Alan Cox [Sat, 9 Mar 2019 19:41:58 +0000 (19:41 +0000)]
z80sio: Fix a bug in the linc80 logic and add macros for non fixed common cases
Alan Cox [Sat, 9 Mar 2019 17:32:22 +0000 (17:32 +0000)]
easyz80: fix SIO vector loading and CTC vectors
This gets us to the point timer events are happening but there is no input
response.
Alan Cox [Sat, 9 Mar 2019 12:15:57 +0000 (12:15 +0000)]
cp: remove struct assignment
This allows it to build with older SDCC correctly
Alan Cox [Fri, 8 Mar 2019 23:28:32 +0000 (23:28 +0000)]
easy-z80: Initial port framework for easy-z80
This in theory is a complete port to Max Malinov and Sergey Kiselev's
Easy Z80 SBC including CTC timing, serial port baud rate control and using IM2
and fast IM2 based serial handlers (but not yet softirq).
It's not yet been debugged/tested on any kind of emulation or actual board
however.
Alan Cox [Thu, 7 Mar 2019 14:33:55 +0000 (14:33 +0000)]
trdify: Make .TRD disk images
This is used to generate pentagon and scorpion bootable floppy images for the
kernel
Alan Cox [Thu, 7 Mar 2019 14:33:29 +0000 (14:33 +0000)]
tgl6502: goodbye
Alan Cox [Thu, 7 Mar 2019 14:33:04 +0000 (14:33 +0000)]
zxdiv48: a bug I noticed whilst working on pentagon
Still not tested/debugged yet
Alan Cox [Thu, 7 Mar 2019 14:32:23 +0000 (14:32 +0000)]
pentagon: more work in progress for fixed 16K ROM systems
Alan Cox [Thu, 7 Mar 2019 14:31:58 +0000 (14:31 +0000)]
scorpion: /dev/lp and turbo
Alan Cox [Thu, 7 Mar 2019 14:31:22 +0000 (14:31 +0000)]
pentagon1024: /dev/lp support and turbo
Alan Cox [Thu, 7 Mar 2019 14:30:56 +0000 (14:30 +0000)]
dev: add generic lp driver
Alan Cox [Wed, 6 Mar 2019 00:36:41 +0000 (00:36 +0000)]
scorpion: Initial scorpion support (Scorpion 256)
Alan Cox [Wed, 6 Mar 2019 00:35:15 +0000 (00:35 +0000)]
tricks-big: remove bogus leftover or
Fixes the crash when we use the lower banks
Alan Cox [Tue, 5 Mar 2019 23:12:21 +0000 (23:12 +0000)]
pentagon: add the tricks macros to keep in sync
Alan Cox [Tue, 5 Mar 2019 23:06:16 +0000 (23:06 +0000)]
pentagon: bring back pieces from the pentagon1024
There is still much to be done to support older Pentagons but keep the tree in
sync
Alan Cox [Tue, 5 Mar 2019 23:04:29 +0000 (23:04 +0000)]
pentagon1024: get it building and running
Alan Cox [Tue, 5 Mar 2019 23:03:27 +0000 (23:03 +0000)]
pentagon1024: add macros to make the tricks-big file shareable
Scorpions need something a bit different
Alan Cox [Tue, 5 Mar 2019 23:03:06 +0000 (23:03 +0000)]
zx: tidy tty references
Alan Cox [Tue, 5 Mar 2019 23:02:37 +0000 (23:02 +0000)]
ide: remove needless devtty includes
Alan Cox [Tue, 5 Mar 2019 22:23:28 +0000 (22:23 +0000)]
pentagon: pentagon1024
Copy the work so far over to a new platform because the older Pentagon systems
don't have the RAM0 low mapping and will need something a bit different.
As we are dependent upon the 1024K features we can just hardcode 1MB of RAM.
Not that you can use it all right now. 16 processes at a time is 512K and given
the task switch cost it's not clear how you'd use 32 processes in memory sanely.
