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1.1 root 1: 960905 Lower 8 bits of POTGOR should be 0.
2: 960904 Implement MULU, MULS, ADDX and SUBX in compiler.
3: 960903 ncurses interface works. DOS people: please use the new portable tui.c
4: and turn dos-ui.c into a frontend for conio.h, similar to svgancui.c
5: In xui.c, unlink the temporary files ASAP.
6: Two new command-line options, "-o" and "-G".
7: Get rid of sz_unknown.
8: compiler.h, compiler.c: New files.
9: filesys.c, action_read(): Added a hack to test whether the first four
10: bytes read from a file a file contain 0x000003F3 (HUNK_HEADER), in
11: which case there's probably a LoadSeg() call going on and we ought to
12: flush the cache. Also, use the fact that memory is now linear.
13: 960902 Struggle a bit with dos-ui.c, rename it to tui.c (text-based ui), add
14: new file svgancui.c (ncurses ui) and try to make these two understand
15: each other.
16: 960829 New transdisk from Stefan Ropke (can write images)
17: Apply Patrick Hanevolds BeBox patches.
18: 96082x many changes to Exec. Still not booting (DMACON seems not to be set up
19: properly, and sometimes Signal is called with task==0).
20: 960821 Solaris sound from Manfred Thole.
21: 960820 In filesys.c, get_fileinfo(), return volume name for top-level
22: directory.
23: 960819 Reimplement WritePixel(). Layer locking is still missing.
24: 960818 Reverse meaning of -x flag for X11. More Exec code.
25: Several changes to the main CPU loop and the way call traps work.
26: 960817 Implement some simple Exec functions (Lists, AllocMem & friends)
27: 960816 filesys.c fixes from David Varley.
28: 960815 Implement graphics library region functions.
29: 960814 Modify memory layout: All memory is linear now; get_real_address()
30: returns a (UBYTE *).
31: 960810 Add Gustavo's latest DOS code.
32: In configure, include <sys/param.h> earlier for the sake of some *BSD.
33: Add three options for sound code (bits, frequency, buffer size).
34: Make -S option take a parameter; remove SPEED_UP_SIDMON_MODULES.
35: New version of transrom (return 0, duh).
36: 960805 Fixed the blitter line mode emulation (this time, really! I hope.)
37: Thanks to Fabio Ciucci for a detailed description of the correct
38: behaviour.
39: 960730 Spent the last three days trying to make the filesystem emulation
40: bootable by adding an expansion device for it. A fair bit of trial and
41: error, but now it works! Even the hardfile now works with Kick 1.3, but
42: you have to mount it manually after booting.
43: hardfile.c, filesys.c, expansion.c and autoconf.c now are an
44: entangled mess which badly needs to be cleaned up.
45: We can now mount more than one filesystem even with Kick 1.3: we
46: recognize them by param 2 of the startup packet, which has the same
47: value as the dn_Startup field of the devicenode.
48: Make Kickstart replacement work again (didn't like the CPU emulator
49: changes)
50: Include preliminary serial support from Stefan Reinauer.
51: 960728 Fixed the scancodes for <> and #' keys in svga.c
52: Apparently, CIA timer latches ought to be 0xFFFF after a reset
53: (prevents Eagleplayer from crashing occasionally). #ifdeffed out a
54: slightly weird call to INTREQ from RehtinkICRB()
55: 960727 Sound code rewritten again. Now uses events (five new ones). All
56: modules seem to play correctly now. It's a bit slower, though.
57: AF sound should work again, patches from Marcus Sundberg.
58: 960723 ... and more CPU emulation bugs fixed by Herman.
59: Added uae.library from Tauno Taipaleenmaki, plus support files in the
60: "amiga" directory.
61: Added some files for the XFree86/OS2 port from Krister Bergman.
62: Reorganized all the directories.
63: 960717 Add latest patch from Herman.
64: More FAST_BLITTER options: 4 and 5. These finish the blit immediately.
65: 960713 Call XAutoRepeatXXX() only if we know we want to change the state.
66: 960709 Work around a few AIX bugs (ughhh... what a broken OS). New test for
67: sys/select.h.
68: In xui.c, don't try to communicate with a dead process.
69: 960704 More bugfixes from Herman.
70: Get rid of dummy_xlate(), use default_xlate() to abort with error.
71: In svga.c, set correct_aspect to 0 if using lores.
72: Change the Bcc exception 3 handling code a bit.
73: Add new program "cpuopti" that takes gcc-generated assembly files and
74: optimizes away unnecessary pushl/popl instructions on the x86.
75: 960701 68020 exception handling & various bugfixes from Herman ten Brugge.
76: In ersatz.c, use 0xFF0D instead of 0xF00D as trap opcode.
77: Do MMU "emulation" (no-op MMU instructions, probably many cases decoded
78: incorrectly).
79: 960627 New file LIESMICH, with minimal German instructions. Somebody want to
80: translate the docs to French, Spanish, Italian, all the Scandinavian
81: languages, Hebrew, Polish, Dutch, Russian, Welsh, Gaelic and something
82: [email protected] understands? (No offense meant - I'm sure there are
83: brillant minds using AOL. There must be.)
84: 960626 In zfile.c, make sure we delete the temporary file even if file
85: decompression fails.
86: Reimplemented sound support, this time following the HRM closely. Seems
87: to work fine most of the time, but occasionally loses drum beats in
88: TFMX modules. do_sound() is now unconditional, it calls
89: flush_sound_buffer(), which is system-dependent. This breaks everything
90: except Linux sound for now :(
91: Add Herman ten Brugge's 68020/68881 emulation code.
92: FreeBSD chokes if sys/mount.h is included without sys/types.h. Fix the
93: configure script.
94: 960622 More work on AGA code.
95: Removed 2-bit display routines from custom.c. Ian: please use dithering
96: code.
97: Make slowmem and chipmem sizes run-time configurable.
98: Mask out the high bits in BLT?PTH().
99: Add exception 3 checks to Bcc/BSR instructions. Seems to be not quite
100: correct yet.
101: Completely rewrote the disk emulation. We now create a big track buffer
102: full of MFM data, used in a cyclic fashion by DSKBYTR() and friends.
103: The current position in the buffer is determined by the cycle counter.
104: DMA reads are now done in one piece. Two new event types: ev_diskblk
105: and ev_diskindex.
106: ARRGGHH! The RSI demo has _completely_ broken disk loading routines.
107: They start disk DMA on a block while the blitter is still working on
108: the same memory region.
109: In zfile.c, unlink() the temporary file directly after opening it so
110: it will be freed by the OS as soon as we close it (or crash... :)
111: 960621 Merge pfield_sprite_h() and pfield_sprite_l() into one function.
