Apple II manual Beq, Stx, Cpx, Jmp, Ascnib CMP, Bcc

Page 108

0365

8206

38

 

 

 

SEC

 

 

0366

8207

60

 

 

 

RTS

 

 

0367

8208

A2

10

 

PSHOVE LDX #$10

;PUSH PARMS DOWN

0368

820A

0E

4A

A6

PRM10

ASL

P3L

 

0369

820D

2E

4B

A6

 

ROL

P3H

 

0370

8210

2E

4C

A6

 

ROL

P2L

 

0371

8213

2E

4D

A6

 

ROL

P2H

 

0372

8216

2E

4E

A6

 

ROL

P1L

 

0373

8219

2E

4F

A6

 

ROL

P1H

 

0374

821C

CA

 

 

 

DEX

 

 

0375

821D

D0

EB

 

 

BNE

PRM10

 

0376

821F

60

 

 

 

RTS

 

 

0377

8220

20

88

81

PARM

JSR SAVER

;GET PARMS - RETURN ON C/R OR ERR

0378

8223

A9

00

 

 

LDA

#0

 

0379

8225

8D

49

A6

 

STA

PARNR

 

0380

8228

8D

33

A6

 

STA

SCR3

 

0381

822B

20

08

82

PM1

JSR

PSHOVE

 

0382

822E

20

1B

8A

PARFIL JSR

INCHR

 

0383

8231

C9

2C

 

 

CMP

#','

;VALID DELIMETERS - ,

0384

8233

F0

04

 

 

BEQ

M21

 

0385

8235

C9

2D

 

 

CMP

#'-'

 

0386

8237

D0

11

 

 

BNE

M22

 

0387

8239

A2

FF

 

M21

LDX

#$FF

 

0388

823B

8E

33

A6

 

STX

SCR3

 

0389

823E

EE 49 A6

 

INC

PARNR

 

0390

8241

AE 49 A6

 

LDX

PARNR

 

0391

8244

E0

03

 

 

CPX

#$03

 

0392

8246

D0

E3

 

 

BNE

PM1

 

0393

8248

F0

1D

 

 

BEQ

M24

 

0394

824A

20

75

82

M22

JSR

ASCNIB

 

0395

824D

B0

18

 

 

BCS

M24

 

0396

824F

A2

04

 

 

LDX

#4

 

0397

8251

0E

4A

A6

M23

ASL

P3L

 

0398

8254

2E

4B

A6

 

ROL

P3H

 

0399

8257

CA

 

 

 

DEX

 

 

0400

8258

D0

F7

 

 

BNE

M23

 

0401

825A

0D

4A

A6

 

ORA

P3L

 

0402

825D

8D

4A

A6

 

STA

P3L

 

0403

8260

A9

FF

 

 

LDA

#$FF

 

0404

8262

8D

33

A6

 

STA

SCR3

 

0405

8265

D0

C7

 

 

BNE

PARFIL

 

0406

8267

2C

33

A6

M24

BIT

SCR3

 

0407

826A

F0

03

 

 

BEQ

M25

 

0408

826C

EE 49 A6

 

INC

PARNR

 

0409

826F

C9

0D

 

M25

CMP

#$0D

 

0410

8271

18

 

 

 

CLC

 

 

0411

8272

4C

B8

81

 

JMP

RESXAF

 

0412

8275

C9

0D

 

ASCNIB CMP

#$0D

;C/R?

0413

8277

F0

19

 

 

BEQ

M29

 

0414

8279

C9

30

 

 

CMP

#'0'

 

0415

827B

90

0C

 

 

BCC

M26

 

0416

827D

C9

47

 

 

CMP

#'G'

 

0417

827F

B0

08

 

 

BCS

M26

 

0418

8281

C9

41

 

 

CMP

#'A'

 

0419

8283

B0

08

 

 

BCS

M27

 

0420

8285

C9

3A

 

 

CMP

#':'

 

0421

8287

90

06

 

 

BCC

M28

 

0422

8289

C9

30

 

M26

CMP

#'0'

 

0423

828B

38

 

 

 

SEC

 

;CARRY SET - NON HEX

0424

828C

60

 

 

 

RTS

 

 

0425

828D

E9

37

 

M27

SBC

#$37

 

0426

828F

29

0F

 

M28

AND

#$0F

 

 

 

 

 

 

 

 

 

 