We could add a 512K RAM disc but then with an vaguely modern CF card the
difference between banked RAM copies and CF card I/O is actually in favour
of using the CF card.
Maybe we'll just have to invent banked applications for such systems one day.
Alan Cox [Tue, 5 Mar 2019 00:56:27 +0000 (00:56 +0000)]
discard85: first cut at 8085 discard hack for the assembler
Not yet tested
Alan Cox [Tue, 5 Mar 2019 00:52:17 +0000 (00:52 +0000)]
pentagon etc: commit the banking support code
This is a lot more complex than the Spectrum 128K as we have a proper set of
banking to manage and we need to treat the 8000-BFFF as a cache. This is good
enough to get us to init forking, but the world ends not long afterwards
Alan Cox [Tue, 5 Mar 2019 00:51:30 +0000 (00:51 +0000)]
pentagon: fix various bank handling bugs
Alan Cox [Tue, 5 Mar 2019 00:50:45 +0000 (00:50 +0000)]
pentagon: fix the bank numbers
We want 0-7 - the upper bit is accounted for by the 0x40
Alan Cox [Tue, 5 Mar 2019 00:50:27 +0000 (00:50 +0000)]
pentagon: remove pointless define
Alan Cox [Tue, 5 Mar 2019 00:49:56 +0000 (00:49 +0000)]
pentagon: set the bank size correctly
Alan Cox [Tue, 5 Mar 2019 00:49:36 +0000 (00:49 +0000)]
nemoide: optimize a silly code path
Alan Cox [Mon, 4 Mar 2019 01:28:21 +0000 (01:28 +0000)]
pentagon: IDE interface update
This gets us to the point that we parse the partition table and then fail to
load init.
Alan Cox [Sun, 3 Mar 2019 17:41:22 +0000 (17:41 +0000)]
pentagon: Fix banking changes
With these fixed we get to a bootdev: prompt and can look at disk drivers
Alan Cox [Sun, 3 Mar 2019 16:57:22 +0000 (16:57 +0000)]
z80: build trdify
Alan Cox [Sun, 3 Mar 2019 16:56:24 +0000 (16:56 +0000)]
pentagon: sort the loader out (sort of anyway)
With this done we load an image and seem to blow up on the first interrupt or
thereabouts whilst probing for disks.
Alan Cox [Sun, 3 Mar 2019 16:55:30 +0000 (16:55 +0000)]
Makefile: clean up bank files
Alan Cox [Sat, 2 Mar 2019 21:00:36 +0000 (21:00 +0000)]
CREDITS: this was fixed remove the FIXME
Alan Cox [Sat, 2 Mar 2019 20:26:43 +0000 (20:26 +0000)]
Makefile: update
Alan Cox [Sat, 2 Mar 2019 20:10:07 +0000 (20:10 +0000)]
sc108/sc114: merge the ports and use the ROM hooks
We can't use them as we'd like but we can use them with a bit of extra hackery.
Drop using the ROM for serial I/O - it's not really worth it or a good plan.
Alan Cox [Fri, 1 Mar 2019 22:21:52 +0000 (22:21 +0000)]
syscall_other: final (I hope) batch of uint8_t strict cleanup
Alan Cox [Fri, 1 Mar 2019 22:20:24 +0000 (22:20 +0000)]
syscalls: fix remaining char v uint8_t warnings
The kernel now handles everything it can unsigned so that we don't give the
compilers needless work to do on the processors like the 8080 and 6502 that
suck at sign extending.
Alan Cox [Fri, 1 Mar 2019 22:19:52 +0000 (22:19 +0000)]
v85: add 6850 ACIA speed/setting controls
They don't do anything but they are better example for real devices
Alan Cox [Fri, 1 Mar 2019 22:18:54 +0000 (22:18 +0000)]
cp: replace cp (and it can be used for mv ln) with a nice version
It's still under 20K, it does multiple jobs and it adds all the SUS expected
behaviours.
