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- ************************************************************
- * *
- * APalasm24 *
- * by *
- * Bob Metzler *
- * *
- ************************************************************
-
- This entry, for The famous Fish disk archive (Thanks Fred),is a program
- that I have not seen supported on the Amiga. The ability to generate
- PAL files usable on a PAL programmer or just to learn about PALs in
- general. What is a PAL? A Programmable Array Logic device used to
- replace circuitry on a board, perform logic equations in which multiple
- standard devices (ie 7400 series) would be used.
- I have worked on this program for a LONG time since the source
- didn't even work at all. The code had errors in it and produced incorrect
- results. Also, I removed the IMPLICIT statements since they produced
- erratic results and somtimes crash the Ami. I then decided after I
- found some actual BLOCK DATA TABLE errors to check as many devices as I
- could from Two MMI PAL Handbooks the third and fifth editions.
- The third edition has the flow chart for both the main code and
- the simulation code and I used those to further check out the
- Program by using example PAL files that have fuse maps shown. All
- The examples included cover all the part types this program will
- read in. Palasm24 will do only the following 14 PAL devices.
-
- 12L10, 14L8, 16L6, 18L4, 20C1, 20L10,
- 20X10, 20X8, 20X4, 20L8, 20R8, 20R4
-
- The version of this code is 1.00 as I feel its usable
- for producing .jed files and the other files. The following list
- of files are included in this release and I hope to release the
- palasm20 version when I'm done debugging it. Any requests or bugs
- found I would like to know about it. It's all I ask, I'm trying
- to maintain this code so if you want to modify it do so and
- sent me the bug/fix you proposed so that others will benefit.
- My address is below:
-
- Bob Metzler
- 13515 N.E. 70th St.
- Redmond, Wa. 98052
- Home phone (206)885-9314
-
- These files are included in this release:
-
- apalasm24 - executable for those who don't have AC/FORTRAN
- palasm24.for - the source code for the program
- readme - this file you are reading now
- 4mux.pal - 16L6 example PAL
- 6bitrshift.pal- 20L8 example PAL
- 9bitreg.pal - 20X10 example PAL
- adc.pal - 20X4 example PAL
- barrelroll.pal- 20R8 example PAL
- d4to1mux.pal - 14L8 example PAL
- doctmux.pal - 20L2 example PAL
- encoder.pal - 20R4 example PAL
- mod_encode.pal- 20R6 example PAL
- muloctreg.pal - 20X8 example PAL
- quadmux.pal - 18L4 example PAL
- sixnand.pal - 12L10 example PAL
- sixtmux.pal - 20C1 example PAL
- vidlog.pal - 20L10 example PAL
- template.pal - a template for use in correct syntax for
- writing your own .PAL file
-
- USAGE:
-
- ****************************************************************
- * SET THE STACK FOR 50000 PRIOR TO RUNNING !
- * CODE WILL EXECUTE FASTER OUT OF RAM DISK !
- ****************************************************************
- Execute the following:
-
- apalasm24 filename
-
- One last thing, I would like to thank Absoft personally
- for producing a solid product such as AC/Fortran. I own an
- Amiga 1000 with LUCAS/ FRANCES 4MB combo running at 20MHZ an
- am able to operate both the compiler and debugger with no
- problems. For those of you who don't own AC/Fortran its very
- compatible with 68020/68881 and very fast.
-
- Check out these speeds in my system using the 68020/68881:
-
- Using 'f77 palasm.for' the following is output:
-
- Absoft FORTRAN 77 Compiler Version 2.3
-
- 1: Symbol table complete
- Memory usage:
- Labels 600 bytes
- Symbols 4080 bytes
- Total 52310 bytes
- Excess 52766 bytes
- Source 1506 lines
- 2: Object file complete
- 3: Program file complete: 34032 bytes
- Elapsed time: 0:21 = 4302 lines/minute
-
- Using 'f77 -deksu palasm.for' the following is output:
-
- Absoft FORTRAN 77 Compiler Version 2.3
-
- Symbol table complete
- Memory usage:
- Labels 600 bytes
- Symbols 4080 bytes
- Total 52310 bytes
- Excess 52766 bytes
- Source 1506 lines
- 2: Object file complete
- 3: DEBUG symbol file complete
- 4: Program file complete: 34164 bytes
- Elapsed time: 0:53 = 1704 lines/minute
-
- The only complaint is that the 68020 compiler is not an option
- switch unless you purchase the 020 package from Absoft. The program
- is executable however doesn't produce 68020/68881 code.
-