This page (revision-105) was last changed on 03-Feb-2023 15:21 by Florian Dingler 

This page was created on 07-Mar-2010 22:14 by Florian Dingler

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Page revision history

Version Date Modified Size Author Changes ... Change note
105 03-Feb-2023 15:21 20 KB Florian Dingler to previous
104 01-May-2020 19:14 20 KB Florian Dingler to previous | to last
103 02-Mar-2020 17:35 20 KB Florian Dingler to previous | to last
102 01-Mar-2020 23:22 19 KB Florian Dingler to previous | to last
101 15-Apr-2019 20:59 19 KB Florian Dingler to previous | to last

Page References

Incoming links Outgoing links
Memory Map
Memory Map

Version management

Difference between version and

At line 3 added 2 lines
[Differences Atari 400/800 - 1200XL - 600/800XL|DiffOldOs2XL]
At line 4 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 28 changed one line
|30|$001E|[PBUFSZT]| |A
|30|$001E|[PBUFSZ]| |A
At line 32 changed 3 lines
|33|$0021|[PTIMOT]| |
|34|$0022|[PTIMOT]| |
|35|$0023|[PTIMOT]| |
|33|$0021|[ICDNOZ]| |
|34|$0022|[ICCOMZ]| |
|35|$0023|[ICSTAZ]| |
At line 126 changed 18 lines
|212-217|$00D4-$00D9|[FR0]| |
|218-223|$00D1-$00DF|[FRE]| |
|224-229|$00E0-$00E5|[FR1]| |
|230-235|$00E6-$00EB|[FR2]| |
|236|$00EC|[FRX]| |
|237|$00ED|[EEXP]| |
|238|$00EE|[NSIGN]| |
|239|$00EF|[ESIGN]| |
|240|$00F0|[FCHRFLG]| |
|241|$00F1|[DIGRT]| |
|242|$00F2|[CIX]| |
|243,244|$00F3,$00F4|[INBUFF]| |
|245,246|$00F5,$00F6|[ZTEMP1]| |
|247,248|$00F7,$00F8|[ZTEMP4]| |
|249,250|$00F9,$00FA|[ZTEMP3]| |
|251|$00FB|[RADFLG]| |
|252,253|$00FC,$00FD|[FLPTR]| |
|254,255|$00FE,$00FF|[FPTR2]| |
|212-217|$00D4-$00D9|[FR0]|Floating point register zero; holds a six-byte internal form of the FP number|
|218-223|$00D1-$00DF|[FRE]|FP extra register|
|224-229|$00E0-$00E5|[FR1]|Floating point register one; holds a six-byte internal form of the FP number as does FR0|
|230-235|$00E6-$00EB|[FR2]|FP register two|
|236|$00EC|[FRX]|FP spare register|
|237|$00ED|[EEXP]|The value of E (the exponent)|
|238|$00EE|[NSIGN]|The sign of the FP number|
|239|$00EF|[ESIGN]|The sign of the exponent|
|240|$00F0|[FCHRFLG]|The first character flag|
|241|$00F1|[DIGRT]|The number of digits to the right of the decimal|
|242|$00F2|[CIX]|Character (current input) index. Used as an offset to the input text buffer pointed to by INBUFF below.|
|243,244|$00F3,$00F4|[INBUFF]|Input ASCII text buffer pointer|
|245,246|$00F5,$00F6|[ZTEMP1]|Temporary register|
|247,248|$00F7,$00F8|[ZTEMP4]|Temporary register|
|249,250|$00F9,$00FA|[ZTEMP3]|Temporary register|
|251|$00FB|[RADFLG]|Also called DEGFLG. When 0 all functions are performed in radians; when set to 6, they are done in degrees|