Alan Cox [Fri, 1 Mar 2019 22:12:43 +0000 (22:12 +0000)]
zxdiv48: minor Makefile tweakery
Still not had time to actually start getting this running
Alan Cox [Fri, 1 Mar 2019 22:12:17 +0000 (22:12 +0000)]
zxdiv: turn on ZX Uno features if present
Alan Cox [Fri, 1 Mar 2019 22:11:33 +0000 (22:11 +0000)]
zxuno: add some helpers for putting the ZX Uno into 14Mhz mode etc
From a Fuzix perspective we want to turn on all the features regardless
Alan Cox [Fri, 1 Mar 2019 19:25:48 +0000 (19:25 +0000)]
syscall_net: do the change so we keep the socket number in a sane place
Alan Cox [Fri, 1 Mar 2019 19:25:25 +0000 (19:25 +0000)]
opendir: correct const usage to match standard
Alan Cox [Fri, 1 Mar 2019 19:24:54 +0000 (19:24 +0000)]
getopt: correct const v non consts in prototype to match standard
Alan Cox [Fri, 1 Mar 2019 13:56:59 +0000 (13:56 +0000)]
visualize: really _CODE is bank 0 so report it as 0 not 1 in bank 0
Alan Cox [Fri, 1 Mar 2019 13:55:29 +0000 (13:55 +0000)]
visualize: add in more of the bank types
This allows it to work on stuff like the trs80m1
Alan Cox [Thu, 28 Feb 2019 23:33:55 +0000 (23:33 +0000)]
tools: add a maketap tool for spectrum .tap files
We don't yet use it in anything but it's handy to have.
Alan Cox [Thu, 28 Feb 2019 22:28:50 +0000 (22:28 +0000)]
linc80: update notes
Alan Cox [Thu, 28 Feb 2019 22:15:16 +0000 (22:15 +0000)]
flat: flat models have their own valaddr and it needs the new prototype
Alan Cox [Thu, 28 Feb 2019 21:40:02 +0000 (21:40 +0000)]
mntent: fix hasmntopt return for not found
Alan Cox [Thu, 28 Feb 2019 21:37:28 +0000 (21:37 +0000)]
cpuinfo: note that there's an even buggier R flags emulation to be wary of
Alan Cox [Thu, 28 Feb 2019 21:37:08 +0000 (21:37 +0000)]
zx+3: oops turn the floppy off when idle
Alan Cox [Thu, 28 Feb 2019 21:36:24 +0000 (21:36 +0000)]
kernel: kiss char * goodbye as much as possible, also fix pipe open
Also fix the pipe open semantics for named pipes (I hope).
Alan Cox [Thu, 28 Feb 2019 21:33:28 +0000 (21:33 +0000)]
v85: add floppy, ramdisc and rtc
Based on the emulations added to the emulator. This hopefully gives people some
more examples to work with when writing stuff.
Alan Cox [Thu, 28 Feb 2019 21:32:15 +0000 (21:32 +0000)]
trs80m1: remove debugging code
Alan Cox [Thu, 28 Feb 2019 21:31:55 +0000 (21:31 +0000)]
rc2014: clarify CTC card
Alan Cox [Thu, 28 Feb 2019 21:31:29 +0000 (21:31 +0000)]
amstradnc: typo fix
Alan Cox [Thu, 28 Feb 2019 21:30:47 +0000 (21:30 +0000)]
fdc765: fix off by one
Alan Cox [Sun, 24 Feb 2019 21:43:02 +0000 (21:43 +0000)]
yaz180: ppide changes
In theory this gets us a kernel that will work on a Yaz180.
Alan Cox [Sat, 23 Feb 2019 15:47:41 +0000 (15:47 +0000)]
v65c816:fix config
Alan Cox [Wed, 20 Feb 2019 23:05:38 +0000 (23:05 +0000)]
zxdiv48: Initial code for 48K ZX Spectrum with DivIDE plus or ZXCF
Queueing this up for weekend testing.
