Apple II manual Rtmode, Getfmt TAX, MNNDX1 LSR, MNNDX2 LSR, MNNDX3 DEY

Page 187

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

 

 

 

 

 

 

 

 

 

 

Page 186 Page 188
Image 187
Page 186 Page 188
Contents Apple II Original ROM Information Qjjj Data0005A0 FDA9A920 EDFDA98D 4CEDFDA9 8D4CEDFD Page Page Page JI@ Page 001AC0 FFFFE1E1 EFEEE7E8 EEE7F3FB FBEEE1EF 001AA0 F3FFE8E1 E8E8EFEB FFFFE0FF Ffefeeef001AE0 E8EEE7E8 Efefeeef Eeefeeee Efeeeeee 001DB0 9CDD9CDE DD9EC3DD Cfcacdcb 00479AAD 001FB0 Ffffffff FFFF2071 E14CBFEF 2003EEA9 Page 60FFFFFF .JJ DDBAF9F0 0DBDBAF9FA60FFFF 02E61FBD JJJAEAEA8AD Page Page Return Page Basl System Monitor CopyrightLOC0 LOC1Mask INY NO, INC Index X-COORD LDY PCH PRMN1 LDA FMT1 DFB Format Above EOR STA A3H FAE2 A2 FB Tabv STA Vtabs to ROW in A-REG STA Bash BCC Clreol Clear to END of Line NXTA4 INC A4L Incr 2-BYTE A4 STA BASL,Y Replace Flashing Screen Fdad A5 3C LT2 LDA A2L,X Copy A2 2 Bytes to Ioprt LDA A2L SET RAM IN/OUT Vectors BCC RD3 Loop Until Done STA A3H,X DFB LIST-1 FFF3 CC BRTBL,X SaveLSR Prepare Carry for BC, BNC Stat LDA R0L JSR STAT2 Push LOW PC Byte VIA R12 JSR LDA IN,YCMP BNE NomoveRTN MloopDCR BNZ MloopBM1 INRBNC BNZLoad DOUBLE-BYTE Indirect ExampleLoad Indirect Store IndirectPOP Indirect Store DOUBLE-BYTE IndirectStore POP Indirect Subtract ACCPOP DOUBLE-BYTE Indirect BNC LOOP1 CompareBF A0 SET $A0BF LOOP1 SUBBNZ LOOP2 Return to 6502 ModeDecrement LOOP2LOOP3 SUB Branch if no CarryBranch if Carry SET Branch if PlusReturn from Sweet 16 Subroutine Branch if Minus ONEBranch if not Minus ONE BreakSTA IND+1 LDA OPTBL,X LDA #ADRHSTA IND JMP Page Page Sweet 16 Introduction Page Source NVA DSPPrint Dbload Sweet REM Ctrl D Input Enter String a $ , a $Sweet Poke 776 , a REM Poke DestinationPrint Print Goto Call -605 Return REM XAM8 in MonitorMnemr MINI-ASSEMBLERBaum MnemlSBC PCL Form ADDR-PC-2 JSR Cout Position FORM7 STX A1H Save Index BNE ORGCLC STANorm LDA EXP1 ZERO? Shift Dividend Left Floating Point Representation LOW Floating Point PackageNumber Exponent Mantissa StoredHigh LOW EXP Mantissa Floating Point Representation ExamplesFloating Point Subroutine Descriptions Page Page Page Page HIGH-ORDER STY Init MANT1 LDYSTY Calling SequencePage Page Page Page Page Page Mmmmmmmm SeeeeeeeFsub ORG SET Base page Adresses STA X2,X Common LOG of MANT/EXP1 Result in MANT/EXP1 Ovflw BRK Overflow 1EBB STA X2,X Load EXP/MANT2 with Z 1EBD DEX 1EBE BPL LF3 Addend YES,RETURN with MANT1 NormalizedRight Shift MANT1 or Swap with MANT2 on Carry CMPNormx BCC Norm If EXEN, Normalize PRODUCT, Else Complement LDX Load X for High Byte of Exponent Errata for Rankins Floating Point RoutinesLDA STA Fmul LOGFadd FsubPage Mantissa MOD 9/76 Load X for Later M2MHL Contin 1EAD LFA LDA Z,X L2E DCM Mdend RTLOG1Normx Object Code Dump Page Lstcom TapdelHsbdry Toutfl=UIRQVC OutvecUrcvec =UBRKVCADC TAXStocom STA ORABPL HASHUS+2 