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- ASxxxx Cross Assemblers, Version 1.1, June 1990
-
- Submitted by Alan R. Baldwin,
- Kent State University, Kent, Ohio
-
- Operating System: TSX+, RT-11, MS/DOS, PDOS
- or other supporting K&R C.
-
- Source Langauge: C
-
- Abstract:
-
- The ASxxxx assemblers are a series of microprocessor assem-
- blers written in the C programming language. This collection
- contains cross assemblers for the 6800(6802/6808), 6801(hd6303),
- 6804, 6805, 6809, 6811, 8085(8080), and z80(hd64180) micropro-
- cessors. Each assembler has a device specific section which
- includes: (1) device description, byte order, and file exten-
- sion information, (2) a table of assembler general directives,
- special directives, assembler mnemonics and associated 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, and
- (6) include-file 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) process absolute, relative, concatenated, and
- overlay attributes in data and program sections, (4) perform
- byte and word program-counter relative (pc or pcr) addressing
- calculations, (5) define absolute symbol values at link time,
- (6) define absolute area base address values at link time, (7)
- produce Intel Hex or Motorola S19 output file, and (8) produce a
- map of the linked memory image.
-
- The assemblers and linker have been tested using DECUS C
- under TSX+ and RT-11, PDOS C V5.4b, and with TurboC V1.5 under
- MS/DOS. Complete source code and documentation for the assem-
- blers and linker is included with the distribution. Addi-
- tionally, 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 in-
- cluded as working examples of use of these assemblers.
- .C;
- AUTHORS: Jan La