| 1 |
$Id: HISTORY,v 1.1121 2006/02/18 21:03:08 debug Exp $ |
$Id: HISTORY,v 1.1256 2006/06/23 20:43:44 debug Exp $ |
| 2 |
|
|
| 3 |
Changelog for GXemul: |
Changelog for GXemul: |
| 4 |
--------------------- |
--------------------- |
| 2574 |
|
|
| 2575 |
============== RELEASE 0.3.8 ============== |
============== RELEASE 0.3.8 ============== |
| 2576 |
|
|
| 2577 |
|
20060219 Various minor updates. Removing the old MIPS16 skeleton code, |
| 2578 |
|
because it will need to be rewritten for dyntrans anyway. |
| 2579 |
|
20060220-22 Removing the non-working dyntrans backend support. |
| 2580 |
|
Continuing on the 64-bit dyntrans virtual memory generalization. |
| 2581 |
|
20060223 More work on the 64-bit vm generalization. |
| 2582 |
|
20060225 Beginning on MIPS dyntrans load/store instructions. |
| 2583 |
|
Minor PPC updates (64-bit load/store, etc). |
| 2584 |
|
Fixes for the variable-instruction-length framework, some |
| 2585 |
|
minor AVR updates (a simple Hello World program works!). |
| 2586 |
|
Beginning on a skeleton for automatically generating documen- |
| 2587 |
|
tation (for devices etc.). |
| 2588 |
|
20060226 PPC updates (adding some more 64-bit instructions, etc). |
| 2589 |
|
AVR updates (more instructions). |
| 2590 |
|
FINALLY found and fixed the zs bug, making NetBSD/macppc |
| 2591 |
|
accept the serial console. |
| 2592 |
|
20060301 Adding more AVR instructions. |
| 2593 |
|
20060304 Continuing on AVR-related stuff. Beginning on a framework for |
| 2594 |
|
cycle-accurate device emulation. Adding an experimental "PAL |
| 2595 |
|
TV" device (just a dummy so far). |
| 2596 |
|
20060305 Adding more AVR instructions. |
| 2597 |
|
Adding a dummy epcom serial controller (for TS7200 emulation). |
| 2598 |
|
20060310 Removing the emul() command from configuration files, so only |
| 2599 |
|
net() and machine() are supported. |
| 2600 |
|
Minor progress on the MIPS dyntrans rewrite. |
| 2601 |
|
20060311 Continuing on the MIPS dyntrans rewrite (adding more |
| 2602 |
|
instructions, etc). |
| 2603 |
|
20060315 Adding more instructions (sllv, srav, srlv, bgtz[l], blez[l], |
| 2604 |
|
beql, bnel, slti[u], various loads and stores). |
| 2605 |
|
20060316 Removing the ALWAYS_SIGNEXTEND_32 option, since it was rarely |
| 2606 |
|
used. |
| 2607 |
|
Adding more MIPS dyntrans instructions, and fixing bugs. |
| 2608 |
|
20060318 Implementing fast loads/stores for MIPS dyntrans (big/little |
| 2609 |
|
endian, 32-bit and 64-bit modes). |
| 2610 |
|
20060320 Making MIPS dyntrans the default configure option; use |
| 2611 |
|
"--enable-oldmips" to use the old bintrans system. |
| 2612 |
|
Adding MIPS dyntrans dmult[u]; minor updates. |
| 2613 |
|
20060322 Continuing... adding some more instructions. |
| 2614 |
|
Adding a simple skeleton for demangling C++ "_ZN" symbols. |
| 2615 |
|
20060323 Moving src/debugger.c into a new directory (src/debugger/). |
| 2616 |
|
20060324 Fixing the hack used to load PPC ELFs (useful for relocated |
| 2617 |
|
Linux/ppc kernels), and adding a dummy G3 machine mode. |
| 2618 |
|
20060325-26 Beginning to experiment with GDB remote serial protocol |
| 2619 |
|
connections; adding a -G command line option for selecting |
| 2620 |
|
which TCP port to listen to. |
| 2621 |
|
20060330 Beginning a major cleanup to replace things like "0x%016llx" |
| 2622 |
|
with more correct "0x%016"PRIx64, etc. |
| 2623 |
|
Continuing on the GDB remote serial protocol support. |
| 2624 |
|
20060331 More cleanup, and some minor GDB remote progress. |
| 2625 |
|
20060402 Adding a hack to the configure script, to allow compilation |
| 2626 |
|
on systems that lack PRIx64 etc. |
| 2627 |
|
20060406 Removing the temporary FreeBSD/arm hack in dev_ns16550.c and |
| 2628 |
|
replacing it with a better fix from Olivier Houchard. |
| 2629 |
|
20060407 A remote debugger (gdb or ddd) can now start and stop the |