It seemed a shame that the classic squishy key machines were being left out
so there was only one thing left to do - fix it.
It's a curious combination of the 128K/DivIDE model and the single process
in memory model. The kernel is banked four ways in the low 16K using memory
from the DivIDE Plus or ZXCF card. The area between the screen and 0x8000 just
about fits enough data for a minimal system providing the disk buffers are
banked. From 0x800-0xFBFF is then used for the application space with FC00-FFFF
holding the stacks, udata and a 256 byte space we may yet need.
The rest of the 512/1024K of RAM on the interface is then used as swap.
Task switching is slow (two x 32K ldir) but that is no worse than the disk
load/save used by other single process in memory platforms.
The biggest problem is the limited amount of unbanked kernel RAM. With the
screen at 0x4000-0x5AFF we only have a shade over 8K for all our common,
our data, constants and bank switching stubs. To get it to fit we end up
limiting our user space to 31K (versus 31.5K on most other 32K switched bank
platforms).
Alan Cox [Wed, 20 Feb 2019 22:34:18 +0000 (22:34 +0000)]
visualize: allow visualisation of banked kernels
Alan Cox [Wed, 20 Feb 2019 22:33:56 +0000 (22:33 +0000)]
binmunge: support more banks, and fix hardcoded bank counts
Alan Cox [Wed, 20 Feb 2019 22:33:14 +0000 (22:33 +0000)]
z80: single process banked kernel
Alan Cox [Wed, 20 Feb 2019 22:32:59 +0000 (22:32 +0000)]
z80single: remove comment for work done
Alan Cox [Wed, 20 Feb 2019 22:32:09 +0000 (22:32 +0000)]
z80: add out16 for out's to a 16bit port, and in16 likewise
We need these for some of the systems that do I/O decoding on the cheap (like
the ZX spectrum). Not yet tested.
Alan Cox [Wed, 20 Feb 2019 22:30:48 +0000 (22:30 +0000)]
swap: allow offet 0 to be used for swap
Don't make it the default because some platforms use swap slot 0 for other things
Alan Cox [Wed, 20 Feb 2019 01:14:04 +0000 (01:14 +0000)]
kernel remove dead old z80 def file
Alan Cox [Wed, 20 Feb 2019 01:13:42 +0000 (01:13 +0000)]
v68: kill stale dead experimeting trees
Alan Cox [Wed, 20 Feb 2019 01:06:16 +0000 (01:06 +0000)]
spx302: Initial code sketch for the SPX302/MPU302 conversion
See https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:spx-mpu
for more information about this system.
This is just an initial set of buildable code. It needs a loader and debugging
before we can get further
Alan Cox [Wed, 20 Feb 2019 01:03:03 +0000 (01:03 +0000)]
make: fix make clean rules
Alan Cox [Wed, 20 Feb 2019 00:30:40 +0000 (00:30 +0000)]
v85: update for the latest v85 to allow reboot
Alan Cox [Wed, 20 Feb 2019 00:29:12 +0000 (00:29 +0000)]
z80/rabbit: The big rearrange of U_DATA to _udata offsets
The linker is good enough to work this out (except for the one z180.s case) so
move to letting the linker do the work. This eliminates a configuration item
for people to get wrong, and also will be needed to generate a relocatable
Fuzix kernel.
