Ora, Stocom STA | Apple II manual

0179	809F	20	64	80		JSR	SAVINT
0180	80A2	20	D3	80		JSR	DBOFF	;STOP NMI'S
0181	80A5	AD 56 A6				LDA	TV
0182	80A8	D0	05			BNE	TVNZ
0183	80AA A9 32					LDA	#'2'
0184	80AC 4C 53 80					JMP	IDISP
0185	80AF 20 37 83				TVNZ	JSR	OPCCOM	;TRACE WITH DELAY
0186	80B2	AD 5D A6				LDA	AR
0187	80B5	20	4A	83		JSR	OBCRLF	;DISPLAY ACC
0188	80B8	20	5A	83		JSR	DELAY
0189	80BB 90 10					BCC	TRACON	;STOP IF KEY ENTERED
0190	80BD 4C 03 80					JMP	WARM
0191	80C0	20	86	8B	TRCOFF JSR ACCESS			;DISABLE NMIS
0192	80C3	38				SEC
0193	80C4	20	64	80		JSR	SAVINT
0194	80C7	20	D3	80		JSR	DBOFF
0195	80CA 6C 74 A6					JMP	(TRCVEC)	;AND GO TO SPECIAL TRACE
0196	80CD 20 E4 80				TRACON JSR		DBON	;ENABLE NMI'S
0197	80D0	4C	FD 83			JMP	GO1ENT+3	;AND RESUME (NO WRITE PROT)
0198	80D3	AD 01 AC			DBOFF	LDA	OR3A	;PULSE DEBUG OFF
0199	80D6	29	DF			AND	#$DF
0200	80D8	09	10			ORA	#$10
0201	80DA 8D 01 AC					STA	OR3A
0202	80DD AD 03 AC					LDA	DDR3A
0203	80E0	09	30			ORA	#$30
0204	80E2	D0	0F			BNE	DBNEW-3	;RELEASE FLIP FLOP SO KEY WORKS
0205	80E4	AD 01 AC			DBON	LDA	OR3A	;PULSE DEBUG ON
0206	80E7	29	EF			AND	#$EF
0207	80E9	09	20			ORA	#$20
0208	80EB 8D 01 AC					STA	OR3A
0209	80EE AD 03 AC					LDA	DDR3A
0210	80F1	09	30			ORA	#$30
0211	80F3	8D	03	AC		STA	DDR3A
0212	80F6	AD 03 AC			DBNEW	LDA	DDR3A	;RELEASE FLIP FLOP
0213	80F9	29	CF			AND	#$CF
0214	80FB 8D 03 AC					STA	DDR3A
0215	80FE 60					RTS
0216	80FF				;
0217	80FF				; GETCOM - GET COMMAND AND 0-3 PARMS
0218	80FF				;
0219	80FF 20 4D 83				GETCOM JSR		CRLF
0220	8102	A9	2E			LDA	#'.'	;PROMPT
0221	8104	20	47	8A		JSR	OUTCHR
0222	8107	20	1B	8A	GETC1	JSR	INCHR
0223	810A	F0	F3			BEQ	GETCOM	;CARRIAGE RETURN?
0224	810C	C9	7F			CMP	#$7F	;DELETE?
0225	810E	F0	F7			BEQ	GETC1
0226	8110	C9	00			CMP	#0	;NULL?
0227	8112	F0	F3			BEQ	GETC1
0228	8114				; L,S,U NEED TO BE HASHED 2 BYTES TO ONE
0229	8114	C9	53			CMP	#'S'
0230	8116	F0	1B			BEQ	HASHUS
0231	8118	C9	55			CMP	#'U'
0232	811A	F0	17			BEQ	HASHUS
0233	811C	C9	4C			CMP	#'L'
0234	811E	F0	0F			BEQ	HASHL
0235	8120	8D	57	A6	STOCOM STA		LSTCOM
0236	8123	20	42	83		JSR	SPACE
0237	8126	20	08	82		JSR	PSHOVE	;ZERO PARMS
0238	8129	20	08	82		JSR	PSHOVE
0239	812C	4C	20	82		JMP	PARM	;AND GO GET PARMS
0240	812F	A9	01		HASHL	LDA	#$01	;HASH LOAD CMDS TO ONE BYTE

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.

ORA

CMP

CMP

CMP

CMP

CMP

STOCOM STA

II specifications