Output PHA, Outall PHA | Apple II guide

1469	E973				;READ AND ECHO A CHAR FROM KB OR TTY
1470	E973	20	83	FE	REDOUT JSR		CUREAD
1471	E976	C9	0D		RED2	CMP	#CR
1472	E978	F0	C1			BEQ RCHT1		;DO NOT ECHO <CR>
1473	E97A
1474	E97A				;OUTPUTS A		CHAR TO EITHER TTY OR D/P
1475	E97A 48				OUTPUT PHA			;SAVE IT
1476	E97B AD 11 A4				OUT1	LDA	PRIFLG	;IF LSB=1 OUTPUT ONLY TO DISP
1477	E97E 29 01					AND	#$01
1478	E980	F0	04			BEQ	OUT1A
1479	E982	68				PLA
1480	E983	4C	02	EF		JMP OUTDP1		;ONLY TO DISPL
1481	E986	20	42	E8	OUT1A	JSR TTYTST		;TTY OR KB ?
1482	E989	D0	04			BNE	OUT2
1483	E98B 68					PLA
1484	E98C 4C A8 EE					JMP OUTTTY		;TO TTY
1485	E98F 68				OUT2	PLA
1486	E990	4C	FC EE			JMP OUTDP		;TO DISP & PRINTR
1487	E993
1488	E993				;GET A CHR		FROM CURRENT INPUT DEVICE (SET ON INFLG)
1489	E993	AD 12 A4			INALL	LDA	INFLG
1490	E996	C9	54			CMP	#'T'
1491	E998	D0	03			BNE	*+5
1492	E99A 4C 3B ED					JMP	TIBYTE	;CHAR FROM BUFFER
1493	E99D C9 4B					CMP	#'K'	;WITH KIM FORMAT
1494	E99F D0 03					BNE	*+5
1495	E9A1 4C 29 EE					JMP	GETTAP	;DIRECTLY FROM TAPE
1496	E9A4 C9 4D					CMP	#'M'	;MEMORY FOR ASM?
1497	E9A6 D0 03					BNE	*+5
1498	E9A8 4C D0 FA					JMP	MREAD
1499	E9AB C9 55					CMP	#'U'	;USER ROUTINE?
1500	E9AD D0 04					BNE	*+6
1501	E9AF 38					SEC		;SET FLG FOR NORMAL INPUT
1502	E9B0 6C 08 01					JMP	(UIN)
1503	E9B3 C9 4C					CMP	#'L'	;TO LOAD PPR TAPE
1504	E9B5 D0 A8					BNE	RDRUP
1505	E9B7 4C DB EB					JMP GETTTY		; FROM TTY
1506	E9BA
1507	E9BA				;.FILE	A2
1508	E9BA A9 3B				SEMI	LDA #SEMICOLON		;OUTPUT A ";"
1509	E9BC				;WRITE	A CHR TO OUTPUT DEVICE (SET ON OUTFLG)
1510	E9BC 48				OUTALL PHA
1511	E9BD AD 13 A4					LDA	OUTFLG
1512	E9C0				;TAPE BY BLOCKS
1513	E9C0 C9 54					CMP #'T'		;TAPES ?
1514	E9C2 D0 04					BNE	OUTA1
1515	E9C4 68					PLA
1516	E9C5 4C 8B F1					JMP TOBYTE		;OUTPUT ONE CHAR TO TAPE BUFFER
1517	E9C8				;TAPE KIM FORMAT
1518	E9C8 C9 4B				OUTA1	CMP #'K'		;KIM-1 ?
1519	E9CA D0 04					BNE	OUTA2
1520	E9CC 68					PLA
1521	E9CD 4C 4A F2					JMP	OUTTAP
1522	E9D0				;PRINTER
1523	E9D0 C9 50				OUTA2	CMP #'P'		;PRINTER ?
1524	E9D2 D0 0E					BNE	OUTA3
1525	E9D4 38					SEC		;TURN PRINTER ON
1526	E9D5 6E 11 A4					ROR	PRIFLG
1527	E9D8 68					PLA
1528	E9D9 08					PHP
1529	E9DA 20 00 F0					JSR	OUTPRI
1530	E9DD 28					PLP

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 Output PHA, Outall PHA

Models: II

CMP

OUTPUT PHA

CMP

CMP

CMP

CMP

CMP

OUTALL PHA

II specifications