motorola - ПиП МПС / motorola / MC68000 / Distribs / Emulator / BIG-AL

Al,

Below is a list of the mods I have made to the X/E/S68K package.

UNKNOWN request.

DOS exit code. This facility has been added. See RELNOTES.DOC

W.G.THOMPSON's letter.

I have fixed the BR count problem. The change to allow other addressing formats
has also been done, see below.

P.H.TANNER's letter.

The Motorola manual (page 105) clearly states that you may not use < or > in
macro arguments. These characters are reserved to bracket aruments with multiple
parts, commas or spaces e.g. MAC <','> I therefore do not propose to make any
changes in this respect. On his second point there is good news. I have
implemented the INCLUDE directive which will allow users to include other source
files. This will allow at least two ways of having 'libraries' firstly simply
INCLUDE the file containing your library routines in every program you write.
Another way would be to split the library into a bit that defines the addresses
of the routines and a bit that has the code, the latter would reference the
former. Then in any program simply INCLUDE the addr defns and when using the
emulator load the binary for the routines and then the program binary and it
should all work! See RELNOTES.DOC

ELLIS NUCKOLL's letter.

The emulator now pushes the correct PC address onto the stack during exception
processing for 1010 and 1111 exceptions. Please thank Ellis for his excellent
supporting material.

MIKE's letter.

I have fixed the Z flag setting on ADD/SUB instrs. See RELNOTES.DOC

YOUR Letter's.

The emulator no longer complains about '.' as a command. Strictly speaking you
do not leave Trace by entering anything, you should enter a valid command!

BSET/CHG/TST/CLR is no longer so particular about the .B/.L extension. The
emulator decodes them all with no extension.

The emulator now decodes all immediate values in hex.

The TRAP15 function now supports disk file I/O. See RELNOTES.DOC

A mechanism to simulate hardware interrupts has been added. See RELNOTES.DOC

S68K will now generate type S3 records (4 byte addresses) when required.

Character output (only) to the printer port has been added. See RELNOTES.DOC

The assembler now accepts 68020 style addressing formats. See RELNOTES.DOC

The TRAP15 function now supports I/O to serial ports (hi speed input may not
be reliable on all(any) computers!!). See RELNOTES.DOC