--- MiNT/src/changes	2018/04/24 17:55:36	1.1
+++ MiNT/src/changes	2018/04/24 17:57:23	1.1.1.3
@@ -4,10 +4,1706 @@ first.
 
 
 
+version 1.08
+
+
+
+dosfile.c,dosdir.c,filesys.c:
+
+	Made the file and directory operations re-entrant, by replacing
+
+	the global variable "temp1" with local variables (where needed).
+
+dosdir.c,filesys.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Cleaned up the directory closing functions.
+
+dosmem.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Fixed a bug in do_vfork (the child's PROC structure could be
+
+	freed when signals are checked for, and the old code wasn't
+
+	prepared for that).
+
+purec\*.*: ++reschke@math.uni-muenster.de
+
+	Updated for the new version of MiNT.
+
+*.*: ++alex@falcon.demon.co.uk
+
+	Lots of fixes to get rid of warnings and some small optimizations.
+
+dosmem.c,procfs.c: ++reschke@math.uni-muenster.de
+
+	In Pexec, save the name and arguments a process was started with
+
+	into the PROC structure, so that they can be recovered at run time.
+
+filesys.c,main.c,unifs.c: ++Ulrich Kuehn
+
+	At boot time, load files called *.xdd which contain external
+
+	device drivers.
+
+	Also, provide Dcntl calls for drive U: to allow installing and
+
+	de-installing file systems at run time.
+
+bios.c: ++nox@jelal.north.de
+
+	Only busy-wait for the parallel port, not for serial ports.
+
+unifs.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Pass Dcntl commands along to file systems.
+
+signal.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Make Fselect interruptable.
+
+procfs.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Check for illegal signal numbers in ioctl(PTRACEGO,...).
+
+dosdir.c:
+
+	Fattrib should have been following links.
+
+*.spp: ++Claus Brod and Uwe Seimet
+
+	Various optimizations
+
+
+
+version 1.07
+
+
+
+debug.c: ++reschke@math.uni-muenster.de
+
+	Translated the German "FATAL ERROR" message.
+
+intr.spp:
+
+	The bus error handler shouldn't use 68030 MMU instructions unless
+
+	it is on a 68030. (Thanks to Stephen Henson for catching this.)
+
+
+
+version 1.06
+
+
+
+bios.c: ++akiernan@cix.compulink.co.uk
+
+	Fixed a bug with Bconout and TOS 1.02.
+
+dosmem.c:
+
+	Bug fix: Pexec mode 4 should cause the child to inherit its parent's
+
+	memory.
+
+filesys.c:
+
+	if disk_changed() detects an invalid drive, return EDRIVE from
+
+	it and also from path2cookie().
+
+main.c:
+
+	Fixed the PRN= line in mint.cnf (it was redirecting AUX:, not
+
+	PRN:).
+
+xbios.c:
+
+	Made Dosound() automatically grant supervisor access to the
+
+	region the sound is in.
+
+debug.c:
+
+	Make the "FATAL ERROR" message multilingual, and also less
+
+	confusing if debugging information is not provided.
+
+timeout.c,main.c:
+
+	Make the addtimeout() and canceltimeout() functions available
+
+	for device drivers.
+
+signal.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Reduce the amount of space needed for signal calls (we were
+
+	being overly cautious on that),
+
+dosmem.c: ++akiernan@falcon.demon.co.uk
+
+	Make sure that the text segment in which a process will be
+
+	executing is attached to that process when it is started with
+
+	a Pexec (4,...).
+
+asmtrans: ++robert.wilhelm@physik.tu-muenchen.de
+
+	Enhanced to accept some 68030 specific addressing modes.
+
+proc.c:
+
+	Removed the save/restore of the logical screen pointer for the
+
+	MultiTOS kernel (this causes problems on a Falcon, since if the
+
+	AES changes resolution its parent process may be left with a
+
+	logical screen pointer pointing at invalid memory). 
+
+bios.c: ++robert.wilhelm@physik.tu-muenchen.de
+
+	Some small optimizations.
+
+biosfs.c:
+
+	Fcntl() was not interacting properly with rsconf(), so that
+
+	setting baud rates via Fcntl didn't work.
+
+dosfile.c:
+
+	Fforce() should return 0 on success.
+
+context.spp,cpu.spp: ++julian@math.uni-muenster.de
+
+	Patches for PureC.
+
+intr.spp: ++Robert.Wilhelm@Physik.TU-Muenchen.DE
+
+	Small optimization: no return value is needed for spl().
+
+
+
+version 1.05
+
+
+
+main.c: ++hyc@hanuama.jpl.nasa.gov
+
+	A better Falcon BIOS fix: if we're on a broken Falcon, turn
+
+	off Bconmap completely.