112: Split off new files blitter.c and blitter.h from custom.c.
113: Fixed null-pointer dereference in zfile.c when filename has no
114: extension.
115: Add new field maxline to gfxvidinfo that prevents writing past the
116: screen buffer if it has less lines than expected.
117: Modify the 256 color allocation routine to set nb_cols to the same
118: value first for r,g and b; allocate everything as usual and fill the
119: lost colors afterwards with those that have the greatest difference.
120: 960620 For some extremely weird reason, it is faster to simply call the
121: assembly-optimized pfield_linetoscr_full routines _twice_ to double the
122: line than calling the new (also assembly-optimized)
123: pfield_linetoscr_full_double routines, at least when writing directly
124: into the framebuffer. If someone has a good theory why, let me know
125: about it.
126: Drawing into memory is faster with the _double routines, but not
127: noticeably (about 1%).
128: Consequence: Removed the new pfield_linetoscr_full_double assembly
129: routines again.
130: Add a "--disable-gui" option to configure.
131: Add Samuel Devulder's dithering code. Provide support for mono and
132: 16 color X servers.
133: Put an assembly version of DitherLine() in X86.S.
134: New color mode (3) available, tells UAE to use 256 colors and dither
135: the image. This is meant for people who have only a 256 color X server
136: available, but it works with the SVGA version, too. It's much slower
137: than normal 256 color mode, though.
138: Use the color allocation algorithm from the dither code in
139: alloc_colors256(), too.
140: 960619 New files: zfile.c and zfile.h, from Samuel Devulder. These provide
141: transparent decompression of various compressed file formats. Enabled
142: by configure only for Unix systems.
143: Eliminate dont_want_aspect. New option "-C", sets correct_aspect. Make
144: video mode 3 640x480, video mode 4 800x600. Honor correct_aspect in
145: 320x400, 640x480 and 800x600 mode with SVGAlib.
146: Add fields maxlinetoscr and x_adjust to gfxvidinfo.
147: Rename pfield_slow_linetoscr() to pfield_do_linetoscr(). Use new fields
148: in gfxvidinfo to enable writing directly to the framebuffer in
149: resolutions with <800 horizontal pixels.
150: New function pfield_do_linetoscr_full(), called when sure that full
151: line update is being done.
152: Move some of the usage() information into some target_specific_usage()
153: functions, defined in the various system-specific files.
154: Support lower resolutions with LOW_BANDWIDTH, too.
155: memcpy() within screen memory is dog slow. Prevent some common cases:
156: 1. Use fill_line() to double a line in the border.
157: 2. Add a parameter to pfield_do_linetoscr_full() to indicate whether
158: the line has to be doubled. New functions
159: pfield_linetoscr_*_double_slow() that simply do a memcpy(), plus
160: optimized ones in X86.S that are much faster by avoiding the copy.
161: Smart update code could get confused by lores modes when
162: prev_max_diwstop changed from one frame to the next. New variable
163: frame_redraw_necessary, which acts as a counter. It's initialized to
164: 2 in interlace mode to handle that case properly, too.
165: Move sprite priority checks into pfield_sprite_?(), move HAM
166: calculations into new function decode_ham6() to simplify the various
167: linetoscr functions.
168: Fixed a bug that would cause sprites to get deformed in some cases
169: when they overlapped (never seen it).
170: 960618 New file: dos-snd.c, from Gustavo.
171:
172: 960617 Release 0.6.0
173: 960617 Fix memory clobber in X86.S when diwfirstword==0. Eliminate double test
174: for HAVE_SYS_MOUNT_H in sysdeps.h.
175: 960616 Handle programs that don't wait for the blitter by finishing a pending
176: blit as soon as a blitter register is written to (regardless of DMACON,
177: to be safe).
178: Call gui_led only if the LED changed.
179: 960615 Fixed dual playfield sprite priorities. Optimized dual playfield code
180: in X86.S. More work on AGA code. Get joystick status only in
181: vsync_handler to speed things up.
182: Make blitter fill more intelligent with table lookups instead of loop.
183: 960614 DOS update from Gustavo. Pass real bitplane pointer to
184: bpl_data_differs(), don't calculate it again.
185: 960610 Fixed silly INTEL_FLAG_OPT bug: The new __asm__ expressions use
186: regflags, which is of course _regflags on a.out...
187: More BeBox fixes from Christian.
188: Make the CIA bank bigger (A0..BF) and relax the CIA A/B selection
189: checks to make broken software (Kingsoft's Emerald Mine, reportedly)
190: happy.
191: Default framerate is now 1.
192: 960603 New BeBox code from Christian. Fix test for ELF in configure.in.
193: 960529 genblitter.c: generate blitfunc as a function taking ULONGs and
194: returning an ULONG. This makes custom.o about 4500 bytes smaller on the
195: x86 by removing worthless size prefixes, and should increase
196: performance (better for the cache, and the P6 reportedly doesn't like
197: 16 bit instructions anyway).
198: memory.c: Load Kickstart in one block and swap bytes after that if
199: necessary (eliminates the need for the special bebox load routine)
200: custom.c: Some preliminary work for AGA support.
201: 960528 Saw a real awful piece of code that detects the right mouse button by
202: reading a value from POT0DAT, counting up to 25, reading from POT0DAT
203: again, and deciding the button is pressed if the value changed. Urgl!
204: Added POT0DAT() in custom.c ...
205: Gustavo's latest patches.
206: 960525 Do index pulse handling in CIA_hsync_handler(). Make sure bit 12 in
207: INTREQ gets set on an index pulse. Don't call DISK_Index() for now,
208: since this breaks the Workbench.
209: The CIA code should _probably_ not be resetting the bits in INTREQ.
210: Disable this as an experiment, let's see what breaks.
211: 960524 Z flag handling for ABCD/SBCD/ADDX/SUBX was wrong (must be clear if not
212: zero, was set if zero). Some other flag bugs in these functions fixed.
213: 960523 gfxlib.c update from Christian Schmitt. Some new Mac code from Ernesto,
214: still not all of it, though. Italian keyboard from Alessandro Bissacco.
215: 960522 Fix the CHK instruction. Implement middle mouse button.
216: 960515 Fix some Nextstep problems in configure.in.
217: 960513 New Makefile target "streifenfrei" to remove all output from configure.
218: Use autoconf 2.7; 2.9 is buggy.
219: 960512 Remove BIG_ALIGNMENT hack. Remove superfluous pfield_fetchdata() call
220: in pfield_doline_slow_l() that resulted in garbage on the screen.