Page 107 Page 109
Image 108
Page 107 Page 109
Contents Apple II Original ROM Information Data Qjjj0005A0 FDA9A920 EDFDA98D 4CEDFDA9 8D4CEDFD Page Page Page JI@ Page 001AA0 F3FFE8E1 E8E8EFEB FFFFE0FF Ffefeeef 001AC0 FFFFE1E1 EFEEE7E8 EEE7F3FB FBEEE1EF001AE0 E8EEE7E8 Efefeeef Eeefeeee Efeeeeee 001DB0 9CDD9CDE DD9EC3DD Cfcacdcb 00479AAD 001FB0 Ffffffff FFFF2071 E14CBFEF 2003EEA9 Page DDBAF9F0 0DBDBAF9 FA60FFFF02E61FBD JJJ 60FFFFFF .JJAEAEA8AD Page Page Return Page System Monitor Copyright LOC0LOC1 BaslMask 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 Save BRTBL,XLSR Prepare Carry for BC, BNC Stat LDA R0L JSR STAT2 Push LOW PC Byte VIA R12 LDA IN,Y CMPBNE Nomove JSRMloop DCRBNZ Mloop RTNINR BNCBNZ BM1Example Load IndirectStore Indirect Load DOUBLE-BYTE IndirectStore DOUBLE-BYTE Indirect POP IndirectStore POP Indirect ACC SubtractPOP DOUBLE-BYTE Indirect Compare BF A0 SET $A0BFLOOP1 SUB BNC LOOP1Return to 6502 Mode DecrementLOOP2 BNZ LOOP2Branch if no Carry Branch if Carry SETBranch if Plus LOOP3 SUBBranch if Minus ONE Branch if not Minus ONEBreak Return from Sweet 16 SubroutineLDA #ADRH STA IND+1 LDA OPTBL,XSTA IND JMP Page Page Sweet 16 Introduction Page Source DSP Print Dbload Sweet REM Ctrl DInput Enter String a $ , a $ NVAPoke 776 , a REM Poke Destination Print Print GotoCall -605 Return REM XAM8 in Monitor SweetMINI-ASSEMBLER BaumMneml MnemrSBC PCL Form ADDR-PC-2 JSR Cout Position FORM7 STX A1H Save Index ORG CLCSTA BNENorm LDA EXP1 ZERO? Shift Dividend Left Floating Point Package Floating Point Representation LOWStored High LOW EXP MantissaFloating Point Representation Examples Number Exponent MantissaFloating Point Subroutine Descriptions Page Page Page Page STY Init MANT1 LDY STYCalling Sequence HIGH-ORDERPage Page Page Page Page Page Seeeeeee MmmmmmmmFsub 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 YES,RETURN with MANT1 Normalized Right Shift MANT1 or Swap with MANT2 on CarryCMP AddendNormx BCC Norm If EXEN, Normalize PRODUCT, Else Complement Errata for Rankins Floating Point Routines LDX Load X for High Byte of ExponentLDA STA LOG FaddFsub FmulPage Mantissa MOD 9/76 Load X for Later M2MHL Contin 1EAD LFA LDA Z,X L2E DCM RTLOG1 MdendNormx Object Code Dump Page Tapdel HsbdryToutfl LstcomOutvec Urcvec=UBRKVC =UIRQVCTAX ADCORA Stocom STABPL HASHUS+2 Restore Except A,F BEQ STXCPX JMPExwrap RTS Chksad PHPOutxah PHA TXANibasc 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 Dftxfr LDX Newdev LDALDA Toutfl 8BFF 0D Msfirst Bufadh DdrdigLOADT2 STA Mode BNE Lcerr Last Char not Kgettr LDA H8DFF BCC PACKT3 Dumpt DUMPT1 TXADMPT1A LDA DUMPT4 LDYOutbth LDX Register Name Patch Outcht STXHS Tape Boundary Rockwell International UdrahUddra NowlnOldlen LengthMovad TMASK1 =MOVADCurpos ChecksumTabuff TABUF2Write Edge Detect Control not Used Because KB CRB EQSDB TO,EQS CFD2A0A0A0A0SEI Disable Interrupt RS6 JSR Crlow Clear Display E1AC Have Valid Command Nxtadd TYA Space CommFor LOAD1A LDALOADK5 LDX JMP LOADK5 Next E46A EE INC Bkflg SET FLG Outcks LDA OUTCK1 PHADumpta LDX DUMPT1 LDAE5EA TOGTA1 LDA TOGTA2 LDA BCC JD3 MSG Whereo LDY ANY Other CPYSTA Outflg Output PHA Outall PHAROL Priflg Restore FLG Wrax JSR Numa EAA3 CA DEX Memerr JSR STA STIY+2 Dehalf LDA EC5E 4A LSR Only ROW Onekey LDA Debkey LDXED3B GET a Char from Tape Subroutine Edba LSR Cpiy Make Room for MSB Outtty PHA OUTD1A CPX OUTD2A TXAOUTDD1 PHA LDA First Chip Select Prndot LDA LDA #PRTIME/256 Start T2 for 1.7 Msec BIT Imask See if DOT is SET NEW Print ROW Newcol LDACkbuff LDA Bkcksm LDAOUTTA1 PHA OUTTA2 LDXF2E1 3E7E7F3E7F7FCOL0 Zero Leftmost ColumnDB BGYU76HN Rtmode Getfmt TAXMNNDX1 LSR MNNDX2 LSRPRADR2 LDA PLAPRADR4 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 ROM Table FB46 8A9AAABACADAStartm JSR Rdaddr LDY Tryjmp LDA IMMED1 LDXOPCMP1 LDA Brnchc JMPConvrt LDA FORMD2 LDX Brcomp LDACompbr LDX Backwd LDA Forwrd LDAMATCH1 JMP Curead TXAPATCH4 LDX CURPO2 