Rtmode, Getfmt TAX, MNNDX1 LSR, MNNDX2 LSR, MNNDX3 DEY

2846	F45F	5D5B
2847	F461
2848	F461				;DISASSEMBLE INSTRUCTIONS AND SHOW REGS IS REGF SET
2849	F461	AD 0E A4			REGQ	LDA REGF		;GET FLAG
2850	F464	F0	06			BEQ	DISASM
2851	F466	20	32	E2		JSR	REG1	;SHOW THE SIX REGS
2852	F469	20	24	EA		JSR CRCK		;<CR>
2853	F46C
2854	F46C 20 45 F5				DISASM JSR		PRBL2
2855	F46F 20 3C F5					JSR	PRPC	;OUTPUT PROG COUNTR
2856	F472	A0	00			LDY	#0
2857	F474	20	56	EB		JSR	PCLLD
2858	F477	A8				TAY
2859	F478	4A				LSR	A
2860	F479	90	0B			BCC	IEVEN
2861	F47B 4A					LSR	A
2862	F47C B0 17					BCS	ERR
2863	F47E C9 22					CMP	#$22
2864	F480	F0	13			BEQ	ERR
2865	F482	29	07			AND	#7
2866	F484	09	80			ORA	#$80
2867	F486	4A			IEVEN	LSR	A
2868	F487	AA				TAX
2869	F488	BD 5B F5				LDA	MODE,X
2870	F48B B0 04					BCS	RTMODE
2871	F48D 4A					LSR	A
2872	F48E 4A					LSR	A
2873	F48F 4A					LSR	A
2874	F490	4A				LSR	A
2875	F491	29	0F		RTMODE AND		#$F
2876	F493	D0	04			BNE	GETFMT
2877	F495	A0	80		ERR	LDY	#$80
2878	F497	A9	00			LDA	#0
2879	F499	AA			GETFMT TAX
2880	F49A BD 9F F5					LDA	MODE2,X
2881	F49D 8D 16 01					STA	FORMA
2882	F4A0 29 03					AND	#3
2883	F4A2 85 EA					STA	LENGTH
2884	F4A4 98					TYA		;OPCODE
2885	F4A5 29 8F					AND	#$8F
2886	F4A7 AA					TAX
2887	F4A8 98					TYA		;OPCODE IN A AGAIN
2888	F4A9 A0 03					LDY	#3
2889	F4AB E0 8A					CPX	#$8A
2890	F4AD F0 0B					BEQ	MNNDX3
2891	F4AF 4A				MNNDX1 LSR		A
2892	F4B0 90 08					BCC	MNNDX3
2893	F4B2 4A					LSR	A
2894	F4B3 4A				MNNDX2 LSR		A
2895	F4B4 09 20					ORA	#$20
2896	F4B6 88					DEY
2897	F4B7 D0 FA					BNE	MNNDX2
2898	F4B9 C8					INY
2899	F4BA 88				MNNDX3 DEY
2900	F4BB D0 F2					BNE	MNNDX1
2901	F4BD 48					PHA		;SAVE MNEMONIC TABLE INDEX
2902	F4BE 20 56 EB					JSR	PCLLD
2903	F4C1 20 46 EA					JSR	NUMA
2904	F4C4 20 45 F5					JSR PRBL2		;PRINT LAST BLANK
2905	F4C7 68					PLA
2906	F4C8 A8					TAY
2907	F4C9 B9 B9 F5					LDA	MNEML,Y

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 Rtmode, Getfmt TAX, MNNDX1 LSR, MNNDX2 LSR, MNNDX3 DEY

Models: II

CMP

ORA

TAX

RTMODE AND

GETFMT TAX

TAX

MNNDX1 LSR

MNNDX2 LSR

ORA

MNNDX3 DEY

II specifications