+
+various places: ++hohmuth@freia.inf.tu-dresden.de
+
+	Applied Michael's patch to make MiNT compile with PureC and
+
+	the MiNT library.
+
+memprot.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Fixed a bug in prot_temp (the cookie values weren't being
+
+	parsed out correctly). Also, added "const" where appropriate.
+
+dosfile.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Fixed some places where the fdflags[] for file handles
+
+	wasn't be set up correctly (default is 0 for std handles,
+
+	FD_CLOEXEC for non-std).
+
+cpu.spp,main.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Saved the MMU context when starting MiNT, so that we can
+
+	restore it again afterwards (and thus exit MiNT gracefully).
+
+main.c: ++julian@math.uni-muenster.de
+
+	Supplied a PMMU cookie if memory protection is on; if a PMMU
+
+	cookie already exists, don't do memory protection.
+
+fasttext.c: ++nox@jelal.north.de
+
+	Added ESC-t support to the fasttext device.
+
+bios.c: ++nox@jelal.north.de
+
+	Some modem port TSRs also don't return the correct value from
+
+	Bconout.
+
+dos.c:
+
+	Made Tsettime() and Tsetdate() available only to the super user.
+
+various places: ++akiernan@cix.compulink.co.uk,++julian@math.uni-muenster.de
+
+	Portability fixes to make the code compile with PureC and
+
+	Lattice C; also, Alex fixed up the cache clearing code.
+
+tosfs.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Fixed a bug in the NEWWAY code (during disk change, don't
+
+	free file cookies that may be in use).
+
+context.spp: ++seimet@rhrk.uni-kl.de
+
+	In the restore context code, touch the page containing the
+
+	(new) supervisor stack pointer before switching stack pointers.
+
+	Otherwise, if the page is not resident (a 3rd party virtual
+
+	memory system has swapped it out) then the resulting
+
+	bus error is fatal.
+
+tosfs.c: ++akiernan@cix.compulink.co.uk
+
+	Fixed a bug that could cause crashes on disk changes (the
+
+	'open' field was an integer for directories).
+
+rendez.c, mem.c: ++Martin_Koehling@un.maus.de
+
+	Fixed some memory leaks (semaphores weren't freed after being
+
+	destroyed, and if load_and_reloc failed then the memory
+
+	allocated for the shared text region wasn't freed).
+
+procfs.c:
+
+	When tracing is cancelled for a process with PTRACESFLAGS,
+
+	start the process again by sending it SIGCONT.
+
+procfs.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Don't allow processes to be removed by a different user.
+
+signal.c:
+
+	Fixed the debug tracing code so that SIGCONT doesn't stop
+
+	a process, even if it is being traced.
+
+procfs.c:
+
+	Dpathconf was returning the wrong value (8 instead of 12 -- it
+
+	wasn't taking the pid number extension into account).
+
+
+
+version 1.04
+
+
+
+bios.c:
+
+	Changed the way timeout worked for Bconout() stuff (basically,
+
+	rewrote the code so that it really does work -- the old code
+
+	used the system clock in timeout.c, which doesn't get updated
+
+	if no context switches are happening; the new code uses the
+
+	200hz counter, which is always updated).
+
+proc.h:
+
+	Increased the number of Fsfirst searches that can happen
+
+	simultaneously to 10 from 6 (this is a per-process
+
+	limit, not system wide).
+
+
+
+version 1.03
+
+
+
+xbios.c: ++entropy@terminator.rs.itd.umich.edu
+
+	In old versions of TOS, Rsconf could get stuck waiting for the
+
+	transmit buffer to empty if flow control was on. Added a timeout.
+
+dos.c:
+
+	Changed Psetpgrp so that passing a pgrp of -1 makes it into
+
+	an inquiry call.
+
+filesys.c: ++Martin_Koehling@un.maus.de
+
+	Fixed a bug in Flock (regions were being locked 1 byte too far).
+
+mem.h:
+
+	Changed the memory allocation quantum to 256 bytes, so that
+
+	Srealloc will always work right on ST's.
+
+
+
+version 1.02
+
+
+
+main.c:
+
+	Run any AUTO folder programs appearing after MINTNP.PRG
+
+	as well as just plain MINT.PRG.
+
+syscall.spp:
+
+	Pop more stuff off the stack in sig_return, since we
+
+	did push more onto it in handle_sig. (It really shouldn't
+
+	matter, restore_context will restore the stack pointer
+
+	anyway, but better safe than sorry.)
