E46A EE INC Bkflg SET FLG | Apple II specs

0790	E46A EE		10	A4		INC BKFLG		;SET FLG
0791	E46D				;CHCK OUTPUT DEV
0792	E46D AD		13	A4	DU1A	LDA	OUTFLG
0793	E470	C9	4B			CMP	#'K'	;TAPE FOR KIM?
0794	E472	D0	04			BNE	*+6
0795	E474	68				PLA		;PULL FLG
0796	E475	4C	87	E5		JMP	DUMPKI	;YES, GO OUTPUT WHOLE FILE
0797	E478	A0	01			LDY	#1	;OUTPUT ONE MORE BYTE
0798	E47A 20		CD E2			JSR	NXTADD
0799	E47D 20		F0	E9	DU2	JSR	CRLF
0800	E480	20	07	E9		JSR	RCHEK	;SEE IF HE WANTS TO INTERRUPT
0801	E483				;CALCULATE		# OF BYTES YET TO BE DUMPED
0802	E483	20	4D	EB		JSR	CLRCK	;CLEAR CKSUM
0803	E486	AD	1C	A4		LDA ADDR		;END ADDRESS-CURRENT ADDRESS
0804	E489	38				SEC
0805	E48A ED		1A	A4		SBC	S1
0806	E48D 48					PHA		;# OF BYTES LOW
0807	E48E AD		1D	A4		LDA	ADDR+1
0808	E491	ED	1B	A4		SBC	S1+1
0809	E494	D0	09			BNE	DU6	;# OF BYTES HIGH
0810	E496				;SEE IF 24		OR MORE BYTES TO GO
0811	E496	68				PLA		;# BYTES HIGH WAS ZERO
0812	E497	F0	42			BEQ	DU10	;ARE DONE
0813	E499	C9	18			CMP	#24	;# BYTES > 24 ?
0814	E49B 90		05			BCC	DU8	;NO ,ONLY OUTPUT REMAINING BYTES
0815	E49D B0		01			BCS DU7		;YES ,24 BYTES IN NEXT RECORD
0816	E49F 68				DU6	PLA
0817	E4A0 A9		18		DU7	LDA	#24
0818	E4A2				;OUTPUT ";" ,# OF BYTES AND SA
0819	E4A2 48				DU8	PHA
0820	E4A3 20		BA E9			JSR SEMI		;SEMICOLON
0821	E4A6 68					PLA
0822	E4A7 8D		19	A4		STA COUNT		;SAVE # OF BYTES
0823	E4AA 20		38	E5		JSR OUTCK		;OUTPUT # OF BYTES
0824	E4AD AD		1B	A4		LDA	S1+1	;OUTPUT ADDRESS
0825	E4B0 20		38	E5		JSR	OUTCK
0826	E4B3 AD		1A	A4		LDA	S1
0827	E4B6 20		38	E5		JSR	OUTCK
0828	E4B9				;OUTPUT DATA
0829	E4B9 20		31	E5	DU9	JSR OUTCKS		;GET CHAR SPEC BY S1 (NO PAG 0)
0830	E4BC A9		00			LDA	#0	;CLEAR DISP PTR
0831	E4BE 8D		15	A4		STA	CURPO2
0832	E4C1 20		5D	E5		JSR	ADDS1	;INCR S1+1,S1
0833	E4C4 CE		19	A4		DEC	COUNT	;DECREMENT BYTE COUNT
0834	E4C7 D0		F0			BNE DU9		;NOT DONE WITH THIS RECORD
0835	E4C9				;OUTPUT CKSUM
0836	E4C9 AD		1F	A4		LDA	CKSUM+1
0837	E4CC 20		3B	E5		JSR	OUTCK1	;WITHOUT CHEKA
0838	E4CF AD		1E	A4		LDA	CKSUM
0839	E4D2 20		3B	E5		JSR	OUTCK1
0840	E4D5 20		66	E5		JSR	INCS2	;INC VERTICAL COUNT
0841	E4D8 4C		7D	E4		JMP DU2		;NEXT RECORD
0842	E4DB				;ALL DONE
0843	E4DB A0		1C		DU10	LDY #M5-M1		;PRINT "MORE ?#
0844	E4DD 20		70	E9		JSR KEPR		;OUTPUT MSG AND GET AN ANSWER
0845	E4E0 C9		59			CMP	#'Y'
0846	E4E2 D0		03			BNE	*+5
0847	E4E4 4C		44	E4		JMP	DU1	;DUMP MORE DATA
0848	E4E7 68					PLA		;RESTORE FLG
0849	E4E8 8D		10	A4		STA	BKFLG
0850	E4EB				;OUTPUT LAST RECORD
0851	E4EB 20		66	E5		JSR	INCS2

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.

E46A EE

INC BKFLG

;SET FLG

CMP

CMP

CMP

II specifications