|252,253|$00FC,$00FD|[FLPTR]|Points to the user's FP number|
|254,255|$00FE,$00FF|[FPTR2]|Pointer to the user's second FP operation.|
At line 145 changed 2 lines
%%commentbox [TOP|Memory Map#Page 0] %%
!Page 1
%%commentbox [^|Memory Map#Page0] %%
!Page 1
At line 150 changed one line
%%commentbox [TOP|Memory Map#Page 0] %%
%%commentbox [^|Memory Map#Page 0] %%
At line 152 changed 2 lines
||adress||hexaddress||NAME||description||OS
|512,513|$0200,$0201|[VDSLST]| |
||address||hexaddress||NAME||description||OS
|512,513|$0200,$0201|[VDSLST]|Vector to Display List Interrupt routine |
At line 170 changed 2 lines
|546,547|$0222,$0223|[VVBLKI]| |
|548,549|$0224,$0225|[VVBLKD]| |
|546,547|$0222,$0223|[VVBLKI]|Vector to Vertical Blank I_MMEDIATE Routine|
|548,549|$0224,$0225|[VVBLKD]|Vector to Vertical Blank D_EFERRED Routine|
At line 180 changed 2 lines
|560,561|$0230,$0231|[SDLSTL],[SDLSTH]| |
|562|$0233|[SSKCTL]| |
|560,561|$0230,$0231|[SDLSTL],[SDLSTH]|Shadow Pointer to Display List|
|562|$0232|[SSKCTL]| |
At line 184 changed 3 lines
|564|$0234|[LPENH]| |
|565|$0235|[LPENV]| |
|566,567|$0236,$0237|[BRKKEY]|Break key Interrupt vector|OS B/X?
|564|$0234|[LPENH]|Shadow Light Pen Horizontal Value|
|565|$0235|[LPENV]|Shadow Light Pen Vertical Value |
|566,567|$0236,$0237|[BRKKY]|Break key Interrupt vector|OS B/X?
At line 214 changed 25 lines
|623|$026F|[GPRIOR]| |
|624|$0270|[PADDL0]| |
|625|$0271|[PADDL1]| |
|626|$0272|[PADDL2]| |
|627|$0273|[PADDL3]| |
|628|$0274|[PADDL4]| |
|629|$0275|[PADDL5]| |
|630|$0276|[PADDL6]| |
|631|$0277|[PADDL7]| |
|632|$0278|[STICK0]| |
|633|$0279|[STICK1]| |
|634|$027A|[STICK2]| |
|635|$027B|[STICK3]| |
|636|$027C|[PTRIG0]| |
|637|$027D|[PTRIG1]| |
|638|$027E|[PTRIG2]| |
|639|$027F|[PTRIG3]| |
|640|$0280|[PTRIG4]| |
|641|$0281|[PTRIG5]| |
|642|$0282|[PTRIG6]| |
|643|$0283|[PTRIG7]| |
|644|$0284|[STRIG0]| |
|645|$0285|[STRIG1]| |
|646|$0286|[STRIG2]| |
|647|$0287|[STRIG3]| |
|623|$026F|[GPRIOR]|Shadow of [PRIOR] |
|624|$0270|[PADDL0]|Shadow Paddle 0|
|625|$0271|[PADDL1]|Shadow Paddle 1|
|626|$0272|[PADDL2]|Shadow Paddle 2|
|627|$0273|[PADDL3]|Shadow Paddle 3|
|628|$0274|[PADDL4]|Shadow Paddle 4 (nur 400/800)|
|629|$0275|[PADDL5]|Shadow Paddle 5 (nur 400/800)|
|630|$0276|[PADDL6]|Shadow Paddle 6 (nur 400/800)|
|631|$0277|[PADDL7]|Shadow Paddle 7 (nur 400/800)|
|632|$0278|[STICK0]|Shadow Stick 0|
|633|$0279|[STICK1]|Shadow Stick 1|
|634|$027A|[STICK2]|Shadow Stick 2 (nur 400/800)|
|635|$027B|[STICK3]|Shadow Stick 3 (nur 400/800)|
|636|$027C|[PTRIG0]|Shadow Paddle Trigger 0|
|637|$027D|[PTRIG1]|Shadow Paddle Trigger 1|
|638|$027E|[PTRIG2]|Shadow Paddle Trigger 2|
|639|$027F|[PTRIG3]|Shadow Paddle Trigger 3|
|640|$0280|[PTRIG4]|Shadow Paddle Trigger 4 (nur 400/800)|