+
+filesys.c,mem.c:
+
+	Made the open file associated with shared text memory
+
+	regions be closed automatically when a media change occurs.
+
+xbios.c:
+
+	Changed the do_usrcall function into an assembly language
+
+	routine which preserves all registers. Apparently some
+
+	programs rely on being able to pass parameters to Supexec
+
+	in registers. We only used to kill register A0, which was
+
+	reserved for BIOS use anyway, but obviously some programmers
+
+	choose not to read the f'ing manual.
+
+dosdir.c: ++entropy@terminator.rs.itd.umich.edu
+
+	Fixed a typo (PATH_MAX where ERANGE should have been).
+
+biosfs.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Check control keys on every newline, so users get quick response
+
+	to their key hits.
+
+tty.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Fixed a typo (t_startc is the character to use to resume terminal
+
+	output, not t_stopc!)
+
+dosdir.c,dosmem.c,filesys.c,tosfs.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Fixed many dup_cookie and release_cookie bugs; the code should be much
+
+	more usable now.
+
+main.c:
+
+	Corrected a flaw in the 68030 only version -- it assumed that
+
+	68030 was synonymous with memory protection. Also: set
+
+	mcpu correctly.
+
+main.c:
+
+	Checked to see if we're called "MINTNP.PRG"; if so, turn off
+
+	memory protection automatically. Commented out the code
+
+	for automatically turning MP off on 1 meg machines.
+
+
+
+version 1.01
+
+
+
+main.c,intr.spp:
+
+	Use init_tail for the temporary stack (saves us 128 bytes of bss,
+
+	oh boy).
+
+main.c:
+
+	If less than 1 megabyte is free, turn off memory protection
+
+	automatically.
+
+mem.h:
+
+	If there's no memory protection, do all ROUNDing etc. to
+
+	16 byte boundaries rather than 8K page boundaries.
+
+mem.c:
+
+	Added a check for the ability to move screen RAM; evidently
+
+	some boards use ST RAM but still don't allow Setscreen()
+
+	to work.
+
+all over the place: ++julian@math.uni-muenster.de
+
+	Cleaned up the code for PureC compatibility.
+
+all over the place: ++akiernan@cix.compulink.co.uk
+
+	Cleaned up the code for Lattice compatibility.
+
+fasttext.c: ++hyc@hanauma.jpl.nasa.gov
+
+	Sped up by special casing some of the gotoxy() calls, and
+
+	also allowed 8 pixel high characters in monochrome mode.
+
+dosdir.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Allow Frename() to succeed on symbolic links.
+
+signal.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Save processor context stuf in the reserved BIOS area even for
+
+	bus errors with memory protection on.
+
+dosfile.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Initialize the exception file descriptors to 0, in anticipation
+
+	of future use of this Fselect feature.
+
+dosfile.c: ++schwab@lamothe.informatik.uni-dortmund.de
+
+	Allow pipes to be opened and written to with O_APPEND mode.
+
+version.h:
+
+	Got rid of the PATCHLEVEL define. Now that I've finally
+
+	checked everything into RCS, it's much easier to just bump
+
+	up the version numbers on each release.
+
+
+
+version 1.00
+
+
+
+welcome.c,version.h:
+
+	Sigh. This is MultiTOS 1.0's MiNT, so even though I don't
+
+	consider it "finished", I'm changing the version number to
+
+	1.0. At least it's no worse than TOS 1.0 :-).
+
+memprot.c:
+
+	We want to flush the ATC cache, *not* the CPU cache. Thanks
+
+	for pointing this out, Alex.
+
+bios.c:
+
+	Fixed a problem with Speedo GDOS; if the printer's buffer was
+
+	full, Bconout(2,...) would do a context switch, which is not
+
+	a good thing for Speedo.
+
+
+
+version 0.99
+
+
+
+PATCHLEVEL 2::
+
+
+
+main.c:
+
+	Big bug fix -- the do_exec_os routine was being called with a
+
+	basepage that occupied all of memory, so that the Pexec(200) it
+
+	did was failing due to insufficient memory. Now we Mshrink the
+
+	basepage; this also necessitates fixing up the stack pointer.
+
+main.c:
+
+	Handle mint.cnf files that don't end in a carriage return/line feed
+
+	combination.
+
+filesys.c:
+
+	New path parsing code to correct a bug in the way symbolic
+
+	links were being handled on loadable file systems.
+
+
+
+PATCHLEVEL 1::
+
+
+
+debug.c:
+
+	Made the default debugging level give ALERT messages.
+
+dosfile.c:
+
+	Corrected a bug in the way global file handles are closed.
