ASxxxx Cross Assemblers

Bulgarian translation of abstract by Albert Ward.

ASxxxx Cross Assemblers, Version 5.06, May 2013

Submitted by Alan R.  Baldwin, 
Kent State University, Kent, Ohio 

Operating System:  Linux, Windows, MS-DOS 
or other supporting ANSI C.  

Source Langauge:  C 


   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, MPS430,
61860, 6500,  6800(6802/6808),  6801(6803/HD6303),  6804,  6805,
68HC(S)08,     6809,    68HC11,    68HC(S)12,    68HC16,    740,
8048(8041/8022/8021)  8051,  8085(8080),  DS8xCxxx,  AVR,  EZ80,
F2MC8L/FX,  F8/3870,  GameBoy(Z80),  H8/3xx,  Cypress PSoC(M8C),
PIC, Rabbit 2000/3000, asst6, asst7, asst8, Z8, and Z80(HD64180)
series  microprocessors.   Each  assembler has a device specific
section which includes:  (1) device description, byte order, and
file  extension  information,  (2)  a table of assembler general
directives, special directives, assembler  mnemonics  and  asso-
ciated operation codes, (3) machine specific code for processing
the device mnemonics, addressing modes, and special directives. 

   The assemblers have a common device independent section which
handles the details of file input/output, symbol  table  genera-
tion,  program/data  areas,  expression  analysis, and assembler
directive processing.  

   The  assemblers  provide  the following features:  (1) alpha-
betized, formatted symbol table listings, (2) relocatable object
modules, (3) global symbols for linking object modules, (4) con-
ditional assembly directives, (5) reusable  local  symbols,  (6)
include-file  processing,  and  (7)  a  general macro processing

   The  companion program ASLINK is a relocating linker perform-
ing the following functions:  (1) bind multiple  object  modules
into  a  single  memory  image,  (2) resolve inter-module symbol
references,  (3)  resolve  undefined  symbols   from   specified
librarys of object modules, (4) process absolute, relative, con-
catenated, and overlay attributes in data and program  sections,
(5)  perform  byte and word program-counter relative (pc or pcr)
addressing calculations, (6) define absolute  symbol  values  at
link  time, (7) define absolute area base address values at link
time, (8) produce an Intel Hex  record,  Motorola  S  record  or
Tandy  CoCo  Disk  Basic  output  file, (9) produce a map of the
linked memory image, and (10) update the ASxxxx assembler  list-
ing files with the absolute linked addresses and data.  

   The  assemblers  and  linker have been tested using Linux and
DJGPP, Cygwin, Symantec C/C++ V7.2, Borland Turbo C++ 3.0,  Open
Watcom  V1.9,  VC6,  Visual Studio 2005, and Visual Studio 2010.
Complete source code and documentation for  the  assemblers  and
linker  is  included  with the distribution.  Additionally, test
code for each  assembler  and  several  microprocessor  monitors
(ASSIST05  for  the  6805, MONDEB and ASSIST09 for the 6809, and
BUFFALO 2.5 for the 6811) are included as  working  examples  of
use of these assemblers.  

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Last Updated: May 2013