Outcks LDA, OUTCK1 PHA | Apple II guide

0852	E4EE 20 BA E9					JSR	SEMI	;OUTPUT ';'
0853	E4F1 A2 02					LDX	#2
0854	E4F3 A9 00					LDA	#0	;OUTPUT # OF BYTES (0-LAST RECORD)
0855	E4F5 20 3B E5					JSR	OUTCK1
0856	E4F8 AD 07 01				DU10A	LDA	S2+1	;OUTPUT RECORD COUNT
0857	E4FB 20 3B E5					JSR	OUTCK1	;CHECKCUM IS THE SAME
0858	E4FE AD 06 01					LDA	S2
0859	E501	20	3B	E5		JSR	OUTCK1
0860	E504	CA				DEX
0861	E505	D0	F1			BNE	DU10A
0862	E507	20	F0	E9		JSR	CRLF
0863	E50A				;CLOSE TAPE BLOCK IF ACTIVE
0864	E50A AD 13 A4				DU11	LDA	OUTFLG
0865	E50D C9 54					CMP	#'T'
0866	E50F D0 0F					BNE	DU13	;NO ,BRANCH
0867	E511	AD 37 A4			DU12	LDA	TAPTR2	;TAP OUTPUT BUFF PTR
0868	E514	C9	01			CMP	#1	;BECAUSE FIRST ONE IS BLK CNT
0869	E516	F0	08			BEQ	DU13	;NO DATA TO WRITE
0870	E518	A9	00			LDA	#0	;FILL REST BUFF ZEROS
0871	E51A 20 8B F1					JSR	TOBYTE	;OUTPUT TO BUFF
0872	E51D 4C 11 E5					JMP	DU12	;FINISH THIS BLOCK
0873	E520	20	13	EA	DU13	JSR	CRLOW
0874	E523	18				CLC		;ENABLE INTERR
0875	E524	A9	00			LDA	#T1I	;T1 FROM FREE RUNNING TO 1 SHOT
0876	E526	8D	0B	A8		STA	ACR
0877	E529	A9	34		DU14	LDA	#$34	;SET BOTH TAPES ON
0878	E52B 8D 00 A8					STA	DRB
0879	E52E 4C FE E8					JMP	LL
0880	E531
0881	E531				;GET CHAR SPECIFIED BY START ADDR (S1)
0882	E531	A9	1A		OUTCKS LDA		#S1
0883	E533	A0	00			LDY	#0
0884	E535	20	58	EB		JSR	LDAY
0885	E538
0886	E538				;ADD TO CHECKSUM AND PRINT
0887	E538	20	4E	E5	OUTCK	JSR CHEKA		;CHCKSUM
0888	E53B 48				OUTCK1 PHA
0889	E53C AD 13 A4					LDA OUTFLG		;IF TAPE DO NOT CNVRT
0890	E53F C9 54					CMP #'T'		;TO TWO ASCII CHRS
0891	E541	D0	04			BNE	OUTCK2
0892	E543	68				PLA
0893	E544	4C	8B	F1		JMP TOBYTE		;OUTPUT TO TAP BUFF
0894	E547	68			OUTCK2 PLA
0895	E548	4C	46	EA		JMP NUMA		;TWO ASCII REPRE
0896	E54B
0897	E54B 20 FD E3				CHEKAR JSR RBYTE			;TWO ASCII CHR---> 1 BYTE
0898	E54E 48				CHEKA	PHA		;ADD TO CHECKSUM
0899	E54F 18					CLC
0900	E550	6D	1E	A4		ADC	CKSUM
0901	E553	8D	1E	A4		STA	CKSUM
0902	E556	90	03			BCC	*+5
0903	E558	EE 1F A4				INC	CKSUM+1
0904	E55B 68					PLA
0905	E55C 60					RTS
0906	E55D
0907	E55D				;ADD ONE TO START ADDR (S1)
0908	E55D EE 1A A4				ADDS1	INC	S1
0909	E560	D0	03			BNE	ADD1
0910	E562	EE 1B A4				INC	S1+1
0911	E565	60			ADD1	RTS
0912	E566
0913	E566	EE 06 01			INCS2	INC	S2	;INCR VERTICAL COUNT

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.

Apple II manual Outcks LDA, OUTCK1 PHA

Models: II

CMP

CMP

OUTCKS LDA

OUTCK1 PHA

ADC

II specifications