Alan Cox [Tue, 19 Feb 2019 14:46:13 +0000 (14:46 +0000)]
pentagon: fix I/O ports on sketch of loader code
It doesn't work yet at all, but since I noticed this in the first sketches I
wanted to fix it before I forget
Alan Cox [Tue, 19 Feb 2019 14:45:12 +0000 (14:45 +0000)]
configs: add direct I/O to various platforms that can use it just fine
Alan Cox [Tue, 19 Feb 2019 14:43:14 +0000 (14:43 +0000)]
amstradnc: use generic 16 banking code
Alan Cox [Tue, 19 Feb 2019 14:42:29 +0000 (14:42 +0000)]
z80: unified z80 4 x 16 bank tricks code
And apply it to rc2014 and zeta2
Alan Cox [Tue, 19 Feb 2019 14:35:14 +0000 (14:35 +0000)]
nc100: fix weird crash caused by _HOME segment
divulong was added by the compiler in _HOME. As we didn't list _HOME in crt0
it ended up being recycled
Alan Cox [Tue, 19 Feb 2019 00:23:24 +0000 (00:23 +0000)]
n8vem: fix missing newline
Alan Cox [Tue, 19 Feb 2019 00:22:58 +0000 (00:22 +0000)]
config: update so everyone has BOOTDEVICENAMES
Alan Cox [Tue, 19 Feb 2019 00:20:05 +0000 (00:20 +0000)]
filesys: not an optimization to look into
Alan Cox [Mon, 18 Feb 2019 00:06:06 +0000 (00:06 +0000)]
8080: small uzero optimization
Alan Cox [Mon, 18 Feb 2019 00:04:20 +0000 (00:04 +0000)]
v85: switch to vectored interrupts and use some 8085 optimizations
Alan Cox [Sun, 17 Feb 2019 23:56:11 +0000 (23:56 +0000)]
8080: add framework for 8085 vectored interrupts and 8214 interrupts
Alan Cox [Sat, 16 Feb 2019 22:12:09 +0000 (22:12 +0000)]
v85: intial merge of the port
Alan Cox [Sat, 16 Feb 2019 22:07:39 +0000 (22:07 +0000)]
start: move memory printing
Some platforms benefit from sizing memory later (or even stealing memory during
boot dynamically) so move the reporting.
Alan Cox [Sat, 16 Feb 2019 19:47:25 +0000 (19:47 +0000)]
tc2068: remove work done from README
Alan Cox [Sat, 16 Feb 2019 12:40:54 +0000 (12:40 +0000)]
README.md: update
Alan Cox [Sat, 16 Feb 2019 12:40:15 +0000 (12:40 +0000)]
v8080: remove rst.s and update documentation
The current rst.s is now a match for the compiler one and we need no differences
so just use the provided one.
Alan Cox [Sat, 16 Feb 2019 11:47:16 +0000 (11:47 +0000)]
cpuinfo: add 8080 support
Alan Cox [Sat, 16 Feb 2019 11:46:37 +0000 (11:46 +0000)]
8080: fix a bug in the cpu detection code
Still needs more checking
Alan Cox [Sat, 16 Feb 2019 02:46:02 +0000 (02:46 +0000)]
v8080: align with upstream rsts
Alan Cox [Sat, 16 Feb 2019 02:30:54 +0000 (02:30 +0000)]
sh: add string.h for strsignal()
Alan Cox [Sat, 16 Feb 2019 00:12:27 +0000 (00:12 +0000)]
df: update to match changes in includes and speed up
Whilst we are it we can treat mtab as official so we don't do lots of pointless
lookups for the generic case of 'df'.
Alan Cox [Fri, 15 Feb 2019 23:04:19 +0000 (23:04 +0000)]
v8080: update README
Alan Cox [Fri, 15 Feb 2019 23:03:44 +0000 (23:03 +0000)]
rabbit: htons/htonl
Alan Cox [Fri, 15 Feb 2019 23:02:17 +0000 (23:02 +0000)]
8080: fix low level signal delivery logic
Alan Cox [Fri, 15 Feb 2019 23:01:52 +0000 (23:01 +0000)]
8080: commit the crt0 files I forgot
Alan Cox [Fri, 15 Feb 2019 21:57:41 +0000 (21:57 +0000)]
8080: turn on interrupt support and pre-emption
Fix one small bug in the process