|641|$0281|[PTRIG5]|Shadow Paddle Trigger 5 (nur 400/800)|
|642|$0282|[PTRIG6]|Shadow Paddle Trigger 6 (nur 400/800)|
|643|$0283|[PTRIG7]|Shadow Paddle Trigger 7 (nur 400/800)|
|644|$0284|[STRIG0]|Shadow Stick Trigger 0|
|645|$0285|[STRIG1]|Shadow Stick Trigger 1|
|646|$0286|[STRIG2]|Shadow Stick Trigger 2 (nur 400/800)|
|647|$0287|[STRIG3]|Shadow Stick Trigger 3 (nur 400/800)|
At line 320 changed one line
%%commentbox [TOP|Memory Map#TOP] %%
%%commentbox [^|Memory Map#TOP] %%
At line 370 changed one line
%%commentbox [TOP|Memory Map#Page 0] %%
%%commentbox [^|Memory Map#Page 0] %%
At line 376 changed one line
%%commentbox [TOP|Memory Map#Page 0] %%
%%commentbox [^|Memory Map#Page 0] %%
At line 378 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 387 changed one line
%%commentbox [TOP|Memory Map#Page 0] %%
%%commentbox [^|Memory Map#Page 0] %%
At line 389 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 394 added one line
%%commentbox [^|Memory Map#Page 0] %%
At line 393 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 405 added one line
%%commentbox [^|Memory Map#Page 0] %%
At line 403 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 409 added one line
|43234|$A8E2| |[shows revision of BASIC|How to find the revision number of Atari Basic]|
At line 417 added one line
%%commentbox [^|Memory Map#Page 0] %%
At line 414 changed 21 lines
|53248|$D000|[HPOSP0],[M0PF]| |both
|53249|$D001|[HPOSP1],[M1PF]| |both
|53250|$D002|[HPOSP2],[M2PF]| |both
|53251|$D003|[HPOSP3],[M3PF]| |both
|53252|$D004|[HPOSM0],[P0PF]| |both
|53253|$D005|[HPOSM1],[P1PF]| |both
|53254|$D006|[HPOSM2],[P2PF]| |both
|53255|$D007|[HPOSM3],[P3PF]| |both
|53256|$D008|[SIZEP0],[M0PL]| |both
|53257|$D009|[SIZEP1],[M1PL]| |both
|53258|$D00A|[SIZEP2],[M2PL]| |both
|53259|$D00B|[SIZEP3],[M3PL]| |both
|53260|$D00C|[SIZEM],[P0PL]| |both
|53261|$D00D|[GRAFP0],[P1PL]| |both
|53262|$D00E|[GRAFP1],[P2PL]| |both
|53263|$D00F|[GRAFP2],[P3PL]| |both
|53264|$D010|[GRAFP3],[TRIG0]| |both
|53265|$D011|[GRAFM],[TRIG1]| |both
|53266|$D012|[COLPM0],[TRIG2]| |both
|53267|$D013|[COLPM1],[TRIG3]| |both
|53268|$D014|[COLPM2],[PAL]| |both
|53248|$D000|[HPOSP0],[M0PF|HPOSP0]| |both
|53249|$D001|[HPOSP1],[M1PF|HPOSP1]| |both
|53250|$D002|[HPOSP2],[M2PF|HPOSP2]| |both
|53251|$D003|[HPOSP3],[M3PF|HPOSP3]| |both
|53252|$D004|[HPOSM0],[P0PF|HPOSM0]| |both
|53253|$D005|[HPOSM1],[P1PF|HPOSM1]| |both
|53254|$D006|[HPOSM2],[P2PF|HPOSM2]| |both
|53255|$D007|[HPOSM3],[P3PF|HPOSM3]| |both
|53256|$D008|[SIZEP0],[M0PL|SIZEP0]| |both
|53257|$D009|[SIZEP1],[M1PL|SIZEP1]| |both
|53258|$D00A|[SIZEP2],[M2PL|SIZEP2]| |both
|53259|$D00B|[SIZEP3],[M3PL|SIZEP3]| |both
|53260|$D00C|[SIZEM],[P0PL|SIZEM]| |both