+
+
+
+PATCHLEVEL 0::
+
+
+
+dosmem.c:
+
+	Made it so that overlay Pexec modes (e.g. 200) set up
+
+	the basepage to preserve the same "parent".
+
+main.c:
+
+	Added in a kludge so that if we're starting GEM from a file
+
+	(e.g. gem.sys) then we do it via the exec_os vector. I hope
+
+	this makes the Codeheads happy :-).
+
+dosmem.c,tty.c:
+
+	Backed out entropy's and schwab's changes. Random programs
+
+	were getting stopped under MultiTOS because of them; I can't
+
+	find the cause, so let's go back to something that worked
+
+	(if suboptimally).
+
+main.c:
+
+	Fixed a silly initialization error: we should not
+
+	assume a default language, we should get it from
+
+	the ROMs.
+
+dosdir.c: ++julian@math.uni-muenster.de
+
+	Extended Dlock: if bit 1 of the mode is set, then the
+
+	process id of the process using the drive is returned
+
+	instead of ELOCKED or EACCDN; this allows for more
+
+	informative error messages.
+
+welcome.c:
+
+	Updated the copyright notice.
+
+
+
+version 0.98
+
+
+
+PATCHLEVEL 4::
+
+
+
+dosmem.c,tty.c: ++entropy@gnu.ai.mit.edu
+
+	Corrected some silliness in the job control code.
+
+
+
+PATCHLEVEL 3::
+
+
+
+xbios.c:
+
+	Took out the ONLY030 optimization; it didn't work correctly
+
+	(I can't see any reason why it shouldn't have worked, but
+
+	it didn't; perhaps a compiler bug bit us?)
+
+
+
+PATCHLEVEL 2::
+
+
+
+main.c:
+
+	Changed magic shift key to LEFT shift key.
+
+filesys.c:
+
+	Make loaded .XFS files go into supervisor accessible
+
+	memory.
+
+welcome.c,main.c:
+
+	Ask user in her own language whether or not to boot if the
+
+	kernel is a MultiTOS one and she held down the shift key.
+
+filesys.c:
+
+	Relax O_COMPAT mode opens somewhat so that any
+
+	number of processes can open the file for reading,
+
+	as long as no more than 1 has it open for writing.
+
+	ALSO: make sure O_EXEC gets treated the same as O_RDONLY.
+
+dosfile.c:
+
+	Change TRACE() to TRACELOW() on Fread and Fwrite.
+
+tosfs.c:
+
+	Went back to old method of doing tosfs.c; this is
+
+	better tested and safer.
+
+dos.c:
+
+	New system call, Salert(msg), for doing an alert message.
+
+debug.c:
+
+	Terminate messages written to the alert pipe with a 0.
+
+	Also: pour them into alert boxes so that programs like
+
+	sysalert don't have so much to do.
+
+
+
+PATCHLEVEL 1::
+
+
+
+fasttext.c: ++shenson
+
+	Corrected the quote_putch function.
+
+dosdir.c:
+
+	Allow Dfree(n) to work if "n" is a big number (e.g. BIOSDRV)
+
+	and the corresponding pseudo-drive is a current or root directory
+
+	of the current process.
+
+pipefs.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	Return a new error number, EPIPE, for writes to broken pipes.
+
+tty.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	If a tty loses its owner, the next process to do i/o to it
+
+	will become the owner.
+
+dosfile.c: ++schwab@ls5.informatik.uni-dortmund.de
+
+	FA_RDONLY doesn't mean "read only" on the process file system,
+
+	so allow such processes to be opened for writing.
+
+
+
+PATCHLEVEL 0::
+
+
+
+xbios.c:
+
+	Fixed Supexec to pass the function pointer on the stack, too
+
+	(just as TOS does). This is still undocumented behaviour,
+
+	so you rely on it at your own risk.
+
+xbios.c: ++entropy@gnu.ai.mit.edu
+
+	Applied a fix for Rsconf() with TOS 1.04, and made the
+
+	old TOS Rsconf stuff #ifndef ONLY030.
+
+proc.c,dosmem.c:
+
+	Wrap all calls to add_q/rm_q in spl7(), so that the
+
+	wakeselect() function truly can be called from
+
+	interrupt code.
+
+makefile,*.spp:
+
+	Make provisions for compiling an 030/040 only version
+
+	of MiNT; this should be faster and smaller than the
+
+	generic version.
+
+version.h:
+
+	The file system interface changes warrant a new version
+
+	number, so here it is.
