## Documentation for the
ASxxxx Assemblers and
ASlink Relocating Linker

####

    ASxxxx Cross Assemblers, Version 5.50.5, January 2026

       The  ASxxxx  assemblers are a series of microprocessor assem-
    blers written in the C programming  language.   This  collection
    contains   cross   assemblers   for   the  1802,  S2650,  SC/MP,
    4040(4004),  MPS430,   6100,   61860,   6500,   6800(6802/6808),
    6801(6803/HD6303),   6804,   6805,   68HC(S)08,   6809,  68HC11,
    68HC(S)12, 68HC16, 68CF 68K, 740, 78K/0,  78K/0S,  8008,  8008S,
    8048(8041/8022/8021),  8051,  8085(8080),  AT89LP, 8X300(8X305),
    COP4,  COP8,  DS8XCXXX,  AVR,  EZ8,  EZ80,  F2MC8L/FX,  F8/3870,
    GameBoy(Z80),  H8/3xx,  Cypress  PSoC(M8C),  PDP11,  PIC, Rabbit
    2000/3000,   RS08,   ST6,   ST7,   ST8,    SX,    TLCS90,    Z8,
    Z80(HD64180,ZXN,8080,8085),  and  Z280  series  microprocessors.

#### `... The Assembler Description
... The Macro Processor Description
... The Linker Description
... Assembly and Linking Example
... Building ASxxxx and ASlink
... ASxxxx Utility Programs
... ASxxxx Notes and Tips
... ASxxxx Change Log
... ASxxxx Documentation as a Single HTML File V5.50.5
... ASxxxx Documentation as a Single TEXT File V5.50.5
... ASxxxx Documentation as a Single RTF File V5.50
... ASxxxx Documentation as a Single PDF File V5.50
... Contributors
... Exit the ASxxxx Documentation
... The Assemblers:
`

####

       AS1802    CDP1802 COSMAC
       AS2650    Signetics 2650
       AS4040    Intel 4040 and 4004
       AS430     MSP430  Series Microprocessors
       AS6100    IM6100, HM6100
       AS61860   SC61860
       AS6500    6500 Series Microprocessors
       AS6800    MC6800, MC6802, and MC6808
       AS6801    MC6801 and HD6301
       AS6804    MC6804
       AS6805    MC6805
       AS6808    MC68HC(S)08
       AS6809    MC6809
       AS6811    MC68HC11
       AS6812    MC68HC(S)12
       AS6816    MC68HC16
       AS68CF    ColdFire
       AS68K     68000, 68008, 68010, and 68020
       AS740     740 Series Microprocessors
       AS78K0    Renesas/NEC 78K/0 Series Microprocessors
       AS78K0S   Renesas/NEC 78K/0S Series Microprocessors
       AS8008    8008
       AS8008S   8008 (MCS-8 syntax of SIM-8)
       AS8048    8048, 8041, 8022, and 8021
       AS8051    8051
       AS8085    8085 and 8080
       AS89LP    AT89LP Series Microprocessors
       AS8X300   8X300 and 8X305 Microcontrollers
       AS8XCXXX  DS8xCxxx Series Microprocessors
       ASAVR     AVR Series Microprocessors
       ASCOP4    NS COP400 Series Microprocessors
       ASCOP8    NS COP800 Series Microprocessors
       ASEZ8     EZ8
       ASEZ80    EZ80
       ASF2MC8   Fujitsu F2MC8L/FX Microprocessors
       ASF8      Fairchild F8 / Mostek 3870 Microprocessors
       ASGB      GameBoy(Z80)
       ASH8      H8/3xx
       ASM8C     Cypress PSoC (M8C)
       ASPDP11   PDP-11 Processors
       ASPIC     PIC Series Microprocessors
       ASRAB     Rabbit 2000/3000
       ASRS08    Freescale/NXP RS08 Series Microprocessors
       ASSCMP    SC/MP
       ASST6     STMicroelectronics ST6
       ASST7     STMicroelectronics ST7
       ASST8     STMicroelectronics STM8
       ASTLCS90  Toshiba TLCS90 Series
       ASSX      Ubicom SX Family
       ASZ8      Z8
       ASZ80     Z80, ZXN, HD64180, 8085, and 8080
       ASZ280    Z280, Z180, and Z80

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###### Last Updated: January 2026