221: Move blttbl array from custom.h to genblitter.c
222: Use new lookup tables imm8_table and areg_byteinc in CPU emulation
223: instead of ?: expressions.
224: GCC appears to generate better code if the opcode is passed as ULONG to
225: the CPU emulation functions instead of as UWORD.
226: Modify some of the flag emulation __asm__ statements so that GCC uses
227: less registers for them.
228: 960510 Cast malloc() results to char *, for C++ compilers.
229: 960509 Use test for GCC and __i386__ in options.h to decide whether to use
230: intel flag optimization.
231: Use test for wish4.0 to decide whether to use the GUI.
232: 960507 New bebox.cpp from Christian. AF sound patches from Marcus Sundberg.
233: 960505 Fix the configuration stuff so it works. Fix some bugs in gfxlib.c
234: 960504 Use GNU autoconf scripts to generate Makefile and sysconfig.h. Add new
235: files sysdeps.h that includes the right system header files. Remove
236: amiga.h and Makefile.
237: 960502 More Next code from Ian (new Uae.app directory, 2 bit drawing for
238: custom.c).
239: 960501 Allow the sound driver to set the frequency to a value that is slightly
240: different from the requested one.
241: 960430 Added AmigaOS port from Olaf Barthel.
242: 960427 Fixed single playfield sprite priorities in X86.S.
243: 960426 Added new NeXTwin.m from Ian.
244: Turn off the blitter delay in line mode.
245: Added a CPU optimization from Olivier Raoul: gencpu now reads a file
246: "insncount" that can be generated by UAE during execution and generates
247: specific functions for the most common opcodes. Not documented yet.
248: 960414 Reimplemented the fast disk emulation in a more sane way. Also it's
249: only done for reads now. (Plus, it no longer works :-/ Need to work
250: some more on this).
251: In blitter emulation, defer not only the setting of the bltfinish bit,
252: but actually defer the whole blit for the number of cycles it will
253: take. This makes programs the clear the screen while it is still being
254: displayed look much better.
255: Changed supervisor mode handling around a bit (was messy).
256: New DOS code from Gustavo.
257: 960412 Removed smart update method 2. Added Alessandro Bissacco's blitter
258: optimization patch.
259: Fixed some sprite problems: during hysnc, clear sprpos and sprctl, and
260: don't do_sprites() in line 0.
261: 960409 Be a little more intelligent about when to call pfield_linetoscr() from
262: pfield_doline_slow(). It's only necessary if a color register changed.
263: If it can be deferred to the end of the line, use the the _full
264: variants.
265: Some CIA TOD fixes.
266: Better transdisk, accepts first/last track parameters.
267: 960405 New function memcmpy(), inline assembler for the i386. Compares two
268: memory blocks and copies them at the same time. Used in
269: bpl_data_differs.
270: 960404 French keyboard from Tristan Cavelier. Parallel port emulation from
271: Stefan Reinauer.
272: Turn bpl?pt and r_bpl?pt into arrays, simplify some code using them.
273: 960401 Some parts of Ernesto's new Mac sources.
274: 960331 filesys.c: Close filedescriptors in free_key(). get_path() sometimes
275: read uninitialized bytes.
276: Minor cleanups all over the place.
277: unchain_mnn() leaves sibling intact, but clobbers next. customreset()
278: didn't care about that and crashed.
279: Use the __asm__("intel_flag_lookup") magic not only for DOS.
280: Support 320x300 for X (without LOW_BANDWIDTH).
281: Add new function fast_memcmp(), defined as memcmp if __i386__ is
282: undefined, otherwise a slightly optimized inline assembly function.
283: 960329 Some bug fixes in gencpu.c
284: 960328 Stupid programs write odd playfield modulos into the hw registers...
285: Eek! Sometimes, linedescr[] was indexed with a negative value... Add a
286: vpos >= minfirstline check to pfield_may_need_update(). I really need
287: to rewrite this in Oberon...
288: Don't turn off SHM when LOW_BANDWIDTH is selected.
289: Keep the nextpos and linepos variables from pfield_doline_slow_?() as
290: globals and initialize them in pfield_may_need_udpate().
291: Modified alloc_colors256() some more.
292: Try to make sprite DMA follow the Amiga DMA slots more closely by
293: adding a currhp parameter to do_sprites() and calling it at the end
294: of a scanline or in pfield_may_need_update().
295: 960327 Added Gustavo's latest DOS code, as far as possible. Modified X86.S to
296: use a macro SYM() to create symbol names either with underscore or
297: without.
298: Fixed some very silly SVGAlib lores bugs. Move screen 8 pixels up in
299: low resolution.
300: Use diwstop instead of diwstart to caclulate the DIW for 320x200 modes.
301: Reset it not only in calcdiw(), but also in init_frame().
302: Speed up 256 color allocation a little bit.
303: 960326 New function flush_block() in xwin.c and svga.c. Called from
304: do_flush_line() and (new function) do_flush_screen(). Modify struct
305: vidbuf_description, new member maxblocklines that records the maximum
306: number of scanlines that do_flush_line() should collect before calling
307: flush_block(). If it is zero, then flush_line() is used as before.
308: This makes the special case stuff for SHM unnecessary, so it's removed.
309: Fixed a stupid bug in events code: Put ev_hsync in front of ev_copper,
310: so that do_copper gets called with hpos == 0 instead of hpos == 227 at
311: the beginning of the line.
312: New function init_frame() that sets up some variables, called from
313: customreset() and vsync_handler().
314: Move smart update code to pfield_doline() from pfield_doline_h() and
315: ..._l(). Clean up these two with a macro DO_ONE_PLANE, removing
316: duplicate code.
317: Implement big blits and ECS chip ids. New configuration options
318: ECS_AGNUS and ECS_DENISE.
319: Implement MOVEP.
320: 960325 Before calling pfield_may_need_update(), make sure the value that was
321: written to a register actually differs from the previous one.
322: New expansion code from Stefan Reinauer.
323: Modify struct mem_notify_node to contain a pointer to a valid bit
324: instead of the valid bit itself, so that the playfield code has to
325: check only one flag to decide whether to draw the line (SU method 2)
326: 960324 The chip_flags approach has several problems. A flag may cover an area
327: in memory that spans two scanlines, or several scanlines may use the
328: same area in memory.
329: Provide two other, different methods for the smart update:
330: 1. Save all the bitplane data for each line and compare the chipmem
331: with the saved data to decide whether an update is necessary.
332: 2. Use a chain of memory_notify_node structs instead of a single bit
333: for flags. Each scanline owns a set of these structs and chains them
334: into the right place, and the chipmem_?put routines walk the chains
335: and set the modified bit for each element.