+
+
+
+version 0.97
+
+
+
+PATCHLEVEL 3::
+
+
+
+dosdir.c,proc.c:
+
+	Keep a chain of open directories, so that if a program
+
+	terminates without calling closedir() we can still clean
+
+	up after it. Also: allocate directory structures from
+
+	kernel memory rather than user memory, so that we don't
+
+	take an 8K hit on each one. PROBLEM: a bug in the mntlib
+
+	readdir() function causes bus errors if memory protection
+
+	is on. This is a library bug that needs to be fixed
+
+	real soon now.
+
+dosmem.c:
+
+	TSRs now get forced into global memory if they were running
+
+	privately; this should make things easier for users who
+
+	forgot to change prgflags on their TSR programs.
+
+filesys.c:
+
+	New meaning for O_COMPAT mode: deny write access to all other
+
+	processes.
+
+tosfs.c:
+
+	Added a define to turn on/off the RO_FASCISM code. Personally,
+
+	I think it should always be on.
+
+dosdir.c,filesys.c,file.h,*fs.c:
+
+	New file system functions, release() and dupcookie(), so that
+
+	the kernel can inform file systems when it is finished
+
+	with a file cookie; networked file systems will be very
+
+	happy about this.
+
+
+
+PATCHLEVEL 2::
+
+
+
+procfs.c:
+
+	Moved the memory protection checks for proc_read and
+
+	proc_write to a separate function in memprot.c.
+
+dosfile.c:
+
+	Remove the old compatibility code for Fcntl(F_SETFL,...).
+
+	(Actually, it's commented out, so we can put it back in
+
+	if we need to.)
+
+signal.c:
+
+	Change default behaviour for SIGFPE (which is raised
+
+	by division by 0) to "ignore", same as TOS.
+
+dosdir.c:
+
+	Made Dgetcwd() use the new size parameter, so that it
+
+	works as advertised.
+
+file.h, *fs.c:
+
+	Provide a "size" parameter for the getname() file system
+
+	function, so that we can do Dgetpath() of arbitrary length
+
+	paths.
+
+util.c:
+
+	BIG_MEM_DUMP is a nasty thing for users to get;
+
+	so we shouldn't do it on all failed mallocs!
+
+
+
+PATCHLEVEL 1::
+
+
+
+proc.c:
+
+	Plugged a memory leak (dispose_proc was failing to
+
+	free the process table memory, because fork_proc
+
+	was zeroing that field in the PROC structure).
+
+main.c:
+
+	Fixed MAXMEM= (it was setting the maximum CPU time,
+
+	not the maximum memory -- I thought I tested this!)
+
+
+
+PATCHLEVEL 0::
+
+
+
+main.c:
+
+	Added MAXMEM= and SLICES= variables for mint.cnf.
+
+bios.c:
+
+	Fixed Setexc so that if the new vector is in a global
+
+	region, the region is re-marked to be super.
+
+dosmem.c:
+
+	Fixed a race condition with memory protection and
+
+	Pexec(100,...) (if the new process exited early,
+
+	the old process might still try to access it).
+
+realloc.c:
+
+	New file, for doing the Srealloc system call (for
+
+	Falcon TOS).
+
+*.*:
+
+	Merged in Allan's memory protection and debugging
+
+	code. New files: memprot.c, nalloc2.c, welcome.c.
+
+
+
+version 0.96
+
+
+
+PATCHLEVEL 14::
+
+
+
+tosfs.c:
+
+	Aaargh! Just after cutting this patch I discovered
+
+	that I had the test backwards.
+
+
+
+PATCHLEVEL 13::
+
+
+
+tosfs.c:
+
+	Changed so that Fsfirst()/Fsnext() always return
+
+	upper case, regardless of domain. (MiNT aware
+
+	programs should use the new directory functions.)
+
+dosdir.c: ++akiernan
+
+	Got rid of the special hack for drive x:, since
+
+	drive x: no longer exists.
+
+asm.y: ++akiernan
+
+	Cleaned up a bit.
+
+*.c: ++julian
+
+	Some minor patches for PureC.
+
+dosdir.c: ++julian
+
+	New system call, Dgetcwd(), with a 'size' parameter;
+
+	this doesn't do anything different from Dgetpath
+
+	now, but it's there for future expansion.
+
+
+
+PATCHLEVEL 12::
+
+
+
+version.h:
+
+	Update the patchlevel correctly.
+
+pipefs.c,dosfile.c:
+
+	Keep the Unix style semantics for pipes created with
+
+	Fpipe, but not for other fifo's (which by default will
+
+	continue to read the number of bytes requested).
+
+
+
+PATCHLEVEL 11::
+
+
+
+tty.c:	++schwab
+
+	Support word-erase and quote-next-char.