|53261|$D00D|[GRAFP0],[P1PL|GRAFP0]| |both
|53262|$D00E|[GRAFP1],[P2PL|GRAFP1]| |both
|53263|$D00F|[GRAFP2],[P3PL|GRAFP2]| |both
|53264|$D010|[GRAFP3],[TRIG0|GRAFP3]| |both
|53265|$D011|[GRAFM],[TRIG1|GRAFM]| |both
|53266|$D012|[COLPM0],[TRIG2|COLPM0]| |both
|53267|$D013|[COLPM1],[TRIG3|COLPM1]| |both
|53268|$D014|[COLPM2],[PAL|COLPM2]| |both
At line 440 changed one line
|53274|$D01A|[COLBAK]| |both
|53274|$D01A|[COLBK]| |both
At line 447 removed one line
|53504-53759|$D100-$D1FF| |unused and unusable|
At line 454 added 4 lines
%%commentbox [^|Memory Map#Page 0] %%
|53504-53759|$D100-$D1FF| |reserved for future use|B
%%commentbox [^|Memory Map#Page 0] %%
At line 450 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 460 changed 3 lines
|53769|$D209|[STIMER],[KBCODE]| |
|53770|$D20A|[SKREST],[RANDOM]| |
|53771|$D20B|[POTGO],[RANDOM]| |
|53769|$D209|[STIMER|KBCODE],[KBCODE]| |
|53770|$D20A|[SKREST],[RANDOM|SKREST]| |
|53771|$D20B|[POTGO]| |
At line 464 changed 3 lines
|53773|$D20D|[SEROUT],[SERIN]| |
|53774|$D20E|[IRQEN],[IRQST]| |
|53775|$D20F|[SKCTL],[SKSTAT]| |
|53773|$D20D|[SEROUT],[SERIN|SEROUT]| |
|53774|$D20E|[IRQEN],[IRQST|IRQEN]| |
|53775|$D20F|[SKCTL],[SKSTAT|SKCTL]| |
At line 478 added one line
%%commentbox [^|Memory Map#Page 0] %%
At line 470 changed one line
||adress||hexaddress||NAME||description||OS
||address||hexaddress||NAME||description||OS
At line 487 added one line
%%commentbox [^|Memory Map#Page 0] %%
At line 481 changed one line
|54274,54275|$D402,$D403|[DLISTL],[DLISTH]| |
|54274,54275|$D402,$D403|[DLISTL],[DLISTH|DLISTL]| |
At line 493 changed one line
|54287|$D40F|[NMIRES],[NMIST]| |
|54287|$D40F|[NMIST],[NMIRES|NMIST]| |
At line 507 added 13 lines
%%commentbox [^|Memory Map#Page 0] %%
||address||hexaddress||NAME||description||OS
| |$D500-$D5FF| |Any read or write to an address in this range enables the cartridge control line [CCNTL] on the cartridge interface (same as ATARI 400 and ATARI 800)|B
%%commentbox [^|Memory Map#Page 0] %%
||address||hexaddress||NAME||description||OS
| |$D600-$D6FF| |reserved for future use|B
%%commentbox [^|Memory Map#Page 0] %%
||address||hexaddress||NAME||description||OS
| |$D700-$D7FF| |reserved for future use|B
%%commentbox [^|Memory Map#Page 0] %%
At line 497 changed 2 lines
||adress||hexaddress||NAME||description||OS
|55296|$D800|[AFP]| |
||address||hexaddress||NAME||description||OS
|55296|$D800|[AFP]|ASCII to Floating Point (FP) conversion|
|55526|$D8E6|[FASC]|FP value to ASCII conversion|
|55722|$D9AA|[IFP]|Integer to FP conversion|
|55762|$D9D2|[FPI]|FP to integer conversion|
|55876|$DA44|[ZFR0]|Clear [FR0] at 212 to 217 ($d$-$DB) by setting all bytes to zero|
