F60D: 86 3D

181

FORM7

STX

A1H

;SAVE INDEX

F60F: CA

182

 

DEX

 

;DONE WITH FORMAT CHECK?

F610: 10 C9

183

 

BPL

FORM2

;NO.

F612: A5 44

184

 

LDA

FMT

;YES, PUT LENGTH

F614: 0A

185

 

ASL

 

;IN LOW BITS

F615: 0A

186

 

ASL

 

 

F616: 05 35

187

 

ORA

L

 

F618: C9 20

188

 

CMP

#$20

 

F61A: B0 06

189

 

BCS

FORM8

;ADD "$" IF NONZERO LENGTH

F61C: A6 35

190

 

LDX

L

;AND DON'T ALREADY HAVE IT

F61E: F0 02

191

 

BEQ

FORM8

 

F620: 09 80

192

 

ORA

#$80

 

F622: 85 44

193

FORM8

STA

FMT

 

F624: 84 34

194

 

STY

YSAV

 

F626: B9 00 02

195

 

LDA

IN,Y

;GET NEXT NONBLANK

F629: C9 BB

196

 

CMP

#$BB

;';' START OF COMMENT?

F62B: F0 04

197

 

BEQ

FORM9

;YES

F62D: C9 8D

198

 

CMP

#$8D

;CARRIAGE RETURN?

F62F: D0 80

199

 

BNE

ERR4

;NO, ERR.

F631: 4C 5C F5

200

FORM9

JMP

TRYNEXT

 

F634: B9 00 02

201

GETNSP

LDA

IN,Y

 

F637: C8

202

 

INY

 

 

F638: C9 A0

203

 

CMP

#$A0

;GET NEXT NON BLANK CHAR

F63A: F0 F8

204

 

BEQ

GETNSP

 

F63C: 60

205

 

RTS

 

 

 

206

 

ORG

$F666

 

F666: 4C 92 F5

207

MINIASM

JMP

RESETZ

 

Page 64
Image 64
Apple II manual FORM7 STX A1H Save Index

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.