Dumpta LDX, DUMPT1 LDA | Apple II manual

0914	E569	D0	03			BNE	*+5
0915	E56B EE 07 01					INC	S2+1
0916	E56E 60					RTS
0917	E56F
0918	E56F				;OPEN A FILE FOR OUTPUT TO TAPE BY BLOCKS
0919	E56F				;OUTPUT FILENAME GIVEN BY JSR WHEREO TO TAPE BUFF
0920	E56F A2 00				DUMPTA LDX		#0	;INITIALIZE TAPTR
0921	E571	8A				TXA		;TO OUTPUT
0922	E572	8E	68	01		STX	BLKO	;BLOCK COUNTER
0923	E575	8E	37	A4		STX	TAPTR2	;TAP OUTPUT BUFF PTR
0924	E578	20	8B	F1		JSR	TOBYTE	;TWO START OF FILE CHRS
0925	E57B BD 2E A4				DUMPT1 LDA		NAME,X	;OUTPUT FILENAME
0926	E57E 20 8B F1					JSR	TOBYTE
0927	E581	E8				INX
0928	E582	E0	05			CPX	#5
0929	E584	D0	F5			BNE DUMPT1		;5 FILENAME CHRS ?
0930	E586	60				RTS
0931	E587
0932	E587				;DUMP ROUTINE TO TAPE WITH KIM-1 FORMAT
0933	E587	20	1D	F2	DUMPKI JSR TAOSET			;SET TAPE FOR OUTPUT
0934	E58A A9 2A					LDA #'*'		;TO EITHER 1 OR 2
0935	E58C 20 4A F2					JSR OUTTAP		;DIRECTLY TO TAPE
0936	E58F				;ID FROM LAST 2 CHRS OF FILENAME
0937	E58F 20 25 E4					JSR	GETID
0938	E592	20	3B	E5		JSR	OUTCK1
0939	E595	20	4D	EB		JSR	CLRCK
0940	E598				;STARTING ADDR
0941	E598	AD 1A A4				LDA	S1
0942	E59B 20 38 E5					JSR	OUTCK	;WITH CHCKSUM
0943	E59E AD 1B A4					LDA	S1+1
0944	E5A1 20 38 E5					JSR	OUTCK
0945	E5A4				;OUTPUT DATA
0946	E5A4 20 31 E5				DUK2	JSR OUTCKS		;OUTPUT CHR SPECIFIED BY S1+1,S1
0947	E5A7 20 5D E5					JSR ADDS1		;INCREM S1+1,S1
0948	E5AA AD 1A A4					LDA	S1	;CHCK FOR LAST BYTE
0949	E5AD CD 1C A4					CMP	ADDR	;LSB OF END ADDR
0950	E5B0 AD 1B A4					LDA	S1+1
0951	E5B3 ED 1D A4					SBC	ADDR+1
0952	E5B6 90 EC					BCC	DUK2	;NEXT CHR
0953	E5B8				;NOW SEND END CHR "/"
0954	E5B8 A9 2F					LDA	#'/'
0955	E5BA 20 4A F2					JSR OUTTAP		;DIRECTLY TO TAPE
0956	E5BD				;CHECKSUM
0957	E5BD AD 1E A4					LDA	CKSUM
0958	E5C0 20 46 EA					JSR	NUMA	;ASCII REPRES
0959	E5C3 AD 1F A4					LDA	CKSUM+1
0960	E5C6 20 46 EA					JSR	NUMA
0961	E5C9				;TWO EOT CHRS
0962	E5C9 A9 04					LDA	#$04
0963	E5CB 20 4A F2					JSR	OUTTAP
0964	E5CE 20 4A F2					JSR	OUTTAP
0965	E5D1				;TURN TAPES ON
0966	E5D1 4C 20 E5					JMP	DU13
0967	E5D4
0968	E5D4				;***** * COMMAND-ALTER PROGRAM COUNTER *****
0969	E5D4 20 AE EA				CGPC	JSR ADDIN		;ADDR <=ADDRESS ENTERED FROM KB
0970	E5D7 20 DD E5				CGPC0	JSR CGPC1		;TRANSFER ADDR TO SAVPC
0971	E5DA 4C 13 EA					JMP	CRLOW
0972	E5DD AD 1D A4				CGPC1	LDA	ADDR+1	;THIS WAY MNEMONICS CAN USE IT
0973	E5E0 8D 26 A4					STA	SAVPC+1
0974	E5E3 AD 1C A4					LDA	ADDR
0975	E5E6 8D 25 A4					STA	SAVPC

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 Dumpta LDX, DUMPT1 LDA

Models: II

DUMPTA LDX

TXA

DUMPT1 LDA

CMP

II specifications