+
+fasttext.c: ++schwab
+
+	support fgcol/bgcol
+
+	(screen_ioctl): tty_ioctl is now called by parent by default if
+
+	EINVFN
+
+signal.c (check_sigs): ++schwab
+
+	Use an int to index signals, not a long
+
+biosfs.c (bios_getxattr): ++schwab
+
+	u:\dev\stdin, etc., get the attributes of
+
+	the associated files
+
+dos.c (p_setuid, p_setgid): ++schwab
+
+	Allow setting to the current real [gu]id
+
+bios.c (checkkeys): ++schwab@ls5.informatik.uni-dortmund.de
+
+	Keys read by do_func_key should not be
+
+	interpreted (esp. UNDO -> SIGQUIT). also recheck shift status
+
+	since do_func_key may take some time
+
+xbios.c: ++entropy@gnu.ai.mit.edu
+
+	Added code to support old (tos < 1.4) Rsconf()
+
+	semantics.
+
+mem.c:
+
+	Changed so that attempts to execute a shared text program
+
+	which has data/bss references in the text segment will
+
+	get an ENOEXEC error instead of ENSMEM.
+
+*.c: ++julian@math.uni-muenster.de
+
+	Applied Julian's purec patches.
+
+
+
+PATCHLEVEL 10::
+
+
+
+pipefs.c:
+
+	Changed so that read() on a pipe will return as
+
+	soon as some data is available; this is how
+
+	all Unixes work.
+
+*.c:
+
+	Applied Julian's patches to allow compilation with
+
+	PureC.
+
+main.c:
+
+	New variable, MAXMEM=, for setting maximum memory
+
+	size (in K).
+
+main.c:
+
+	Removed PSEUDODRIVES= command, since "alias" has
+
+	replaced it.
+
+util.c:
+
+	Changed atoi to atol; it's more generally useful.
+
+asmtrans:
+
+	Applied Howard's patches; in particular, made %ifdef
+
+	apply to other commands (like %define) as well as to
+
+	code generation.
+
+	
+
+PATCHLEVEL 9::
+
+
+
+asmtrans:
+
+	Cleaned up a bit more for cross-compilation.
+
+intr.spp:
+
+	in_kernel can be set while the process is in user mode
+
+	(if the critical error handler calls GEM)
+
+syscall.spp:
+
+	Get rid of some more magic numbers.
+
+bios.c:
+
+	While fixing the mtt bug, a new bug was introduced. So,
+
+	let's try again :-).
+
+
+
+PATCHLEVEL 8::
+
+
+
+bios.c:
+
+	Fixed a particularly silly bug in bios.c: in do_bconin(),
+
+	r was being returned without being initialized. Why didn't
+
+	gcc catch this?
+
+*.c:
+
+	Applied Alex's patches for Lattice, and Julian's patches for
+
+	Pure C.
+
+signal.c:
+
+	Kill programs with p_term() instead of terminate() (except for
+
+	signal SIGKILL) so as to allow them a chance to clean up via
+
+	the term_vec vector.
+
+shmfs.c:
+
+	Allow Fattrib() call to change the read-only
+
+	bit. Made Fxattr() return the correct mode
+
+	for shared memory files.
+
+main.c, fasttext.c:
+
+	Allowed HARDSCROLL=AUTO to set the number of
+
+	lines of scrolling to the current screen size.
+
+syscall.spp, inline.h:
+
+	New functions, callout2() and callout1(), with
+
+	less overhead; used by bios.c to call the
+
+	Bconxxx functions.
+
+bios.c:
+
+	Changed calls to Bconxxx functions into
+
+	jumps through the defined vector table in
+
+	low memory, when this is possible (TOS 1.0
+
+	doesn't have the table).
+
+asmtrans, *.spp:
+
+	Added %ifdef, %else, and %endif commands (for
+
+	future expansion). Removed the requirement that
+
+	macros to be expanded be delimited by % signs,
+
+	and cleaned up the definitions. Changed
+
+	"SECTION FOO" to "FOO". Added -purec compilation
+
+	option.
+
+filesys.c:
+
+	Fixed a bug in changedrv (there was no
+
+	check to see if "d" was a BIOS drive before
+
+	aliasdrv[d] was tested).
+
+
+
+PATCHLEVEL 7::
+
+
+
+biosfs.c,fasttext.c:
+
+	Fixed incorrect code that assumed TCURSON
+
+	was 0.
+
+makefile:
+
+	Fixed Makefile to work with older versions
+
+	of gmake, as well as generic make programs.
