Commit graph

60 commits

Author SHA1 Message Date
David Given 784fc67596 Alignment issues mean we can't access 16-bit CP/M structure elements directly. 2019-06-11 22:33:25 +02:00
David Given 0607529df2 Miscellaneous bugfixed and renamings. 2019-06-11 21:33:57 +02:00
David Given a804375560 Miscellaneous byte shaving; you can now choose whether or not you want the CCP
overwritten or not, and cpm_exit() does the right thing.
2019-06-11 20:32:00 +02:00
David Given 3feb79ad0c Simplify the .trp API to make it a bit smaller. 2019-06-11 20:02:03 +02:00
David Given 4e90de00e9 Don't pull in all the trap handlers every time. 2019-06-11 19:47:42 +02:00
David Given f58d7e7d30 Add missing file. 2019-06-11 19:40:46 +02:00
David Given 48a9c48f56 Generate traps procedurally. For some reason they always keep getting pulled
in, though...
2019-06-11 00:12:00 +02:00
David Given ec2ea1feff Add missing file. 2019-06-10 23:57:43 +02:00
David Given d0967e683b Extend the CP/M libsys with a full set of (hopefully correct) 2.2 BDOS calls. 2019-06-10 23:54:23 +02:00
David Given 3f938d651b EM requires 2-alignment in structures, sadly. 2019-06-10 18:33:04 +02:00
George Koehler 84f65f7ce3 Raise _XOPEN_SOURCE from 500 to 700
In OpenBSD, _XOPEN_SOURCE 500 forces _POSIX_C_SOURCE down to 199506,
which hides the declarations of openat() and fdopendir() and causes
compiler warnings.

Don't set _POSIX_C_SOURCE, because _XOPEN_SOURCE may set
_POSIX_C_SOURCE to a different value.
2019-03-22 14:35:07 -04:00
David Given 79a38ecc08 Instead of using parameterised rsts for stack access, add a huge swathe of
automatically built helper tools. Star Trek goes up from 40243 to 40779 bytes,
but should be a lot faster.
2019-02-13 22:45:22 +01:00
David Given 073451dd44
Merge pull request #154 from ccodere/buildfix
Bugfix of compilation on gcc 4.8
2019-02-12 21:51:46 +01:00
carl 664338aa49 Fix compilation issue on C90 compilers (gcc 4.8 was failing to compile with default flags) - updated following comment. 2019-02-13 00:17:45 +08:00
carl c63f527dde Fix compilation issue on C90 compilers (gcc 4.8 was failing to compile with default flags). 2019-02-12 00:46:09 +08:00
David Given 34e9573929 Merge from default. 2019-02-10 23:40:07 +01:00
David Given 666d9a3edb Add stray header. 2019-02-10 12:57:00 +01:00
David Given aa6aefdaa0 Add missing header. 2019-02-10 00:45:09 +01:00
David Given 810afbb5b9 Don't run the floating point tests on i80. 2019-02-09 14:24:31 +01:00
David Given bcc9c16bf7 More z80ex removal. 2019-02-09 13:42:09 +01:00
David Given 343cdf7983 Remove stray z80ex reference. 2019-02-09 13:30:29 +01:00
David Given 19f5ee3399 CP/M sbrk now handles overflow correctly. 2019-02-08 21:43:52 +01:00
David Given 22032575c5 Add a 'disassemble' command to the CP/M emulator. 2019-02-08 20:54:44 +01:00
David Given b47d59aa4a Merge from default. 2019-02-07 23:45:47 +01:00
David Given 8876ddcad2 Build the CP/M tests (which got turned off accidentally). Add a disassembler to
the emulator debugger.
2019-02-07 23:36:45 +01:00
David Given 7473601172 Add the cpm emulator from Cowgol, modified to work with an 8080 emulator rather
than libz80ex; enable tests for cpm.
2019-02-07 22:39:57 +01:00
David Given 5ac280026e Experimentally use rst 1 to optimise frame variable loads. Reduces Star Trek
from 43892 to 43205 bytes.
2019-02-07 00:06:32 +01:00
David Given 64ae1d7583 Move time() into sys; change the name of the variable which controls it. 2018-06-23 19:40:50 +02:00
David Given 66815ff987 Make linux386 work with the new libc layout. 2018-06-23 12:13:33 +02:00
David Given 32c881474e Create a basic and probably wrong common unistd.h, which replaces the plat one.
Made this work with cpm (but nothing else yet).
2018-06-23 11:46:55 +02:00
David Given 94ffa3ba88 libc floating point and stdio floating point can now be turned on and off using
ACKCONF variables.
2018-06-23 00:04:14 +02:00
David Given 9bf1d548fc Rearrange the libc config files, ready for adding new options. 2018-06-22 23:43:15 +02:00
David Given 11854f4dfe Ansify and warning fix. 2018-06-17 22:30:27 +02:00
George Koehler 019c7f9da7 Update cpm/README for console changes, ack -fp. 2018-05-07 16:08:44 -04:00
George Koehler 154509038d Enable the line editor in read() for CP/M.
This changes the BDOS call from CPM_BDOS_CONSOLE_INPUT to
CPN_BDOS_READ_CONSOLE_BUFFER.  This allows commands like ^H to delete
characters and ^C to exit to CCP.  This is more like how Unix read(2)
uses canonical mode of termios to read a line.

