Edba

2089	EDB7 4C A1 E1		JMP	COMIN
2090	EDBA
2091	EDBA	;ADD 1 TO BLK COUNT AND OUTPUT IT
2092	EDBA EE 15 01	ADDBLK INC BLK			;INCR BLK CNT
2093	EDBD EE 11 A4	ADDBK1 INC PRIFLG			;SO DONT OUTPUT TO PRINTR
2094	EDC0 A9 12		LDA #18		;ONLY OUTPUT IN THIS POSITION
2095	EDC2 8D 15 A4		STA	CURPO2
2096	EDC5 AD 4A A4		LDA DIBUFF+18		;SAVE DISBUF (FOR EDIT)
2097	EDC8 48		PHA
2098	EDC9 AD 4B A4		LDA	DIBUFF+19
2099	EDCC 48		PHA
2100	EDCD AE 13 A4		LDX OUTFLG		;SAVE OUTFLG
2101	EDD0 A9 0D		LDA	#CR
2102	EDD2 8D 13 A4		STA	OUTFLG	;TO OUTPUT TO TERMINAL
2103	EDD5 AD 16 01		LDA	BLK+1	;BLK CNT COMING FROM TAPE
2104	EDD8 20 46 EA		JSR	NUMA	;OUTPUT IN ASCII
2105	EDDB 8E 13 A4		STX OUTFLG		;RESTORE OUTFLG
2106	EDDE 68		PLA
2107	EDDF 8D 4B A4		STA	DIBUFF+19
2108	EDE2 68		PLA
2109	EDE3 8D 4A A4		STA	DIBUFF+18
2110	EDE6 CE 11 A4		DEC PRIFLG		;RESTORE PRI FLG
2111	EDE9 60		RTS
2112	EDEA
2113	EDEA	;SET TAPE (1 OR 2) FOR INPUT
2114	EDEA A9 37	TAISET LDA #$37			;SET PB7 FOR INPUT
2115	EDEC 8D 02 A8		STA	DDRB
2116	EDEF AD 34 A4		LDA	TAPIN	;INPUT FLG (TAP 1=2 OR TAP 2=1)
2117	EDF2 20 1C EE		JSR	TIOSET	;RESET PB4 OR PB5
2118	EDF5 A9 EE		LDA	#MOFF+DATIN ;SET CA2=1 (DATA IN)
2119	EDF7 8D 0C A8		STA	PCR
2120	EDFA A9 FF		LDA	#$FF	;PREPARE T2
2121	EDFC 8D 08 A8		STA	T2L	;LACTH
2122	EDFF	;CHCK BIT BY BIT UNTIL			$16
2123	EDFF 20 3B EE	SYNC	JSR RDBIT		;GET A BIT IN MSB
2124	EE02 4E 2A A4		LSR CPIY		;MAKE ROOM FOR BIT
2125	EE05 0D 2A A4		ORA CPIY		;PUT BIT INTO MSB
2126	EE08 8D 2A A4		STA	CPIY
2127	EE0B C9 16		CMP	#$16	;SYN CHAR ?
2128	EE0D D0 F0		BNE	SYNC
2129	EE0F A2 05		LDX	#$05	;TEST FOR 5 SYN CHARS
2130	EE11 20 29 EE	SYNC1	JSR	GETTAP
2131	EE14 C9 16		CMP	#$16
2132	EE16 D0 E7		BNE SYNC		;IF NOT 2 CHAR RE-SYNC
2133	EE18 CA		DEX
2134	EE19 D0 F6		BNE	SYNC1
2135	EE1B 60		RTS
2136	EE1C
2137	EE1C	;SET PB4 OR PB5 OFF
2138	EE1C	;USED BY IN/OUT SET UPS
2139	EE1C D0 04	TIOSET BNE TIOS1			;BRCH IF TAP1
2140	EE1E A9 14		LDA #$14		;SET TAP 2 OFF (PB5=0)
2141	EE20 D0 02		BNE	TIOS2
2142	EE22 A9 24	TIOS1	LDA	#$24	;SET TAP 1 OFF (PB4=0)
2143	EE24 8D 00 A8	TIOS2	STA	DRB
2144	EE27 78		SEI		;DISABLE INTERR WHILE TAP
2145	EE28 60		RTS
2146	EE29
2147	EE29	;GET 1 CHAR FROM TAPE AND RETURN
2148	EE29	;WITH CHR IN ACC, USE CPIY TO ASM CHR ,USES Y
2149	EE29 A0 08	GETTAP LDY #$08			;READ 8 BITS
2150	EE2B 20 3B EE	GETA1	JSR RDBIT		;GET NEXT DATA BIT

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 Edba

Models: II

CMP

CMP

II specifications