+
+
+
+PATCHLEVEL 6::
+
+
+
+*.s:
+
+	Radical overhaul of how assembly language is
+
+	handled. We now provide 2 utility programs,
+
+	"genmagic" (for producing symbolic names for
+
+	various offsets into structures) and "asmtrans"
+
+	(for processing .spp files, replacing macros
+
+	defined by "genmagic" and optionally translating
+
+	Motorola to MIT syntax). Now we only have to
+
+	maintain the .spp files; the Lattice and gcc
+
+	versions of the .s files are generated automatically,
+
+	and as a side benefit we can get rid of magic
+
+	numbers in the .s files and be sure that if we
+
+	change proc.h, the assembly language will be
+
+	updated properly.
+
+main.c,filesys.c,file.h:
+
+	Added a new command to mint.cnf, "alias", to
+
+	enable aliases for pseudo (and other) drives
+
+	to be created. Also, deleted drives q:, v:, and
+
+	x:. Programs should no longer be using these;
+
+	if they are, users can put things like
+
+	"alias q: u:\pipe" into mint.cnf.
+
+file.h:
+
+	Fixed the definitions for TCURSON and TCURSOFF.
+
+console.c:
+
+	Moved the handle checks in file_* functions into
+
+	separate functions, since for example we *know*
+
+	that handle 0 falls within the legal range; this
+
+	should remove a bit of overhead on BIOS and
+
+	single character GEMDOS I/O.
+
+main.c:
+
+	Got rid of the zeroexit() code; since we now
+
+	allow the whole boot process to be aborted by
+
+	right shift.
+
+pipefs.c:
+
+	Allow Cursconf() to work on TOSWIN pipes.
+
+mem.c:
+
+	Check the date and time of shared text regions
+
+	before re-using them.
+
+bios.c,syscall.s:
+
+	Changed the trap #13 entry point to allow quick
+
+	evaluation of BIOS functions that don't need
+
+	the full context save/restore done.
+
+everywhere:
+
+	Macro-ize TRACE and DEBUG so that it's possible
+
+	to produce a smaller version of MiNT without
+
+	them.
+
+biosfs.c:
+
+	Don't check for keyboard presses after every
+
+	BIOS write, it's too time consuming.
+
+
+
+PATCHLEVEL 5::
+
+
+
+mem.c:
+
+	Another bug: we shouldn't do the dLibs Pexec
+
+	hack on the first process we start up, because
+
+	it means messing with the MiNT basepage (which
+
+	is not ours to mess with, it's TOS's).
+
+main.c:
+
+	Fixed bug in enter_kernel (rootproc->base is no
+
+	longer necessarily MiNT's basepage).
+
+various places:
+
+	Tried to remove gcc warnings about constant
+
+	expression overflow.
+
+syscall.s:
+
+	Applied Alex's patch to allow trace mode to work
+
+	with non-MiNT debuggers.
+
+various places:
+
+	Applied Alex's patches to get rid of Lattice warnings
+
+	about unneeded assignments.
+
+mem.c:
+
+	Added extra traces to exec_region() in an effort to
+
+	track down the mysterious crash problems that others
+
+	have had.
+
+
+
+PATCHLEVEL 4::
+
+
+
+dosmem.c:
+
+	Made do_vfork not bother to save shared text regions.
+
+bios.c:
+
+	Made Rwabs respect Dlock.
+
+tosfs.c:
+
+	Made the TOS media change routines lazier (actual
+
+	disk access is deferred until the disk is next
+
+	needed).
+
+main.c:
+
+	Applied Alex's patches for setenv.
+
+everywhere:
+
+	Applied Julian's patches for Pure/Turbo C. The
+
+	resulting kernel doesn't actually work yet, but
+
+	at least we don't get so many error messages when
+
+	compiling. (Who needs lint when you have three
+
+	fussy ANSI compilers?)
+
+mint.h:
+
+	Oops; we should have had #include "inline.h" here.
+
+inline.h:
+
+	Applied jrb's GCC patches, and Alex's Lattice patches.
+
+
+
+PATCHLEVEL 3::
+
+
+
+bios.c:
+
+	Some optimizations in bflush(). I tried something like
+
+	this before, but messed up the terminal output modes.
+
+	Let's hope I got it right this time. Also:
+
+	removed some dependencies on sizeof(int).
+
+makefile:
+
+	Tried -O2 instead of -O. It seems to work, so let's
+
+	leave it on for now.
+
+inline.h:
+
+	New file to keep short, inlined versions of frequently
+
+	called functions.
+
+intr.s:
+
+	Check the floppy disk locking flag before doing a
+
+	pre-emption. Not really necessary now, but it doesn't
+
+	hurt to be careful.