336: Unfortunately, both methods are slower than the old one. Especially the
337: first one has some advantages though: it speeds up programs that clear
338: the screen each update and write the same contents back, and it
339: can speed up double-buffering programs at full framerate, since it does
340: not have to check whether the bitplane pointers have changed.
341: Remember the first and last drawn line for each frame, and pass them to
342: flush_screen. Use this in xwin.c for SHM. Modify SHM logic: if smart
343: update is selected, call XShmPutImage() from flush_line() instead of
344: from flush_screen(). But gather blocks of consecutive lines to avoid
345: calling XShmPutImage() too often.
346: 960323 "Smart update" method, based very loosely on Alessandro Bissacco's
347: work, implemented:
348: Add an array chip_flags that records any change made to specific words
349: in chip memory.
350: Move all the hardware registers relevant to playfield display into a
351: new structure bplinfo. Remember the contents of this structure in
352: struct line_description for every line on the screen. Avoid redrawing
353: in pfield_doline if the screen memory has not been modified for the
354: line to be drawn and if the information from the last frame matches
355: that in the current frame.
356: 960322 Duplicate all functions responsible for drawing (pfield_doline,
357: pfield_doline_slow, pfield_sprite, pfield_*word_*res) and append _h
358: or _l (ah, the golden C++ days, when we had templates... which never
359: worked). Modify the *_l functions to support drawing in low resolution
360: (i.e. 320x200). Change the options -d and -H to support selecting color
361: mode and resolution, thereby getting rid of some SVGALIB_* options.
362: Get rid of the old pfield_*word_*res functions.
363: Collect information about the minimum diwstart value during the
364: previous frame and use that in case 320x200 was selected to fit the
365: image on the screen.
366: Get rid of HAVE_JOYSTICK (breaks the "-J" option)
367: 960321 Give up in op_illg() if opcode is 0x4e7b and the exception handler for
368: it is NULL. In that case, it's a 68020 Kickstart.
369: 960319 New Next code from Ian. SunOS target was still screwed (two CFLAGS).
370: Turn -x option into a "hair cursor" option. Support multiple mounts,
371: but warn if more than one is seen (still does not work with Kick 1.3).
372: Integrated Samuel Devulder's new LOW_BANDWIDTH patch.
373: 960318 Integrated the start of Markus Gietzen's gfx library replacement.
374: Changed the interface between custom.c and the graphics code. There has
375: to be a buffer holding the data of all the lines on the screen. For
376: linear SVGAlib modes, this is the video memory. Eliminated -x option,
377: prepare_line(), DrawPixel() and the X_?BIT_SCREEN options, replace with
378: 3 versions of pfield_linetoscr for different datatypes. Implement
379: proper handling of the borders above and below the DIW in custom.c
380: instead of in flush_screen().
381: Move common code (color allocation) from all the graphics files to new
382: file gfxutil.c.
383: Swedish keyboard from Per Olofsson.
384:
385: 960315 Release 0.5.0
386: 960315 Newest DOS port from Gustavo. New sgi-gcc target.
387: 960314 Add -lXext to osf target. Use "rb" for fopen() in main.c
388: 960310 Play a bit with the __asm__ constraints. Implement CHK.
389: 960307 Fix some stupid Makefile errors. Call parse_cmdline() if no init file
390: is found.
391: First round of NextStep patches; new file NeXTwin.m
392: Stupid bug in custom.c: The #define is called NO_FAST_DISK, not
393: NO_FAST_FLOPPY.
394: Fix one of the problems the Deform demo had with the blitter: The
395: line texture wasn't rotated to the right position in blitter_init().
396: 960306 Use some black GCC __asm__ magic to calculate flags more quickly
397: (config INTEL_FLAG_OPT)
398: HAM was broken by pfield_linetoscr changes. Fixed.
399: LOW_BANDWIDTH sometimes got confused when the display window changed.
400: 960305 BCD instructions work well enough for Locomotive Basic on CPE.
401: New function parse_cmdline_and_init_file() that reads ~/.uaerc or
402: ./.uaerc and adds the options found in those files to those in argv[].
403: Patch from Denis Sablic to make disk image filenames runtime
404: configurable. Extend it for the ROM filename.
405: Remove some of the run-time configurable stuff from config.h.
406: More X keysym fixes (I finally got a proper .Xmodmap ...)
407: for SVGAlib: Delete key, and PgUp/PgDn as Amiga keys.
408: The sound driver can now handle 22050 Hz and/or 8 bit samples. Both of
409: these are the default with LINUX_SOUND_SLOW_MACHINE.
410: Also use the SNDCTL_DSP_GETBLKSIZE ioctl and write the buffer when
411: there is enough data.
412: Abuse keybuf.c to provide a fake joystick emulation with the numeric
413: pad (enable with -J)
414: 960304 bebox.cpp from Christian.
415: Rename pfield_linetoscr_full to pfield_linetoscr_full8.
416: More x86 assembly: pfield_linetoscr_full16.
417: 960303 SunOS target from Dirk Vangestel. Put some not-so-superfluous includes
418: back in. Added the DOS specific patches to filesys.c.
419: Started x86 assembly optimizations. New file X86.S, includes an
420: optimized version of pfield_linetoscr (for 8 bit screens only).
421: Don't use SA_RESTART if it isn't defined.
422: prepare_line() wasn't called often enough (again...), leading to memory
423: corruption and "hit the reset button" bugs when using SVGAlib.
424: 960226 Get rid of bool, true and false in amiga.h and everywhere else.
425: Copy yesterdays code to AF_SOUND code, too.
426: Include first round of Christian Bauer's BeBox patches. Add AIX fix
427: from Samuel Mackrill.
428: Add #include <string.h> and #include <stdlib.h> in some more places.
429: Modify gencpu.c and readcpu.c so that immediate types j and J (0..15
430: and 1..8) can be merged. Replace HAVE_ONE_GIG... option with a new
431: CPU_EMU_SIZE option that can be set to a value in the range 0..5,
432: where 0 is minimum size and 5 is equivalent to HAVE_ONE_GIG...
433: 960225 Remove multiplications in sound code, use a big lookup table.
434: 960222 Go back to having only one memory bank table of type addrbank instead
435: of several function pointer arrays. Eliminate the HAVE_BROKEN_SOFTWARE
436: define by extending the memory bank table to 65536 entries.
437: Remove remaining DUALCPU code. Allow BTST src,imm instructions in
438: table68k.
439: 960220 Back out filesys.c change from Stefan Reinauer: don't call V36 specific
440: functions in expansion.library.
