Register Name Patch, Outcht STX

2225	8F56	8E	38	A6	OUTCHT STX		SCR8	;PRESERVE X
2226	8F59	8C	39	A6		STY	SCR9	;DITTO Y
2227	8F5C 85		FC			STA	CHAR
2228	8F5E A9		FF			LDA	#$FF	;USE FF W/SHIFTS TO COUNT BITS
2229	8F60	48			KIMBIT PHA			;SAVE BIT CTR
2230	8F61	AD	02	A4		LDA	TPOUT	;GET CURRENT OUTPUT LEVEL
2231	8F64	46	FC			LSR	CHAR	;GET DATA BIT IN CARRY
2232	8F66	A2	12			LDX	#18	;ASSUME 'ONE'
2233	8F68	B0	02			BCS	HF
2234	8F6A A2		24			LDX	#36	;BIT IS ZERO
2235	8F6C A0		19		HF	LDY	#25
2236	8F6E 49		08			EOR	#TPBIT	;INVERT OUTPUT
2237	8F70	8D	02	A4		STA	TPOUT
2238	8F73	88			HFP1	DEY		;PAUSE FOR 138 USEC
2239	8F74	D0	FD			BNE	HFP1
2240	8F76	CA				DEX		;COUNT HALF CYCS OF HF
2241	8F77	D0	F3			BNE	HF
2242	8F79	A2	18			LDX	#24	;ASSUME BIT IS ONE
2243	8F7B B0		02			BCS	LF20
2244	8F7D A2		0C			LDX	#12	;BIT IS ZERO
2245	8F7F A0		27		LF20	LDY	#39
2246	8F81	49	08			EOR	#TPBIT	;INVERT OUTPUT
2247	8F83	8D	02	A4		STA	TPOUT
2248	8F86	88			LFP1	DEY		;PAUSE FOR 208 USEC
2249	8F87	D0	FD			BNE	LFP1
2250	8F89	CA				DEX		;COUNT HALF CYCS
2251	8F8A D0		F3			BNE	LF20
2252	8F8C 68					PLA		;RESTORE BIT CTR
2253	8F8D 0A					ASL	A	;DECREMENT IT
2254	8F8E D0		D0			BNE	KIMBIT	;FF SHIFTED 8X = 0
2255	8F90	AE	38	A6		LDX	SCR8
2256	8F93	AC	39	A6		LDY	SCR9
2257	8F96	98				TYA		;RESTORE DATA BYTE
2258	8F97	60				RTS
2259	8F98
2260	8F98	FF	FF			.DB	$FF,$FF	;NOT USED
2261	8F9A
2262	8F9A				; REGISTER		NAME PATCH
2263	8F9A					*=$8F9A
2264	8F9A 53					.DB	"S"
2265	8F9B 46					.DB	"F"
2266	8F9C 41					.DB	"A"
2267	8F9D 58					.DB	'X'
2268	8F9E 59					.DB	"Y"
2269	8F9F 01					.DB	$01
2270	8FA0				;
2271	8FA0				;
2272	8FA0				;***
2273	8FA0				;*** DEFAULT TABLE
2274	8FA0				;***
2275	8FA0					*=$8FA0
2276	8FA0				DFTBLK =*
2277	8FA0 00		C0			.DW $C000		;BASIC *** JUMP TABLE
2278	8FA2 A7		8B			.DW	TTY
2279	8FA4 64		8B			.DW	NEWDEV
2280	8FA6 00		00			.DW	$0000	;PAGE ZERO
2281	8FA8 00		02			.DW	$0200
2282	8FAA 00		03			.DW	$0300
2283	8FAC 00		C8			.DW	$C800
2284	8FAE 00		D0			.DW	$D000
2285	8FB0 04					.DB	$04	;TAPE DELAY (9.0 SEC)
2286	8FB1 2C					.DB	$2C	;KIM TAPE BOUNDARY

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 Register Name Patch, Outcht STX

Models: II

OUTCHT STX

; REGISTER

NAME PATCH

II specifications