The Amsterdam Compiler Kit
e867861f6d
Add rules for 8-byte integers to m68020 ncg. Add 8-byte long long to ACK C on linux68k. Enable long-long tests for linux68k. The tests pass in our emulator using musahi; I don't have a real 68k processor and haven't tried other emulators. Still missing are conversions between 8-byte integers and any size of floats. The long-long tests don't cover these conversions, and our emulator can't do floating-point. Our build always enables TBL68020 and uses word size 4. Without TBL68020, 8-byte multiply and divide are missing. With word size 2, some conversions between 2-byte and 8-byte integers are missing. Fix .cii in libem, which didn't work when converting from 1-byte or 2-byte integers. Now .cii and .cuu work, but also add some rules to skip .cii and .cuu when converting 8-byte integers. The new rule for loc 4 loc 8 cii `with test_set4` exposes a bug: the table may believe that the condition codes test a 4-byte register when they only test a word or byte, and this incorrect test may describe an unsigned word or byte as negative. Another rule `with exact test_set1+test_set2` works around the bug by ignoring the negative flag, because a zero-extended word or byte is never negative. The old rules for comparison and logic do work with 8-byte integers and bitsets, but add some specific 8-byte rules to skip libem calls or loops. There were no rules for 8-byte arithmetic, shift, or rotate; so add some. There is a register shortage, because the table requires preserving d3 to d7, leaving only 3 data registers (d0, d1, d2) for 8-byte operations. Because of the shortage, the code may move data to an address register, or read a memory location more than once. The multiplication and division code are translations of the i386 code. They pass the tests, but might not give the best performance on a real 68k processor. |
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| bin | ||
| doc | ||
| emtest | ||
| etc | ||
| examples | ||
| fast | ||
| fcc | ||
| first | ||
| h | ||
| include/_tail_mon | ||
| lang | ||
| lib | ||
| mach | ||
| man | ||
| modules | ||
| plat | ||
| tests/plat | ||
| util | ||
| .appveyor.yml | ||
| .clang-format | ||
| .distr | ||
| .drone.yml | ||
| .hgignore | ||
| .travis.yml | ||
| Action | ||
| build.lua | ||
| CHANGES | ||
| Copyright | ||
| Makefile | ||
| NEW | ||
| README | ||
| TODO | ||
THE AMSTERDAM COMPILER KIT V6.1pre1
===================================
© 1987-2005 Vrije Universiteit, Amsterdam
2018-02-23
INTRODUCTION
============
The Amsterdam Compiler Kit is a complete compiler toolchain consisting of
front end compilers for a number of different languages, code generators,
support libraries, and all the tools necessary to go from source code to
executable on any of the platforms it supports.
This is an early prerelease of the apocryphal version 6.1 release. Not a
lot is supported, the build mechanism needs work, and a lot of things are
probably broken. However, what's there should be sufficient to get things
done and to evaluate how the full 6.1 release should work.
SUPPORT
=======
Languages:
ANSI C, B, Pascal, Modula 2, Basic. K&R is supported via the ANSI C compiler.
Platforms:
pc86 produces bootable floppy disk images for 8086 PCs
linux386 produces ELF executables for PC Linux systems
linux68k produces ELF executables for m68020 Linux systems
linuxppc produces ELF executables for PowerPC Linux systems
linuxmips produces ELF executables for little-endian MIPS32r2 Linux systems
cpm produces i80 CP/M .COM files
rpi produces Raspberry Pi GPU binaries
pdpv7 produces PDP/11 V7 Unix binaries
INSTALLATION
============
The version 5.0 build mechanism has been completely rewritten. Installation
ought to be fairly straightforward.
Requirements:
- an ANSI C compiler. This defaults to gcc. You can change this by setting
the CC make variable.
- flex and yacc.
- GNU make.
- (optionally) ninja; if you've got this, this will be autodetected and give
you faster builds.
- (optionally) the qemu suite: if you have this installed, the build system
will detect it automatically and run the test suites for the supported
architectures. Get both the qemu-system-* platform emulators and the qemu-*
userland emulators (only works on Linux).
- about 115MB free in /tmp (or some other temporary directory).
- about 15MB in the target directory.
Instructions:
- edit the Makefile. There's a small section at the top where you can change
the configuration. Probably the only one you may want to edit is PREFIX,
which changes where the ACK installs to.
- Run:
make
...from the command line. This will do the build.
The make system is fully parallelisable. If you have a multicore system,
install ninja and it'll use all your cores. If you don't have ninja, you
can still use make for parallel builds with:
make -r -j8 # or however many cores you have
...but frankly, I recommend ninja.
- Run:
sudo make install
...from the command line. This will install the ACK in your PREFIX
directory (by default, /usr/local).
The ACK should now be ready to use.
USAGE
=====
Currently I haven't sorted out all the documentation --- it's supplied in the
distribution, but not all of it gets installed yet --- so here is a quickstart
guide.
The main command to use is 'ack'. This invokes the compiler and the linker.
Some useful options include:
-m<platform> build for the specified platform
-o <file> specifies the output file
-c produce a .o file
-c.s produce a .s assembly file
-O enable optimisation (optimisation levels go up to 6)
-ansi compile ANSI C (when using the C compiler)
-v be more verbose (repeatable)
<file> build file
ack figures out which language to use from the file extension:
.c C (ANSI or K&R)
.b the PDP-11 dialect of B
.bas Basic
.mod Modula-2
.ocm Occam 1
.p Pascal
.o object files
.s assembly files
.e ACK intermediate code assembly files
For further information, see the man page (which actually does get
installed, but is rather out of date).
There are some (known working) example programs in the 'examples' directory.
A sample command line is:
ack -mlinux386 -O examples/paranoia.c
GOTCHAS
=======
There are some things you should be aware of.
- Look at plat/<PLATFORMNAME>/README for information about the supported
platforms.
- The library support is fairly limited; for C, it's at roughly the ANSI C
level, and for the other languages it's similar.
- When compiling languages other than C, the ACK will usually look at the
first character of the file. If it's a #, then the file will be run through
the C preprocessor anyway.
- BSD systems may need to up the number of file descriptors (e.g.
'ulimit -n 200') before the ACK will compile.
- The ACK uses its own .o format. You won't be able to mix the ACK's object
files and another compiler's.
- When compiling together multiple B source files, you need to do some extra
work to initialise them properly otherwise your program will crash on
startup; see the ack(1) and abmodules(1) man pages.
- The distribution contains *everything*, including the weird, ancient,
archaic stuff that doesn't work any more and never will, such as the int EM
interpreter and the assembler-linkers. Only some of it builds. Look for
build.lua files.
DISCLAIMER
==========
The ACK is mature, well-tested software, but the environment in which it was
developed for and tested under is rather different from that available on
today's machines. There will probably be little in the way of logical bugs,
but there may be many compilation and API bugs.
If you wish to use the ACK, *please* join the mailing list. We are interested
in any reports of success and particularly, failure. If it does fail for you,
we would love to know why, in as much detail as possible. Bug fixes are even
more welcome.
The ACK is licensed under a BSD-like license. Please see the 'Copyright' file
for the full text.
You can find the mailing list on the project's web site:
http://tack.sourceforge.net/
Please enjoy.
David Given (davidgiven on Github)
dg@cowlark.com
2018-09-18