441: Better fix for the filesys.c assign problems by Oliver Moehrke.
442: Make new playfield code conditional on EXPERIMENTAL_SCREEN_UPDATE.
443: Improve the 64bit variant of said code. Try to get alignment for
444: apixels by putting it into a union with a long.
445: Kill the child in gui_exit(). Make graphics_init() return a value and
446: check it in main.c to see whether graphics were initialized. If not,
447: call gui_exit() anyway.
448: Use new 256 color allocation routine from svga.c in xwin.c, too.
449: Make LOW_BANDWIDTH compile _and_ work (wow...).
450: 960219 Fix bug in memory.c: When loading 256K Kickstart, copy 256K, not 128K.
451: 960218 Finished the rest of the UI: reset, debug and quit buttons as well as
452: drive LEDs. New target linux-gui; all others use dummy file nogui.c
453: for now.
454: 960217 The GUI now supports inserting and ejecting diskfiles and displays
455: their names. Two pipes are used now, one for reading and one for
456: writing. Properly wait for the process to start up.
457: Use sigaction() instead of signal() in debug.c.
458: More fixes for the new display routines: Need to do a final call to
459: pfield_*word_*res with the data shifted right from the last fetched
460: word.
461: 960216 Copper & sprite bugfixes from Marco Nelissen. Better X keyboard support
462: from Bruno Coste.
463: Move my_strdup() from filesys.c to options.h
464: New files xui.c, uae-ui (shell script) and uae-ui.tk (wish script).
465: These create a GUI for the X version of the emulator. So far, the
466: power LED works.
467: 960215 Don't rely on SVGAlib headers defining any keycodes at all.
468: Include Thorsten Frueauf's NetBSD patch. Apparently, the devname
469: variable in hardfile.c caused a namespace collision, so rename it to
470: uaedevname. Fastmem fixes, debugger help, and ConfigDev allocation in
471: hardfile and filesys from Stefan Reinauer.
472: xwin.c: Give the window a title.
473: Half-implemented the DIVU.L, DIVS.L, MULU.L and MULS.L instructions.
474: 960213 AF sound system support from Marcus Sundberg. Win95 keyboard support
475: for SVGAlib from Thierry Lescot. Added most of Gustavo Goedert's MS-DOS
476: port.
477: When using the old pfield_*word_*res functions, the gen_pfield_tables()
478: function was undefined.
479: Hmmm, /dev/brain must have been unmounted when I wrote the new pfield_*
480: functions. Now they make sure they access the apixels array only with
481: addresses that are multiples of 16 bytes.
482: 960212 Fix copy&paste bug in cia.c found by Marco Nelissen: Need to call
483: RethinkICRB() instead of RethinkICRA() for CIA B timers.
484: Added Stefan Reinauers autoconfig area/fastmem support. Added run-time
485: options for use_slow_mem and use_fast_mem.
486: Oops, the pfield_*word_*res() optimizations break completely on HPs and
487: Sparcs. Now use this optimization only if we are using GCC 2.7.
488: HPUX fixes in the Makefile. New target hpux-gcc.
489: The code for clearing the areas above and below the DIW was trying to
490: be a little too clever selecting the color. Just use the current
491: background color.
492: Added channel attachment to the sound code. Untested.
493: 960211 Found some flag setting bugs in the rotate/shift instructions and in
494: addx/subx (which I thought I had already fixed) by reimplementing
495: DUALCPU mode to work with Ed's e68k.
496: Argh! The copper is completely disabled during DDF in Hires 4 bitplane
497: mode - so copper positions 0x30 and 0x34 are about 640 pixels apart.
498: The Kickstart uses FF39FFFE to wait for the end of line 256 instead of
499: FFDFFFFE as in all the other modes. This is implemented now, but
500: probably not 100% correct.
501: Added check whether SVGAlib doesn't support our mode.
502: If using GCC >= 2.7, define __attribute__((aligned(16))) as
503: BIG_ALIGNMENT in config.h. Use it for the apixels array to prevent
504: potential problems on the Alpha.
505: Tried to make the color selection routine produce better results in 256
506: color mode.
507: 960210 readdisk didn't work at all for large files - fixed.
508: In pfield_doline(), clear the apixels array if playfield DMA is off.
509: In SPRxCTL(), reset sprite mode when sprpos==sprctl==0
510: Rewrite pfield_orword_hires() and friends to use lookup tables. No
511: noticeable improvement on my machine, but might be different on other
512: machines. Two versions of this code: one using 64bit longs on the Alpha.
513: New targets linux-debug and linux-prof.
514: Use 1MB slow mem.
515: -funroll-loops is a little excessive. Remove it.
516: Add support for linear addressing modes for SVGAlib version. Speedup
517: is 20-30% on my old 486 VLB. Now, would someone please fix SVGAlib to
518: support that for the S3-864 as well?
519: Set SVGAlib keyboard mode to DONT_CATCH_CTRLC.
520: Change custom.c, xwin.c and svga.c to keep track of the display window
521: and background color and to clear the areas above and below the display
522: window if necessary to remove garbage images from previous frames.
523: Set the LOF bit in the Kickstart replacement init routine. Also
524: initialize CIAs to Kick 1.3-like values.
525: 960209 Some more -DHAVE_xxx_H options in the Makefile and filesys.c. DEC Alpha
526: fixes for filesys.c from Ed and Marcus. HPUX fixes.
527: New field in table68k for CPU type, parsed by readcpu and compared to
528: CPU_LEVEL which is defined in config.h. New instructions MOVE2C, MOVEC2
529: and CAS. Also a new field for priviledge level that is used by gencpu to
530: generate tests for regs.s and Exception(8) calls if necessary.
531: Move parsing of table68k into a new file build68k.c. Generate a file
532: called cpudefs.c containing the information from table68k in
533: machine-readable form. Change readcpu.c to use the array found in
534: cpudefs.c.
535: Don't generate the d8(An,Dn) addressing mode in-line. Generate a call to
536: get_disp_ea(), which is an inline function in newcpu.h if UAE is
537: configured for 68000 emulation; for 68020 emulation, it is defined in
538: newcpu.c.
539: Debugger could crash on illegals because there was no mnemonic defined
540: in lookuptab[].
541: Return zero for SERDATR.
542: 960207 It seems that the copper stops completely if an attempt to write to a
543: specific register fails because of COPDANG. Apparently, the Kickstarts
544: use this to stop the copper with a 0x00000000 longword. This leaves the
545: question why they don't do 0xFFFFFFFE like everybody else.
546: Enable 512K slow memory by default.
547: Integrate Stefan Reinauers battclock patch that makes it work with
548: newer Kickstarts.