Restore Except A,F JMP BEQSTX CPXTXA Exwrap RTSChksad PHP Outxah PHANibasc and #$0F Nibble in a to Ascii in a BCS INST1 RTI Ldbyte JSR Inbyte Verify MEM E1PARM JMP STD2 MORED2 LDY JSR Brtt INC Ercnt UP to FF MEM3EX CLC SBC P3L BNE Exitgk Ksconf LDA Txtmov LDA BNE INRT2 Outone Newdev LDA Dftxfr LDXLDA Toutfl 8BFF 0D Msfirst Ddrdig BufadhLOADT2 STA Mode BNE Lcerr Last Char not Kgettr LDA H8DFF BCC PACKT3 DUMPT4 LDY DumptDUMPT1 TXA DMPT1A LDAOutbth LDX Outcht STX Register Name PatchHS Tape Boundary Nowln Rockwell InternationalUdrah UddraTMASK1 =MOVAD OldlenLength MovadTABUF2 CurposChecksum TabuffWrite Edge Detect Control not Used Because KB EQS CRBCFD2A0A0A0A0 DB TO,EQSSEI Disable Interrupt RS6 JSR Crlow Clear Display E1AC Have Valid Command Space Comm Nxtadd TYALOAD1A LDA ForLOADK5 LDX JMP LOADK5 Next E46A EE INC Bkflg SET FLG OUTCK1 PHA Outcks LDADUMPT1 LDA Dumpta LDXE5EA TOGTA1 LDA TOGTA2 LDA BCC JD3 MSG Whereo LDY CPY ANY OtherSTA Outflg Outall PHA Output PHAROL Priflg Restore FLG Wrax JSR Numa EAA3 CA DEX Memerr JSR STA STIY+2 Dehalf LDA EC5E 4A LSR Only ROW Debkey LDX Onekey LDAED3B GET a Char from Tape Subroutine Edba LSR Cpiy Make Room for MSB Outtty PHA OUTD2A TXA OUTD1A CPXOUTDD1 PHA LDA First Chip Select Prndot LDA LDA #PRTIME/256 Start T2 for 1.7 Msec BIT Imask See if DOT is SET Newcol LDA NEW Print ROWBkcksm LDA Ckbuff LDAOUTTA2 LDX OUTTA1 PHAZero Leftmost Column F2E1 3E7E7F3E7F7FCOL0DB BGYU76HN MNNDX2 LSR RtmodeGetfmt TAX MNNDX1 LSRPLA PRADR2 LDAPRADR4 DEX BPL PCADJ4 AIM Text Editor LDA END+1 CMP with END AF E7 JMP KEP RUB COMMAND-FIND String JMP CHN1 See if WE RAN Past END of Buffer Limit BEQ REP2 SBC Oldlen GOGO1 RTS FB46 8A9AAABACADA ROM TableStartm JSR Rdaddr LDY IMMED1 LDX Tryjmp LDABrnchc JMP OPCMP1 LDAConvrt LDA Brcomp LDA FORMD2 LDXCompbr LDX Forwrd LDA Backwd LDACuread TXA MATCH1 JMPPATCH4 LDX CURPO2 Dont do Anything if 8D PATC15 JSR Crlf Decode Command Brcomp AddblkADDS1A BkcksmCRA Goerr Namo E8CF NAMO1 RD2 EA5D RD1 E6AC AIM 65 Microcomputer Monitor Program ListingAIM 65 Microcomputer Basic Language Reference Manual Table of ContentsIntroduction WIDTH? Installing Basic in the AIM ROM Installation ProcedureEntering Basic Memory SIZE?Printer Control Exiting BasicReentering Basic Basic CursorASC Getting Started with Basic Basic Command SETCHR$ Listing a Program Direct and Indirect Commands Direct CommandsIndirect Commands Operating on Programs and LinesList Printing Data Deleting a LineReplacing a Line Deleting a ProgramNumber Format Print ONE Half Equals 1/2Number Output Format Input R Variables Assigning Variables with AN Input StatementVariable Names Print A, A*2 LET Z=7 Print Z, Z-A PSTG$Reserved Words Input B Program Using RelationsRemarks Relational TestsPrint Nsqrn LoopingSquare Root Program AN Improved Square Root ProgramSome Other Looping Operations Another Square Root ProgramPrint Nsqrn Next N COUNT-BACKWARD