| TOOL NAME: EXETOMEM
TECHNOLOGY: Electrical
FUNCTION: Simulator
Convert VAX-MACRO.EXE or Motorola sformat files into ASCII files
to load into DECSIM RAMs.
GENERAL DESCRIPTION:
The EXETOMEM program serves as the interface between a user
written macro program and DECSIM. It converts VAX-MACRO.exe or
Motorola sformat files into ASCII files within the format
required by the DECSIM load/text command. These output files are
used to load DECSIM structural memory models with the user's
macro program.
STATUS: In use
AVAILABILITY: To request, send mail to ECADSR::HOTLINE
INTERFACES: DECSIM
CPU/OPERATING SYSTEM: VMS
SOURCE LANGUAGE: VAX C
ADVANTAGES OF TOOL:
- Use of assembly-language written programs to be converted into DECSIM
Mem files to serve the purpose of diagnostics, ROM booting, and
testing memory read and write.
- Ablity to generate 7-bit ECC (Error Checking and Correcting Codes)
on every 32-bit data word.
- Ablity to generate parity memory cells with odd, even, or none.
- Ablity of generating parity bits on every 1, 2, or 4 bytes.
- Ablity to allow user to specify location of parity bits
(Most Significant Bit, Least Significant Bit or separate memory cells).
- Ablity to format memory cells in different widths and partitions.
LIMITATIONS OF TOOL:
- The width of the data memory cells are 1, 2, 4, 8, 16, 32 bits
- All data memory cells are assumed to be of the same width
- Does not currently supported Dynamic Rams, but a future version will
- Parity bits are generated on 8-bit increments of the data
- Parity bits are attached either to the MSB or LSB of each memory
cell and cannot be inserted in the middle of the data sequence.
- A 7-bit ECC will be generated on a 32 bit field.
- ECC will always lie in separate cells or attached to a
32-bit data word.
RESPONSIBLE ORGANIZATION:
ECAD, send mail to ECADSR::HOTLINE
TRAINING: NONE
DOCUMENTATION:
A chapter in the "ECAD System Simulation Process" manual covers
EXETOMEM. To order a copy, send mail to ECADSR::DOCUMENT
specifying your mail stop.
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