549: In cia.c, do the little index pulse hack even if dskdmaen==1, because
550: DMA is only enabled when dskdmaen==2 (Helps the "Mad Decision" demo).
551: Add solaris entry to Makefile (GCC, Openwin, -DHAVE_STATFS_H)
552: Define HAVE_STRINGS_H for SGIs, change filesys.c accordingly.
553: 960206 Build a smaller table instead of cputbl.c. Use readcpu and the smaller
554: table to build the cpufunctbl array at run-time.
555: Nuked the other half of the old CPU emulator. Reimplemented debugger to
556: use the information generated by readcpu.
557: Define HAVE_STATFS_H for SGIs in the Makefile, and use that as a test
558: in filesys.c instead of #ifndef __linux.
559: Hack filesys.c, get_path() to support the assign command.
560: Add -fstrength-reduce and -funroll-loops in Makefile to make people
561: nervous.
562: Rewrite Sam Devulder's LOW_BANDWIDTH patch and add it to xwin.c.
563: 960205 Forgot some PC-relative bit instructions in table68k.
564: Nuked half of the old CPU emulator.
565: Split gencpu.c into two parts, new one is called readcpu.c and just
566: parses the table68k file. Link it to the main program.
567:
568: 960205 Release 0.4
569: 960203 filesys.c, action_read(): Slightly more efficient code (translate Amiga
570: address to real pointer).
571: Moved some common code in the generate_* functions in gencpu.c to a
572: separate function.
573: 960202 Added an experimental fast disk option. Currently turned off by
574: default (it's not such a big win).
575: Attached sprite fixes (overlapping att. sprites looked bad, Katakis).
576: Add sleep(1) before resetting the console to text mode when using
577: SVGAlib: this might fix some screen corruption problems.
578: Add sprite/playfield priority checking to the most important case
579: (single playfield, no HAM).
580: In filesys.c, do_find(): open() returns -1 on error, not zero.
581: Return ERROR_OBJECT_WRONG_TYPE if do_find() is called for a directory
582: (fixes Champions of Krynn harddisk installation).
583: 960201 Don't abort if sound driver not present, just set produce_sound to 0.
584: New files keybuf.c and keybuf.h to record keypresses in the right
585: order and without losing any. In cia.c, force 15 scanlines between
586: keypresses, just to be sure.
587: unixfs.device _does_ work with Kick 1.3: just don't trust what Kick 1.3
588: sends in the startup packet. For now, disable more than one mount per
589: command line.
590: Started integrating Ernesto's new Mac sources.
591: Remove superfluous includes from some files.
592: 960131 Added Ed's unixfs.device (great stuff).
593: Adding ULONGs to pointers is a bad idea on the Alpha if the ULONG value
594: really is signed. Add some casts to LONG in (pc_p + src) expressions
595: in genpu.c.
596: If DMACON is written and copper DMA is enabled, do a COPJMP1 at once.
597: Helps the "Interference" demo.
598: 960129 More SGI fixes from Ed. Bugfixes and transdisk improvements from Marcus
599: Sundberg.
600: Remove EXTRA_DEFINES from Makefile. Breaks some systems.
601: Move common sprite code from pfield_doline() and pfield_doline_slow()
602: to new function pfield_sprite(). The same sprite may appear more than
603: once on the same line, so don't shift out the bits of sprdata[] and
604: sprdatb[] while displaying it (Turrican I).
605: In xwin.c and svga.c, barf if LINUX_SVGALIB doesn't match the file
606: being compiled.
607: Make all .o files depend on config.h in the Makefile.
608: No need to exit if sound driver unavailable, but -S given.
609: Small debugger fix: Missing space in output.
610: Fix for the sprite logic: Specifically, use a state variable indicating
611: whether the sprite has been restarted after a VSYNC. Fixes most
612: Turrican problems.
613: 960124 Added Denis Sablic's patch for sound run-time option.
614: Added Ed Hanway's patch for better Makefile, X mouse cursor blanking
615: and more SGI compilation fixes.
616: 960123 Include options.h everywhere.
617: Handle 8 bit GrayScale visuals like PseudoColor.
618: Remove C++ leftovers from joystick code.
619: 960122 When using the joystick driver, the button test must come after
620: handle_events() in vsync_handler().
621: 960118 Removed all the remaining C++ comments. Changed all inline keywords to
622: __inline__. Define __inline__ if not using gcc.
623: Make proper prototypes for everything. Compile with maximum warnings +
624: -ansi + -pedantic.
625: Remove CIA_cycle(), obsolete.
626: Reimplemented the STOP optimization in newcpu.c. Removed DualCPU
627: support in CPU emulator.
628: Real nasty bug in pfield_doline() fixed: sprxpos could be evaluated as
629: negative, with not-so-amusing results. (Need to rewrite this in
630: Oberon to get array bounds checking :-)
631: 960117 Heroic effort: Rewrote the thing in C. This might help fix some
632: problems with users being unable to compile it.
633: Fixed a problem in hsync_handler(): Only call flush_line() for lines
634: in the display window, i.e. when we did a prepare_line() before.
635: Better code for relative branches: Don't use setpc(getpc()+x) calls,
636: increment regs.pc_p instead.
637: 960116 Reimplemented the function to load the Kickstart ROM. Use stdio instead
638: of fstreams since this apparently does not work on the Mac. Detect 256K
639: Kickstarts. Detect corrupt ROM images (calculate checksum).
640: Added Ernesto Corvi's Mac port. Changed it around a bit, so it
641: probably won't compile.
642: 960115 Reinstate config.h options for X screen depth, so that DrawPixel() can
643: be inlined in custom.cc for speed. xlinebuffer is now incremented in
644: each call to DrawPixel() (for both X and SVGAlib) to get rid of some
645: address calculations.
646: 960114 Fixed X generic pixel drawing routine for SHM.
647: Still trying to fix the harddisk emulation.
648: uae.device no longer breaks the debugger (can step through uae.device
649: functions now)
650: Bugs affecting performance: SPCFLAG_STOP never got reset, and DSKLEN()
651: would set SPCFLAG_DISK even if DMA was being turned off.
652: Made slow memory a run-time option.
653: Defer interrupts by one CPU instruction to give programs a chance to
654: read INTREQR ("Seeing is Believing" and "Substance" demos)
655: Added ScrollLock hack for X, too.
656: 960113 SVGAlib version compiles again. Fixed SVGAlib mouse bug.
657: Fixed SHM bug: Maximum scanline is 313, not 312.
658: Sometimes, disk.cc missed a side change and would read the wrong data.