Dont do Anything if 8D PATC15 JSR Crlf Decode Command Addblk ADDS1ABkcksm BrcompCRA Goerr Namo E8CF NAMO1 RD2 EA5D RD1 AIM 65 Microcomputer Monitor Program Listing E6ACTable of Contents AIM 65 Microcomputer Basic Language Reference ManualIntroduction Installing Basic in the AIM ROM Installation Procedure Entering BasicMemory SIZE? WIDTH?Exiting Basic Reentering BasicBasic Cursor Printer ControlGetting Started with Basic Basic Command SET ASCCHR$ Direct and Indirect Commands Direct Commands Indirect CommandsOperating on Programs and Lines Listing a ProgramDeleting a Line Replacing a LineDeleting a Program List Printing DataPrint ONE Half Equals 1/2 Number FormatNumber Output Format Variables Assigning Variables with AN Input Statement Input RVariable Names PSTG$ Print A, A*2 LET Z=7 Print Z, Z-AReserved Words Program Using Relations RemarksRelational Tests Input BLooping Square Root ProgramAN Improved Square Root Program Print NsqrnAnother Square Root Program Print Nsqrn Next NCOUNT-BACKWARD Program Some Other Looping OperationsPrint What is the Number Print I,J Next Next JMatrix Operations Sort ProgramPrint BAD GUESS, TRY Again Restore Input NPrint Must be Integer Stopping a ProgramStrings $=ROCKWELL R6500 Print A$ Rockwell R6500LEN Function Print LENA$,LENMICROCOMPUTERRIGHT$ Function MID$ FunctionPrint B$ Basic for Rockwell R6500 Print C$ Basic FOR-ROCKWELL-R6500 VAL and Strs FunctionsCHR$ Function Data AIM 65,DOGAdditional String Considerations Name Example PURPOSE/USE DIMInput Input X$ Print Print X$Operators Symbol Sample Statement ESCCntl Print Print X/1.3Symbol Sample Statement PURPOSE/USE NegationRelational Operators Not If not Q3 then Operator Argument Result NotCommands Print Intruder AlertAlert Statement SYNTAX/FUNCTION Example ClearStatement SYNTAX/FUNCTION FRE Statement SYNTAX/FUNCTION ListStatement SYNTAX/FUNCTION Load Statement SYNTAX/FUNCTION NEWStatement SYNTAX/FUNCTION Example RUN Statement SYNTAX/FUNCTION Example SaveProgram Statements Statement SYNTAX/FUNCTION Example DEFStatement SYNTAX/FUNCTION DIM Statement SYNTAX/FUNCTION ENDStatement SYNTAX/FUNCTION For Statement SYNTAX/FUNCTION Gosub Statement SYNTAX/FUNCTION GotoStatement SYNTAX/FUNCTION IF...GOTO Statement SYNTAX/FUNCTION IF...THENIf X0 then Print ERROR, X Negative Goto Example Statement SYNTAX/FUNCTION LETStatement SYNTAX/FUNCTION Next Statement SYNTAX/FUNCTION ON...GOSUBStatement SYNTAX/FUNCTION Restore Symbol SYNTAX/FUNCTION WaitExample Restore Return Statement SYNTAX/FUNCTION ReturnStatement SYNTAX/FUNCTION Input Statement SYNTAX/FUNCTION POSStatement SYNTAX/FUNCTION Print Print Value ISAStatement SYNTAX/FUNCTION Read Statement SYNTAX/FUNCTION SPCStatement SYNTAX/FUNCTION TAB String Functions Statement SYNTAX/FUNCTION ASCStatement SYNTAX/FUNCTION LEFT$ Statement SYNTAX/FUNCTION LENStatement SYNTAX/FUNCTION MID$ Statement SYNTAX/FUNCTION RIGHT$Arithmetic Functions Statement SYNTAX/FUNCTION ABS Statement SYNTAX/FUNCTION ATNStatement SYNTAX/FUNCTION COS Statement SYNTAX/FUNCTION EXPStatement SYNTAX/FUNCTION Example SGN Print SgnxStatement SYNTAX/FUNCTION Example SIN Print SinxError Messages ?XX ErrorInverse Hyperbolic Secant TAB, SPC Space HintsPRINTX,Y,Z Storage Allocation Information Speed HintsThis is Probably the Most Important Speed Hint Converting Basic Programs not Written for AIM 65 BasicOLD AIM OLDAssembly Language Subroutines Ascii Character Codes DecimalNUL SOHAddress Content $AEInputnumbern PrintxRecording on Cassette Using the Basic Save Command RUN NUMBER?Storing AIM 65 Basic Programs on Cassette Cassette Operations Using the AIM 65 Editor OUT=T F=OUT=T F=FNAME T= IN=ATN Implementation Entered by Alter Memory MOF9C 0FACWIDTH? Bytes Free AIM 65 Basic Saving ATN Object Code on Cassette
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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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