+
+dosfile.c,*fs.c:
+
+	Applied Alex's F_SETLKW patches. If Alex isn't careful,
+
+	he's going to make MiNT Posix compliant on us :-).
+
+dosmem.c:
+
+	Applied Alex's patches to add a Pwaitpid system call.
+
+main.c:
+
+	If running from the AUTO folder, adjust the basepage
+
+	chains so that MiNT is invisible to programs that
+
+	(incorrectly!) make assumptions about basepages.
+
+proc.c:
+
+	Some optimizations in do_wakeup.
+
+filesys.c:
+
+	Don't call (*fs->dskchng)() twice when a disk
+
+	change is detected.
+
+main.c:
+
+	Make sure the _resvalid system variable has the
+
+	correct magic number in it for indicating that
+
+	we want to catch the reset.
+
+
+
+PATCHLEVEL 2::
+
+
+
+dosdir.c:
+
+	Really forbid deleting other process' current
+
+	directories (the actual "return EACCDN" was missing!)
+
+proc.c:
+
+	Inlined the check_time() function, and re-arranged
+
+	do_wakeup_things a bit to be more efficient.
+
+syscall.s:
+
+	Streamlined a bit; things are now kept in registers
+
+	where possible.
+
+filesys.c:
+
+	When loading file systems at startup time, don't
+
+	check the \MINT directory if that's the current one.
+
+filesys.c:
+
+	After a media change, instead of throwing away all
+
+	handles that pointed to the changed drive, make
+
+	them point to /dev/null instead, so that they
+
+	won't be re-used until the user explicitly closes
+
+	them.
+
+dosdir.c:
+
+	Allow Dlock() to succeed even if there is an
+
+	unfinished Fsfirst/Fsnext sequence on the drive.
+
+mem.c:
+
+	Allow relocations outside of the program load area;
+
+	apparently, some programs actually need these.
+
+mem.c:
+
+	Insert some sanity checks on memory addresses.
+
+signal.c:
+
+	Restart check_sigs if the process stopped because of
+
+	a signal, since the parent may reset the set of
+
+	pending signals.
+
+cpu.s:
+
+	New file from Alex, to control caching &c.
+
+various places:
+
+	More debugging patches from Alex, to make attaching
+
+	to existing processes work correctly.
+
+
+
+PATCHLEVEL 1::
+
+
+
+various places:
+
+	Cleaned up the debugging stuff a bit. For example, if a
+
+	process does PTRACESFLAGS on itself, it's the same
+
+	as if the parent did; also, if the process does a
+
+	Pexec with overlay (i.e. Unix exec()) then it stops
+
+	before its first instruction. This makes emulating
+
+	the Unix ptrace() system call much easier.
+
+
+
+PATCHLEVEL 0::
+
+
+
+biosfs.c:
+
+	Changed Fcntl TIOCISPEED/TIOCOSPEED to return the
+
+	next lowest legal baud rate if an illegal one is
+
+	specified.
+
+filesys.c:
+
+	Fix a bug that would cause an infinite loop if a
+
+	bad .XFS format is encountered.
+
+mem.c,mem.h,dosmem.c:
+
+	Implemented shared text; if the appropriate bit
+
+	(for now, 0x800) in the program header is set, then
+
+	the loader will set up a shared text region for
+
+	the program, and subsequent executions of it will
+
+	run out of the same text segment. Note that this
+
+	does require appropriate compiler support!
+
+filesys.c:
+
+	Fixed bug in the way directory searches are closed
+
+	after a media change.
+
+biosfs.c,intr.s:
+
+	Applied Julian's third mouse button patch for
+
+	/dev/mouse.
+
+*.s:
+
+	Applied Alex's debugging patches. Also: wrote a
+
+	Motorola->MIT syntax converter, so that we only
+
+	have to maintain the stuff in the "asm" directory.
+
+signal.c,proc.h,procfs.c,etc.:
+
+	Applied Alex's debugging patches, with a few
+
+	slight modifications.
+
+
+
 version 0.95
 
 
 
+PATCHLEVEL14::
+
+
+
+
+
+filesys.c:
+
+	Check for the existence of the \MINT directory before
+
+	trying to load .XFS files from there.
+
+
+
+--- patchlevel 13 released to the public ---
+
+
+
 PATCHLEVEL13::
 
 
@@ -28,7 +1724,11 @@ dosdir.c:
 
 	relpath2cookie no longer checks drive letters
 
-	unless "depth" is > 0. Fixed this.
+	unless "depth" is > 0. Fixed this. (why did
+
+	we change relpath2cookie that way?? this is
+
+	changed back in 0.99pl2)
 
 main.c,filesys.c: