4097

FF14 4C 0A E5

 

JMP

DU11

 

4098

FF17

 

 

 

 

4099

FF17 20 F0 E9

PATC15 JSR CRLF

;DECODE COMMAND

4100

FF1A 8A

 

TXA

 

;SAVE INDEX

4101

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ASL

A

 

4102

FF1C AA

 

TAX

 

 

4103

FF1D BD B8 FA

 

LDA JTBL,X

;PART OF ENTRY

4104

FF20 8D 1A A4

 

STA

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4105

FF23 60

 

RTS

 

 

4106

FF24

 

 

 

 

4107

FF24 20 DD E5

PATC16 JSR CGPC1

;ADDR TO PC

4108

FF27 4C AA FB

 

JMP STARTM

;BACK TO MNEMONIC START

4109

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4110

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PATC17 BEQ PAT17B

;RUB, SO READ ANOTHER

4111

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4112

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4113

FF30 4C 85 F7

 

JMP

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4114

FF33 20 93 E9

PAT17A JSR

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;SKIP ON ZEROS

4115

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;UNTILL RUB

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BNE

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4117

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PAT17B JMP IN02

;GO BACK

4118

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4119

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PATC18 JSR PATC12

;RESET PRIFLG

4120

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PHA

 

 

4121

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JSR TTYTST

;IF TTY JUST RTN

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BNE

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4123

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PLA

 

 

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RTS

 

 

4125

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PAT18A JSR

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;SET TO LOW SPEED

4126

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JSR

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;PRINT WHAT IS IN BUFFER

4127

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JSR

CLR

;CLR PRINTER BUFFER BY OUTPUTTING

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JSR

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;AN SPACE

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JSR

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;RTN ACC

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4132

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4134

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JSR

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4135

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JMP

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4136

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4137

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;END (DATA BYTES=0)

4138

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CLC

 

 

4139

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ADC

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4140

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DEX

 

 

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BNE

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4144

FF6C 4C 9E E6

 

JMP

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;PROCESS NEXT RCD

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4146

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4147

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PAT21

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4148

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PAT21A LDA

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4149

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4150

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JSR

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4151

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INY

 

 

4152

FF7D D0 F5

 

BNE

PAT21A

 

4153

FF7F 20 F0 E9

PAT21B JSR

CRLF

 

4154

FF82 20 F0 E9

 

JSR

CRLF

 

4155

FF85 4C 82 E1

 

JMP

START

 

4156

FF88

 

 

 

 

4157

FF88 2020524F434BPOMSG

.DB " ROCKWELL AIM 65"

4157

FF8E 57454C4C2041494D203635

 

 

 

 

 

 

 

 

Page 208
Image 208
Apple II manual PATC15 JSR Crlf Decode Command

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.