Ldbyte JSR Inbyte | Apple II specs

0675	84A1	20	D9	81	LDBYTE JSR		INBYTE
0676	84A4	4C	DD 82			JMP	CHKSAD
0677	84A7	C9	44		DEPZ	CMP	#'D'	;DEPOSIT, 0 PARM - USE (OLD)
0678	84A9	D0	03			BNE	MEMZ
0679	84AB 4C E1 84					JMP	NEWLN
0680	84AE C9 4D				MEMZ	CMP	#'M'	;MEM, 0 PARM - USE (OLD)
0681	84B0	D0	03			BNE	VERZ
0682	84B2	4C	17	85		JMP	NEWLOC
0683	84B5	C9	56		VERZ	CMP	#'V'	;VERIFY, 0 PARM - USE (OLD)
0684	84B7	D0	0D			BNE	L1ZB	; ... DO 8 BYTES (LIKE VER 1 PARM)
0685	84B9	A5	FE			LDA	$FE
0686	84BB 8D 4A A6					STA	P3L
0687	84BE A5 FF					LDA	$FF
0688	84C0	8D	4B	A6		STA	P3H
0689	84C3	4C	9A	85		JMP	VER1+4
0690	84C6	C9	12		L1ZB	CMP	#$12	;LOAD KIM, ZERO PARM
0691	84C8	D0	05			BNE	L2ZB
0692	84CA A0 00					LDY	#0	;MODE = KIM
0693	84CC 4C 78 8C				L1J	JMP	LENTRY	;GO TO CASSETTE ROUTINE
0694	84CF C9 13				L2ZB	CMP	#$13	;LOAD HS, ZERO PARM
0695	84D1	D0	04			BNE	EZPARM
0696	84D3	A0	80			LDY	#$80	;MODE - HS
0697	84D5	D0	F5			BNE	L1J	;(ALWAYS)
0698	84D7	6C	6D	A6	EZPARM JMP (URCVEC+1)			;ELSE UNREC COMMAND
0699	84DA				B1PARM =*
0700	84DA				;
0701	84DA				; 1 PARAMETER COMMAND EXEC BLOCKS
0702	84DA				;
0703	84DA C9 44				DEP1	CMP #'D'		;DEPOSIT, 1 PARM
0704	84DC D0 32					BNE	MEM1
0705	84DE 20 A7 82					JSR	P3SCR
0706	84E1	20	16	83	NEWLN	JSR	CRLFSZ
0707	84E4	A0	00			LDY	#0
0708	84E6	A2	08			LDX	#8
0709	84E8	20	42	83	DEPBYT JSR		SPACE
0710	84EB 20 D9 81					JSR	INBYTE
0711	84EE B0 11					BCS	NH41
0712	84F0	91	FE			STA	($FE),Y
0713	84F2	D1	FE			CMP	($FE),Y	;VERIFY
0714	84F4	F0	03			BEQ	DEPN
0715	84F6	20	20	83		JSR	OUTQM	;TYPE "?" IF NG
0716	84F9	20	B2	82	DEPN	JSR	INCCMP
0717	84FC CA					DEX
0718	84FD D0 E9					BNE	DEPBYT
0719	84FF F0 E0					BEQ	NEWLN
0720	8501	F0	0B		NH41	BEQ	DEPEC
0721	8503	C9	20			CMP	#$20	;SPACE = FWD
0722	8505	D0	4C			BNE	DEPES
0723	8507	70	F0			BVS	DEPN
0724	8509	20	42	83		JSR	SPACE
0725	850C	10	EB			BPL	DEPN
0726	850E	18			DEPEC	CLC
0727	850F	60				RTS
0728	8510	C9	4D		MEM1	CMP #'M'		;MEMORY, 1 PARM
0729	8512	D0	65			BNE	GO1
0730	8514	20	A7	82		JSR	P3SCR
0731	8517	20	16	83	NEWLOC JSR		CRLFSZ
0732	851A	20	3A	83		JSR	COMMA
0733	851D	A0	00			LDY	#0
0734	851F	B1	FE			LDA	($FE),Y
0735	8521	20	D3	81		JSR	OBCMIN
0736	8524	B0	11			BCS	NH42

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 Ldbyte JSR Inbyte

Models: II

LDBYTE JSR

INBYTE

CMP

CMP

CMP

CMP

CMP

CMP

CMP

II specifications