| 2630 |
|
emulator using the GDB remote serial protocol, and registers |
| 2631 |
|
and memory can be read. MIPS only for now. |
| 2632 |
|
20060408 More GDB progress: single-stepping also works, and also adding |
| 2633 |
|
support for ARM, PowerPC, and Alpha targets. |
| 2634 |
|
Continuing on the delay-slot-across-page-boundary issue. |
| 2635 |
|
20060412 Minor update: beginning to add support for the SPARC target |
| 2636 |
|
to the remote GDB functionality. |
| 2637 |
|
20060414 Various MIPS updates: adding more instructions for dyntrans |
| 2638 |
|
(eret, add), and making some exceptions work. Fixing a bug |
| 2639 |
|
in dmult[u]. |
| 2640 |
|
Implementing the first SPARC instructions (sethi, or). |
| 2641 |
|
20060415 Adding "magic trap" instructions so that PROM calls can be |
| 2642 |
|
software emulated in MIPS dyntrans. |
| 2643 |
|
Adding more MIPS dyntrans instructions (ddiv, dadd) and |
| 2644 |
|
fixing another bug in dmult. |
| 2645 |
|
20060416 More MIPS dyntrans progress: adding [d]addi, movn, movz, dsllv, |
| 2646 |
|
rfi, an ugly hack for supporting R2000/R3000 style faked caches, |
| 2647 |
|
preliminary interrupt support, and various other updates and |
| 2648 |
|
bugfixes. |
| 2649 |
|
20060417 Adding more SPARC instructions (add, sub, sll[x], sra[x], |
| 2650 |
|
srl[x]), and useful SPARC header definitions. |
| 2651 |
|
Adding the first (trivial) x86/AMD64 dyntrans instructions (nop, |
| 2652 |
|
cli/sti, stc/clc, std/cld, simple mov, inc ax). Various other |
| 2653 |
|
x86 updates related to variable instruction length stuff. |
| 2654 |
|
Adding unaligned loads/stores to the MIPS dyntrans mode (but |
| 2655 |
|
still using the pre-dyntrans (slow) imlementation). |
| 2656 |
|
20060419 Fixing a MIPS dyntrans exception-in-delay-slot bug. |
| 2657 |
|
Removing the old "show opcode statistics" functionality, since |
| 2658 |
|
it wasn't really useful and isn't implemented for dyntrans. |
| 2659 |
|
Single-stepping (or running with instruction trace) now looks |
| 2660 |
|
ok with dyntrans with delay-slot architectures. |
| 2661 |
|
20060420 Minor hacks (removing the -B command line option when compiled |
| 2662 |
|
for non-bintrans, and some other very minor updates). |
| 2663 |
|
Adding (slow) MIPS dyntrans load-linked/store-conditional. |
| 2664 |
|
20060422 Applying fixes for bugs discovered by Nils Weller's nwcc |
| 2665 |
|
(static DEC memmap => now per machine, and adding an extern |
| 2666 |
|
keyword in cpu_arm_instr.c). |
| 2667 |
|
Finally found one of the MIPS dyntrans bugs that I've been |
| 2668 |
|
looking for (copy/paste spelling error BIG vs LITTLE endian in |
| 2669 |
|
cpu_mips_instr_loadstore.c for 16-bit fast stores). |
| 2670 |
|
FINALLY found the major MIPS dyntrans bug: slti vs sltiu |
| 2671 |
|
signed/unsigned code in cpu_mips_instr.c. :-) |
| 2672 |
|
Adding more MIPS dyntrans instructions (lwc1, swc1, bgezal[l], |
| 2673 |
|
ctc1, tlt[u], tge[u], tne, beginning on rdhwr). |
| 2674 |
|
NetBSD/hpcmips can now reach userland when using dyntrans :-) |
| 2675 |
|
Adding some more x86 dyntrans instructions. |
| 2676 |
|
Finally removed the old Alpha-specific virtual memory code, |
| 2677 |
|
and replaced it with the generic 64-bit version. |
| 2678 |
|
Beginning to add disassembly support for SPECIAL3 MIPS opcodes. |
| 2679 |
|
20060423 Continuing on the delay-slot-across-page-boundary issue; |
| 2680 |
|
adding an end_of_page2 ic slot (like I had planned before, but |
| 2681 |
|
had removed for some reason). |
| 2682 |
|
Adding a quick-and-dirty fallback to legacy coprocessor 1 |
| 2683 |
|
code (i.e. skipping dyntrans implementation for now). |
| 2684 |
|
NetBSD/hpcmips and NetBSD/pmax (when running on an emulated |
| 2685 |
|
R4400) can now be installed and run. :-) (Many bugs left |
| 2686 |
|
to fix, though.) |
| 2687 |
|
Adding more MIPS dyntrans instructions: madd[u], msub[u]. |