|55878|$DA46|[ZF1]|Clear the FP number from [FR1], locations 224 to 229 ($E0 to $E5), by setting all bytes to zero.|
|55904|$DA60|[FSUB]|FP subtract routine, the value in [FR0] minus the value in [FR1].|
|55910|$DA66|[FADD]|FP addition routine; [FR0] plus [FR1].|
|56027|$DADB|[FMUL]|FP multiplication routine; [FR0] times [FR1].|
|56104|$DB28|[FDIV]|FP division routine; [FR0] divided by [FR1].|
|56640|$DD40|[PLYEVL]|FP polynomial evaluation.|
|56713|$DD89|[FLD0R]|Load the FP number into [FR0] from the 6502 X,Y registers.|
|56717|$DD8D|[FLD0P]|Load the FP number into [FR0] from user routine, using [FLPTR] at 252 ($FC).|
|56728|$DD98|[FLD1R]|Load the FP number into [FR1] from the 6502 X,Y registers.|
|56732|$DD9C|[FLD1P]|Load the FP number into [FR1] from user program, using [FLPTR].|
|56743|$DDA7|[FSTOR]|Store the FP number into the 6502 X,Y registers from [FR0].|
|56747|$DDAB|[FSTOP]|Store the FP number from [FR0], using [FLPTR].|
|56758|$DDB6|[FMOVE]|Move the FP number from [FR0] to [FR1].|
|56768|$DDC0|[EXP]|FP base e exponentiation.|
|56780|$DDCC|[EXP10]|FP base 10 exponentiation.|
|57037|$DECD|[LOG]|FP natural logarithm.|
|57041|$DED1|[LOG10]|FP base 10 logarithm.|
At line 545 added 8 lines
|57344|$E000| |Standard ATARI character set, beginning with punctuations and numbers|
|57600|$E100| |capital letters|
|57856|$E200| |special graphics|
|58112|$E300| |lower case letters|
|58367|$E3FF| |end of ATARI standard charset|
| | | | |
|58368|$E400|[EDITRV]|Screen editor (E:) entry point table|
|58348|$E410|[SCRENV]|Display handler (television screen) (S:)|
At line 501 changed one line
| | | | |
|58416|$E430|[PRINTV]|Printer handler (P:)|
|58432|$E440|[CASETV]|Cassette handler (C:)|
|58448|$E450|[DISKIV]|Disk handler initialization vector, initialized to 60906 ($EDEA)|
|58451|$E453|[DSKINV]|Disk handler (interface) entry; checks the disk status. Initialized to 60912 ($EDF0).|
|58454|$E456|[CIOV]| |
|58457|$E459|[SIOV]| |
|58460|$E45C|[SETVBV]| |
|58463|$E45F|[SYSVBV]| |
|58466|$E462|[XITVBV]|Exit from the VBLANK routine|
|58469|$E465|[SIOINV]|SIO utility initialisation, OS use only|
|58472|$E468|[SENDEV]|Send enable routine, OS use only|
|58475|$E46B|[INTINV]|Interrupt handler initialisation, OS use only|
|58478|$E46E|[CIOINV]|CIO utility initialisation, OS Use only|
|58481|$E471|[BLKBDV]|Blackbaord Mode Entry|
At line 512 changed 2 lines
| | | | |
|65528|$FFF8|[CHKSUN]| |
| | | | |
| | | | |to be completed ...
| | | | |
|59310|$E7AE|[SYSVBL]|X|
|59345|$E7D1|[SYSVBL]|A|
| | | | |
|65527|$FFF7| |[can be used to identify OS version|OS Versions]|
|65528|$FFF8|[CHKSUN]|[can be used to identify OS version|OS Versions]|
This page (revision-105) was last changed on 03-Feb-2023 15:21 by Florian Dingler  Top