659: Fixed. Apparently, this was the worst compatibility problem.
660: Implemented trace mode.
661: 960112 Changed layout of class amigamemory a little so that gcc can generate
662: better addressing modes.
663: Finally wrote functions in gencpu to generate MOVEMs.
664: 960109 Integrated Ed Hanway's patches for better X support and run-time
665: configuration of some options.
666: Got rid of the direct VGA memory access. (Need to do this differently).
667: Changed the method of drawing lines: custom.cc now tells the graphics
668: code the line number and whether it needs to be doubleed before drawing
669: it.
670: Added Andre Beck's MIT-SHM patch.
671: Remove warnings for newcpu.cc.
672: 960108 Fixed exceptions in op_illg(): Need to decrement PC.
673: 960107 Added an "uae.device" resident module at 0xF00000. This emulates a hard
674: disk (fixed size 8MB for now).
675: 960106 Moved some common code from pfield_doline() and pfield_doline_slow() to
676: a separate function. This fixes a potential HAM bug (two static vars
677: for the same value).
678: Sound support for Linux. Works only with graphics off and the CPU
679: slowed down.
680: Better SVGAlib keyboard support.
681: 960105 Added AvailMem(), AllocMem(), AllocAbs() and FreeMem() dummies.
682: The Hardwired demo times the multiplication instructions and prints
683: "This demo don't like Axel" if they are too fast. Apparently, Axel has
684: a 68040. Added a WANT_SLOW_MULTIPLY option to config.h.
685: Fixed the fast blitter emulation (seems to work now).
686: 960104 Fixed all the ChangeLog entries from 95 that said 96 (oops??!)
687: pfield_may_need_update() should check whether bitplane DMA is on.
688: Added ersatz.cc and ersatz.h. The purpose of these files is to
689: implement one or two Kickstart functions that are commonly called from
690: bootblocks. This should help support some games and demos that only use
691: the Kickstart as an initial track loader. So far, it's only good enough
692: for one program.
693: 951223 More intelligent event handling in the CPU emulator. Slightly faster.
694: 951222 Optimize CPU emulation by inlining cctrue(). Also, the real PC no
695: longer needs to be incremented each instruction. The real PC value
696: now has to be fetched by m68k_getpc().
697: Added direct screen access for SVGAlib, but it didn't help much. I'll
698: probably remove it again.
699: The gencpu executable is 2M smaller if it allocates memory
700: dynamically.
701: 951216 custom_bput() enhanced a little. Now remembers the value that was
702: written in the other half of the register.
703: Apparently, the USEx bits of BLTCON0 are ignored in line draw mode.
704: (Silents-Demo)
705:
706: 951212 Release 0.3
707: 951212 Included Alessandro's battclock patch.
708: Fixed mouse autocalibration for wrong-aspect screens.
709: 951210 Joystick support for Linux.
710: Better color matching for 256 color modes.
711: Rewrote most of the memory management in plain C, mainly to avoid the
712: various template bugs in some compilers, but also because gcc can't
713: handle the regparm attribute for virtual functions yet.
714: 951209 Added Alessandro's patches for automatic mouse calibration.
715: Tried to optimize the blitter loop a bit. Doesn't work.
716: 951205 Added Hannu's patches for diskfile write support.
717: 951201 More portability fixes, especially for weird compilers that workstation
718: vendors ship.
719: 951125 More keys for X, some keyboard support for SVGAlib (slightly
720: dangerous); beginnings of US keyboard support.
721: 951124 256 color mode support for SVGAlib. FAST!
722: 951123 Tiny tweak to central loops in playfield code results in much better
723: assembly. Apparently, GCC does not feel too good about optimizing
724: reference variables.
725: 951113 Bug fix in the events code (nextevent must not be changed while events
726: are being processed).
727: 951112 The playfield can now be drawn with the right aspect (i.e., every line
728: twice). Slower, but looks nicer and supports interlaced mode
729: (flickerfree!). The first 29 lines (blanking interval) are omitted
730: now to fit everything in 800x600.
731: Oops, disk drive identification did not work. Fixed, all four drives
732: appear now.
733: Oops, CIA_reset() was there all the time but never got called.
734: Optimized the planar->chunky conversion in pfield_doline() a little.
735: This really is time critical.
736: 951111 If colors change on a line, we might still be able to use the full
737: line update, if the change occurred outside the DIW. Have to be a
738: little careful, though.
739: Playfield code now uses real pointers again, but makes sure it can
740: read enough bytes to complete the current line without segfaulting.
741: Oops, my "better estimate" (see below) was a mistake. Restored the
742: original 4 hw cycles per instruction relation. This slows down the
743: emulator while booting (more screen refreshs), but speeds up many
744: demos that otherwise spend most of their time waiting for a specific
745: raster position.
746: Playfield modulos must be added immediately when DDF stops. (WOC demo)
747: Portability fixes in disk.cc (null pointers).
748: Implemented average frame rate calculation ('c' in the debugger).
749: Debugger fixes.
750: Sprite fixes (height was wrong, wrong priorities in fast update)
751: Added an AutoConfig expansion RAM device. The OS seems to recognize
752: it, but breaks sometime later (seems to be the same bug that kills
753: the emulator when there's RAM at 0xC00000).
754: SVGAlib now has mouse support, too.
755: HAM mode implemented.
756: 951110 Implemented fast complete line playfield update. Switches back if
757: necessary. Fixed attached sprites bug.
758: Copper wait no longer slows down the CPU emulation. (there were
759: lots of new copper bugs because of this, but I hope I fixed all
760: of them).
761: Changed cia?t? from UWORD to ULONG, since there were overflows in
762: the assertion (because of 65535+1 == 0).
763: 951108 The DIVS remainder could have the wrong sign.
764: New HAVE_BROKEN_SOFTWARE define in config.h that makes the emulator
765: mask out the high byte of all addresses.
766: Wrote genblitter.cc and replaced the awful code in blitter_blit()
767: and blitter_line() with calls to the generated function.
768: 951107 Implemented ?BCD. These don't really work yet.
769:
770: 951106 Release 0.2
771: 951105 Fixed a bug in the new CIA timer code.
772: Fixed flag settings for some cases of ADDX/SUBX
773: 951104 Changed the main loop a bit - call all the *cycle() functions only if
774: it is really necessary. I hope everything still works - at least it is
775: twice as fast now :-D
776: Improved mouse emulation - avoid overflows, permit "wraparound".
777: Added debugger 'g' command.
778: Removed some useless casts from the CPU emulator.
779: Added a configuration option to prevent checks for odd addresses. Only
780: very bad programs need this check.
