 

;TWO CONSECUTIVE <CR> ARE ENCOUNTER.

3229

F7CB 20 48 E8

INPU

JSR

WHEREI

 

3230

F7CE AC 12 A4

 

LDY

INFLG

;IF TAPE DO NOT ERRASE BUFFER

3231

F7D1 C0 54

 

 

CPY

#'T'

 

3232

F7D3 F0 03

 

 

BEQ

INPU1

 

3233

F7D5 20 13 EA

 

JSR

CRLOW

 

3234

F7D8 20 6D F7

INPU1

JSR

INL

 

3235

F7DB 20 09 F7

 

JSR

UPNO

;NEXT LINE

3236

F7DE 4C D8 F7

 

JMP

INPU1

 

3237

F7E1

 

 

 

 

 

 

 

3238

F7E1

 

 

 

;***** L COMMAND-LIST LINES *****

3239

F7E1

 

 

 

;PRINT

FROM HERE N LINES TO ACTIVE OUTPUT DEV

3240

F7E1 20 37 E8

LST

JSR PSL1

;PRINT "/"

3241

F7E4 20 85 E7

 

JSR GCNT

;GET LINES COUNT

3242

F7E7 20 13 EA

 

JSR

CRLOW

 

3243

F7EA 20 71 E8

 

JSR

WHEREO

;WHERE TO

3244

F7ED 4C F8 F7

 

JMP

LST02

;ONE MORE LINE

3245

F7F0 20 07 E9

LST01

JSR

RCHEK

 

3246

F7F3 20 90 E7

 

JSR

DONE

 

3247

F7F6 F0 0B

 

 

BEQ

LST3

 

3248

F7F8 20 27 F7

LST02

JSR

PLNE

 

3249

F7FB 20 09 F7

 

JSR

UPNO

;NEXT LINE

3250

F7FE 20 E9 F8

 

JSR

ATBOT

 

3251

F801

90

ED

 

 

BCC

LST01

;NO

3252

F803

20

3F

F7

LST3

JSR

P03

;ONE MORE CRLF FOR TAPE

3253

F806

20

0D

FF

 

JSR

PATC14

;CLOSE TAPE IF NEEDED

3254

F809

4C

5C

FA

 

JMP

ENDERR

 

3255

F80C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 193
Image 193
Apple II manual Rub

II specifications

The Apple II, launched in April 1977, was one of the first highly successful mass-produced microcomputer products. It marked a significant leap in personal computing, setting standards for future developments in the industry. Created by Steve Wozniak and Steve Jobs, the Apple II differentiated itself with its user-friendly design, appealing aesthetics, and robust capabilities.

One of the standout features of the Apple II was its open architecture, which allowed users to expand and enhance the computer's functionality. This design enabled hundreds of third-party hardware and software developers to contribute to its ecosystem, resulting in an array of peripherals, including printers, modems, and storage devices. The Apple II utilized a MOS Technology 6502 microprocessor running at a clock speed of 1 MHz. Initially equipped with 4 KB of RAM, the machine could be expanded to 48 KB, accommodating more complex applications and programs.

The Apple II was also notable for its colorful graphics. It was one of the first computers to support color display, offering a 6-color palette with a resolution of 280x192 pixels in 16 colors when using its Color Graphics Card. This feature significantly enhanced the visual appeal of games and educational software developed for the platform, making computing more accessible and entertaining for various audiences.

Apple's commitment to user experience was evident in the design of the machine. It featured an integrated keyboard and a plastic case, which was both durable and visually appealing. The self-contained design included drive bays for floppy disk drives, allowing for quicker data access than traditional tape drives. It also supported audio output, enabling sound effects and music, a novelty at the time.

The introduction of the Apple DOS operating system further underscored the machine's capabilities. DOS streamlined file management and made it easier for users to navigate and manage their data. The combination of hardware and software positioned the Apple II as an educational tool and a gaming platform, fostering a vibrant software ecosystem.

The Apple II family continued to evolve, with variations like the Apple II+, IIe, and IIgs being introduced over the years. These iterations brought enhancements in memory, processing power, and graphics capabilities. The legacy of the Apple II endures, not only as a foundational product in personal computing but also as a symbol of innovation that paved the way for future advancements in technology. Its impact is still felt today, as it inspired countless developers and shaped the trajectory of the computer industry.