| 2688 |
|
Cleaning up the SPECIAL2 vs R5900/TX79/C790 "MMI" opcode |
| 2689 |
|
maps somewhat (disassembly and dyntrans instruction decoding). |
| 2690 |
|
20060424 Adding an isa_revision field to mips_cpu_types.h, and making |
| 2691 |
|
sure that SPECIAL3 opcodes cause Reserved Instruction |
| 2692 |
|
exceptions on MIPS32/64 revisions lower than 2. |
| 2693 |
|
Adding the SPARC 'ba', 'call', 'jmpl/retl', 'and', and 'xor' |
| 2694 |
|
instructions. |
| 2695 |
|
20060425 Removing the -m command line option ("run at most x |
| 2696 |
|
instructions") and -T ("single_step_on_bad_addr"), because |
| 2697 |
|
they never worked correctly with dyntrans anyway. |
| 2698 |
|
Freshening up the man page. |
| 2699 |
|
20060428 Adding more MIPS dyntrans instructions: bltzal[l], idle. |
| 2700 |
|
Enabling MIPS dyntrans compare interrupts. |
| 2701 |
|
20060429 FINALLY found the weird dyntrans bug, causing NetBSD etc. to |
| 2702 |
|
behave strangely: some floating point code (conditional |
| 2703 |
|
coprocessor branches) could not be reused from the old |
| 2704 |
|
non-dyntrans code. The "quick-and-dirty fallback" only appeared |
| 2705 |
|
to work. Fixing by implementing bc1* for MIPS dyntrans. |
| 2706 |
|
More MIPS instructions: [d]sub, sdc1, ldc1, dmtc1, dmfc1, cfc0. |
| 2707 |
|
Freshening up MIPS floating point disassembly appearance. |
| 2708 |
|
20060430 Continuing on C790/R5900/TX79 disassembly; implementing 128-bit |
| 2709 |
|
"por" and "pextlw". |
| 2710 |
|
20060504 Disabling -u (userland emulation) unless compiled as unstable |
| 2711 |
|
development version. |
| 2712 |
|
Beginning on freshening up the testmachine include files, |
| 2713 |
|
to make it easier to reuse those files (placing them in |
| 2714 |
|
src/include/testmachine/), and beginning on a set of "demos" |
| 2715 |
|
or "tutorials" for the testmachine functionality. |
| 2716 |
|
Minor updates to the MIPS GDB remote protocol stub. |
| 2717 |
|
Refreshing doc/experiments.html and gdb_remote.html. |
| 2718 |
|
Enabling Alpha emulation in the stable release configuration, |
| 2719 |
|
even though no guest OSes for Alpha can run yet. |
| 2720 |
|
20060505 Adding a generic 'settings' object, which will contain |
| 2721 |
|
references to settable variables (which will later be possible |
| 2722 |
|
to access using the debugger). |
| 2723 |
|
20060506 Updating dev_disk and corresponding demo/documentation (and |
| 2724 |
|
switching from SCSI to IDE disk types, so it actually works |
| 2725 |
|
with current test machines :-). |
| 2726 |
|
20060510 Adding a -D_LARGEFILE_SOURCE hack for 64-bit Linux hosts, |
| 2727 |
|
so that fseeko() doesn't give a warning. |
| 2728 |
|
Updating the section about how dyntrans works (the "runnable |
| 2729 |
|
IR") in doc/intro.html. |
| 2730 |
|
Instruction updates (some x64=1 checks, some more R5900 |
| 2731 |
|
dyntrans stuff: better mul/mult separation from MIPS32/64, |
| 2732 |
|
adding ei and di). |
| 2733 |
|
Updating MIPS cpuregs.h to a newer one (from NetBSD). |
| 2734 |
|
Adding more MIPS dyntrans instructions: deret, ehb. |
| 2735 |
|
20060514 Adding disassembly and beginning implementation of SPARC wr |
| 2736 |
|
and wrpr instructions. |
| 2737 |
|
20060515 Adding a SUN SPARC machine mode, with dummy SS20 and Ultra1 |
| 2738 |
|
machines. Adding the 32-bit "rd psr" instruction. |
| 2739 |
|
20060517 Disassembly support for the general SPARC rd instruction. |
| 2740 |
|
Partial implementation of the cmp (subcc) instruction. |
| 2741 |
|
Some other minor updates (making sure that R5900 processors |
| 2742 |
|
start up with the EIE bit enabled, otherwise Linux/playstation2 |
| 2743 |
|
receives no interrupts). |
| 2744 |
|
20060519 Minor MIPS updates/cleanups. |
| 2745 |
|
20060521 Moving the MeshCube machine into evbmips; this seems to work |
| 2746 |
|
reasonably well with a snapshot of a NetBSD MeshCube kernel. |