781: 951103 The sprite emulation sometimes did not work too well, especially with
782: dual playfield mode. Hopefully fixed.
783: 951102 The 10 cycle counter is more like a 5 cycle counter in this
784: implementation. (Fine, that makes floppy loading even faster :-)
785: Implemented mouse movement. Totally out of sync with the X pointer,
786: but at least something.
787: Found out about the XAutoRepeatOff() function. Real useful.
788: DualCPU mode works again.
789: Corrected flag settings for CMPA.W.
790: Fixed DIV instructions: Don't change dest in case of overflow.
791: 951031 The PC is now converted to a real pointer. This is safe (much safer
792: than converting bitplane pointers, since the PC always has to be valid)
793: and should speed things up a little.
794: 951029 Some primitive event handling: 2 mouse buttons and 1 joystick button
795: are emulated, as well as parts of the keyboard (only german mapping).
796: Fixes: Delay values and sprite widths are always LoRes. Playfield 2
797: uses colors 9..15.
798: Implemented a frame rate configuration option that can speed up the
799: emulation quite a bit.
800: 951028 A-ha. The 68000 has one strange feature after all. MOVEM.W to Dn sign
801: extends the value to a longword.
802: Katakis expects that accessing odd addresses causes exception 3, so
803: we have to emulate this. *Sigh*
804: Do at least something with the index pulse bit. It's more or less a
805: toggle now.
806: Implemented sprites & dual playfields, both with small glitches.
807: 951027 When LOF is set, the frame is one line longer.
808: 951026 Implemented a preliminary diskfile type for special formats. Turrican
809: boots up correctly (crashes if I want to play a game, though).
810: Implemented EHB and added a few missing masking operations in the color
811: handling.
812: Fixed the absw addressing mode - need to sign extend here as well.
813: 951025 Fixed another extremely stupid bug, this time in the playfield code.
814: Each pixel was calculated four times...
815: Increased the size of the apixels array - this was being overrun.
816: 951024 Fixed an extremely stupid bug in flag settings for byte and word
817: operations.
818: The "sectors until gap" field must be in the range 1..11 instead of
819: 0..10, or very bad things will happen if it is used to calculate a
820: blit size.
821: 951021 Don't use real pointers to fetch bitplane data - too many segfaults.
822: Delay the copper after executing an instruction, or wait sequences like
823: FFDF FFFE 0200 FFFE won't work.
824: Some programs expect that the CPU is completely turned off if the
825: blitter nasty bit is set. So be it.
826: The RSI Megademo chokes when disk DMA fetches two syncs. Leave one out.
827: The LOF bit wasn't set correctly.
828: 951020 Blitter fixes: Load fill carry from FCI each line; keep the masked
829: value of bltadat in bltolda
830: Give the CPU twice as many "cycles" - this still is not even remotely
831: correct, but a better estimate.
832: 951017 Added SVGAlib support. Unfortunately, my graphics card isn't fully
833: supported by the current SVGAlib version.
834: 951015 More small optimizations to memory.h and custom.cc.
835: Added code for 256 color screens. The type of screen has to be
836: selected at compile time.
837: 951014 Modified the memory management to be (hopefully) a little more
838: efficient.
839: Changed gencpu.cc to generate functions and a big function pointer
840: array instead of the old case labels. The generated C++ files now
841: compile a lot faster, and the code should be better as well.
842: 951013 Implemented pseudo POTGOR to keep the RMB from being detected as
843: pressed all the time.
844: GenerateDecTab() generated TRAP incorrectly.
845: Made some more instructions (MOVE.B A0,D0 etc) illegal in gencpu.cc.
846: Fixed X colors. Fixed data fetching for HiRes screens.
847: 951011 EXT.WL instructions set the flags.
848: Implemented second CPU emulator, plus "DualCPU" option. The new CPU
849: emulator is generated automatically from a file called table68k by
850: a program called gencpu.
851: 951002 Removed version information from the file headers.
852: Removed some sillinesses in custom.cc.
853: DSKLEN bug fixed (mask out 0xC000).
854: Playfield code rewritten. Now supports horizontal scrolling. Implemented
855: some primitive color support.
856: 950927 Fixed predecrement/postincrement addressing with byte size for the
857: stack pointer.
858: 950926 Fixes to the disk code: Terminate disk DMA, flip disk side, read more
859: than just two sectors during disk DMA, fix checksum calculation.
860: Fixed copper comparison bugs.
861:
862: 950901 Release 0.1
863: 950826 bugfix in GenerateDecTab(): LEA.W instructions were generated.
864: 950312 New file disk.cc, for (guess what) disk support. Doesn't work yet.
865: 950311 Multiplication instructions were generating 16 bit results.
866: Sign extension was wrong in some places.
867: Removed bugs in the blitter (one word width: ALWM & AFWM and line mode)
868: The Kickstart logo looks perfect now.
869: Playfield routine should check BPLCON0 instead of BLTCON0
870: 950309 ASR D8,D0 is not a valid instruction.
871: Bitplane pointers were not incremented.
872: Copper comparison didn't work. COP2LC and bitplane pointers were written
873: incorrectly. Fixed.
874: Something that bears a striking resemblance to the familiar Kickstart
875: logo now appears in my X window!
876: 950306 ROR used to set the X flag. Bug fixes in GenerateDecTab.
877: More bug fixes in several 68000 instructions.
878: Improved blitter. ?????? KS1.3 doesn't seem to set BLTDMOD on a
879: line draw. What is this??
880: Fixed stupid bugs in playfield code.
881: 950305 fixed bugs in opcode generation and interrupt handling. Implemented
882: STOP. Fixed flag settings: Result wasn't masked. Ooops!!
883: ADDQ #imm,An doesn't set flags.
884: One-shot timer mode didn't work.
885: Implemented blitter, doesn't work.
886: Some primitive and slow playfield support, only to make the things that
887: hopefully will soon appear visible.
888: 950304 CIA timers ought to work OK. Copper is emulated.
889: Emulator loops infinitely when trying to initialize the console.device
890: 950303 experiments with X, figured out how to open a window and draw pixels.
891: No graphics emulation yet, though.
892: 950301 Nearly all instructions work.
893: Fixed supervisor mode stack.
894: The memory manager now handles CIA chips.
895: 950228 Bug fixes in 68000 code, exceptions and more instructions implemented
896: Memory management extended to handle custom chips as well.
897: Debugger improved.
898: Kickstart passes memory & CPU type test, builds up some system
899: structures.
900: 950227 MC68000 & little debugger for tracing. It can execute the first couple
901: of KS1.3 instructions, but doesn't get past the memory test.
902: 950225 Work begun
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