ProgramSort Program Print What is the NumberPrint I,J Next Next J Matrix OperationsStopping a Program Print BAD GUESS, TRY Again RestoreInput N Print Must be IntegerPrint LENA$,LENMICROCOMPUTER Strings$=ROCKWELL R6500 Print A$ Rockwell R6500 LEN FunctionMID$ Function RIGHT$ FunctionData AIM 65,DOG Print B$ Basic for Rockwell R6500Print C$ Basic FOR-ROCKWELL-R6500 VAL and Strs Functions CHR$ FunctionPrint Print X$ Additional String ConsiderationsName Example PURPOSE/USE DIM Input Input X$Print X/1.3 Operators Symbol Sample StatementESC Cntl PrintNegation Symbol Sample Statement PURPOSE/USERelational Operators Operator Argument Result Not Not If not Q3 thenStatement SYNTAX/FUNCTION Example Clear CommandsPrint Intruder Alert AlertStatement SYNTAX/FUNCTION NEW Statement SYNTAX/FUNCTION FREStatement SYNTAX/FUNCTION List Statement SYNTAX/FUNCTION LoadStatement SYNTAX/FUNCTION Example DEF Statement SYNTAX/FUNCTION Example RUNStatement SYNTAX/FUNCTION Example Save Program StatementsStatement SYNTAX/FUNCTION END Statement SYNTAX/FUNCTION DIMStatement SYNTAX/FUNCTION For Statement SYNTAX/FUNCTION IF...THEN Statement SYNTAX/FUNCTION GosubStatement SYNTAX/FUNCTION Goto Statement SYNTAX/FUNCTION IF...GOTOStatement SYNTAX/FUNCTION ON...GOSUB If X0 then Print ERROR, X Negative Goto ExampleStatement SYNTAX/FUNCTION LET Statement SYNTAX/FUNCTION NextStatement SYNTAX/FUNCTION Return Statement SYNTAX/FUNCTION RestoreSymbol SYNTAX/FUNCTION Wait Example Restore ReturnPrint Value ISA Statement SYNTAX/FUNCTION InputStatement SYNTAX/FUNCTION POS Statement SYNTAX/FUNCTION PrintString Functions Statement SYNTAX/FUNCTION ASC Statement SYNTAX/FUNCTION ReadStatement SYNTAX/FUNCTION SPC Statement SYNTAX/FUNCTION TABStatement SYNTAX/FUNCTION RIGHT$ Statement SYNTAX/FUNCTION LEFT$Statement SYNTAX/FUNCTION LEN Statement SYNTAX/FUNCTION MID$Statement SYNTAX/FUNCTION EXP Arithmetic Functions Statement SYNTAX/FUNCTION ABSStatement SYNTAX/FUNCTION ATN Statement SYNTAX/FUNCTION COSPrint Sinx Statement SYNTAX/FUNCTION Example SGNPrint Sgnx Statement SYNTAX/FUNCTION Example SIN?XX Error Error MessagesInverse Hyperbolic Secant Space Hints TAB, SPCPRINTX,Y,Z Speed Hints Storage Allocation InformationOLD This is Probably the Most Important Speed HintConverting Basic Programs not Written for AIM 65 Basic OLD AIMSOH Assembly Language SubroutinesAscii Character Codes Decimal NULPrintx Address Content$AE InputnumbernRUN NUMBER? Recording on Cassette Using the Basic Save CommandStoring AIM 65 Basic Programs on Cassette IN= Cassette Operations Using the AIM 65 EditorOUT=T F= OUT=T F=FNAME T=0FAC ATN ImplementationEntered by Alter Memory M OF9CSaving ATN Object Code on Cassette WIDTH? Bytes Free AIM 65 Basic
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Manual 19 pages 1.54 Kb

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.
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