| 2747 |
|
Cleanup/fix of MIPS config0 register initialization. |
| 2748 |
|
20060529 Minor MIPS fixes, including a sign-extension fix to the |
| 2749 |
|
unaligned load/store code, which makes NetBSD/pmax on R3000 |
| 2750 |
|
work better with dyntrans. (Ultrix and Linux/DECstation still |
| 2751 |
|
don't work, though.) |
| 2752 |
|
20060530 Minor updates to the Alpha machine mode: adding an AlphaBook |
| 2753 |
|
mode, an LCA bus (forwarding accesses to an ISA bus), etc. |
| 2754 |
|
20060531 Applying a bugfix for the MIPS dyntrans sc[d] instruction from |
| 2755 |
|
Ondrej Palkovsky. (Many thanks.) |
| 2756 |
|
20060601 Minifix to allow ARM immediate msr instruction to not give |
| 2757 |
|
an error for some valid values. |
| 2758 |
|
More Alpha updates. |
| 2759 |
|
20060602 Some minor Alpha updates. |
| 2760 |
|
20060603 Adding the Alpha cmpbge instruction. NetBSD/alpha prints its |
| 2761 |
|
first boot messages :-) on an emulated Alphabook 1. |
| 2762 |
|
20060612 Minor updates; adding a dev_ether.h include file for the |
| 2763 |
|
testmachine ether device. Continuing the hunt for the dyntrans |
| 2764 |
|
bug which makes Linux and Ultrix on DECstation behave |
| 2765 |
|
strangely... FINALLY found it! It seems to be related to |
| 2766 |
|
invalidation of the translation cache, on tlbw{r,i}. There |
| 2767 |
|
also seems to be some remaining interrupt-related problems. |
| 2768 |
|
20060614 Correcting the implementation of ldc1/sdc1 for MIPS dyntrans |
| 2769 |
|
(so that it uses 16 32-bit registers if the FR bit in the |
| 2770 |
|
status register is not set). |
| 2771 |
|
20060616 REMOVING BINTRANS COMPLETELY! |
| 2772 |
|
Removing the old MIPS interpretation mode. |
| 2773 |
|
Removing the MFHILO_DELAY and instruction delay stuff, because |
| 2774 |
|
they wouldn't work with dyntrans anyway. |
| 2775 |
|
20060617 Some documentation updates (adding "NetBSD-archive" to some |
| 2776 |
|
URLs, and new Debian/DECstation installation screenshots). |
| 2777 |
|
Removing the "tracenull" and "enable-caches" configure options. |
| 2778 |
|
Improving MIPS dyntrans performance somewhat (only invalidate |
| 2779 |
|
translations if necessary, on writes to the entryhi register, |
| 2780 |
|
instead of doing it for all cop0 writes). |
| 2781 |
|
20060618 More cleanup after the removal of the old MIPS emulation. |
| 2782 |
|
Trying to fix the MIPS dyntrans performance bugs/bottlenecks; |
| 2783 |
|
only semi-successful so far (for R3000). |
| 2784 |
|
20060620 Minor update to allow clean compilation again on Tru64/Alpha. |
| 2785 |
|
20060622 MIPS cleanup and fixes (removing the pc_last stuff, which |
| 2786 |
|
doesn't make sense with dyntrans anyway, and fixing a cross- |
| 2787 |
|
page-delay-slot-with-exception case in end_of_page). |
| 2788 |
|
Removing the old max_random_cycles_per_chunk stuff, and the |
| 2789 |
|
concept of cycles vs instructions for MIPS emulation. |
| 2790 |
|
FINALLY found and fixed the bug which caused NetBSD/pmax |
| 2791 |
|
clocks to behave strangely (it was a load to the zero register, |
| 2792 |
|
which was treated as a NOP; now it is treated as a load to a |
| 2793 |
|
dummy scratch register). |
| 2794 |
|
20060623 Increasing the dyntrans chunk size back to |
| 2795 |
|
N_SAFE_DYNTRANS_LIMIT, instead of N_SAFE_DYNTRANS_LIMIT/2. |
| 2796 |
|
Preparing for a quick release, even though there are known |
| 2797 |
|
bugs, and performance for non-R3000 MIPS emulation is very |
| 2798 |
|
poor. :-/ |
| 2799 |
|
Reverting to half the dyntrans chunk size again, because |
| 2800 |
|
NetBSD/cats seemed less stable with full size chunks. :( |
| 2801 |
|
NetBSD/sgimips 3.0 can now run :-) (With release 0.3.8, only |
| 2802 |
|
NetBSD/sgimips 2.1 worked, not 3.0.) |
| 2803 |
|
|
| 2804 |
|
============== RELEASE 0.4.0 ============== |
| 2805 |
|
|
Parent Directory
| 
Revision Log
| 
Patch