This change has a disadvantage: the user buffer to read(2) must now be
large enough for an entire line.  This is because CP/M, unlike Unix,
lacks a kernel buffer to hold the rest of the line.  If you use a
buffered input library like stdio to call read(2), then it works; but
if you try to read part of a line or a single character, then it
doesn't work.
2018-05-04 18:21:01 -04:00
George Koehler 93e01eb5d1 Teach i80 ncg to use libfp. Enable ack -mcpm -fp.
Old .o files stop working if they use floating point.  One must
recompile those files.  Old files don't call libfp in the correct way,
and may use symbols that I removed from libem.  I don't keep old
symbols in libem/flp.s, because a program that pulls both libfp and
flp.s would get "multiply defined" errors in the linker.

I teach mach/i80/ncg/table to use libfp by copying or adapting the
patterns from mach/i86/ncg/table.  I did not test all the patterns,
but I did use `ack -mcpm -fp -O4` to compile examples/mandelbrot.c,
then I ran it in the emulator YAZE-AG.  It worked, but it was slow.
2018-04-25 16:09:56 -04:00
David Given 0e10329876 Fix an issue throughout where B couldn't be built by ackprogram due to symbol
laziness.
2016-12-29 17:11:53 +00:00
David Given 4485d89b23 Hook the B compiler up to the compiler driver. 2016-11-27 20:48:07 +01:00
David Given 5bce5fc4da Change the extension used by Basic files for .b to .bas, to avoid conflicts
with B.
2016-11-27 20:38:33 +01:00
David Given 36ab90385f Change sbrk() to take an int rather than an intptr_t (following the OpenBSD way
rather than the Linux way; various non-C bits of the ACK assume it takes an
int, so it's cleaner).
2016-11-23 22:06:24 +01:00
David Given f67c98e239 Distributions are a pain --- let's not bother any more. Instead, we just tag
the repository and download a complete snapshot, old and ancient stuff and all.
2016-09-02 23:00:38 +02:00
David Given 612e38f1c6 Remove the old make-based build system, plus some big chunks of horribly
obsolete protomake build system.
2016-09-02 22:17:51 +02:00
David Given 420c47c386 Fix dependency error (only shows up with make, not ninja. Odd). 2016-08-15 00:46:43 +02:00
David Given 3df4906d52 Turns out I wasn't building the syscall libraries. Do so. 2016-08-14 11:23:57 +02:00
David Given b549980af2 Wasn't exporting the plat headers; refactor to make this a little cleaner. 2016-08-14 11:01:36 +02:00
David Given 262c5fedcf Biggish refactor to break cycles; my build rules were full of them. cpm builds,
which requires top and topgen.
2016-08-14 01:39:40 +02:00
David Given 88bd7ce126 Remove defunct pmfiles.
--HG--
branch : default-branch
2016-06-03 13:56:50 +02:00
David Given ff0c78cc78 Merge from default.
--HG--
branch : dtrg-videocore-branch-branch
2016-03-13 21:13:09 +01:00
David Given aacabba165 Apply fix contributed by George Koehler:
- don't crash if BSS overlaps BDOS
- fix stack initialisation bug
- fix command line argification
2013-06-02 22:02:15 +01:00
David Given 92817a6ad7 Allow platforms to specify size of long double; seperate alignment from size.
--HG--
branch : dtrg-videocore
2013-05-21 19:18:11 +01:00