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Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.4.1 |
Release notes for Gavare's eXperimental Emulator (GXemul), 0.4.5 |
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================================================================== |
================================================================ |
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Copyright (C) 2003-2007 Anders Gavare. |
Copyright (C) 2003-2007 Anders Gavare. |
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systems are probably NetBSD/pmax and NetBSD/cats. |
systems are probably NetBSD/pmax and NetBSD/cats. |
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Changes between release 0.4.3 and 0.4.4.1 include, among other things: |
The changes between release 0.4.4.1 and 0.4.5 include, among other things: |
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o) The interrupt subsystem has been redesigned. This means two things: |
o) Initial support for "disk overlays" has been implemented. This |
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enables e.g. simple roll-back of emulated disk contents to a |
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previous state. |
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o) Dyntrans bug fixes; code translations on physical addresses that |
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were offset a multiple of 128 MB from each other could either |
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cause weird bugs, or translation leaks (leading to unnecessary |
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dyntrans cache overflows). |
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o) Some cleanup: The GDB debugging stub support, some dummy machine |
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modes (TS7200, Walnut, PB1000, and Meshcube), and some dummy or |
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experimental CPUs (RCA180x and Transputer) have been removed, to |
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make the emulator slightly more maintainable. |
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x) Internal code cleanup, which makes the whole emulator more |
Please read the HISTORY file for more details. |
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maintainable. Instead of using magically encoded integers |
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for interrupts, strings are now used. These strings are in |
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the form of "paths", so that devices and busses can more |
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easily be connected to other busses, devices, or CPUs. |
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x) Some machine types which happened to work in release 0.4.3, |
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but were not listed in the documentation as working, may |
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have stopped working now. As always, the documentation should |
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indicate the combinations of machine modes and guest OSes that |
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are supposed to work. |
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o) SuperH (SH4) emulation is now somewhat more stable. |
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x) GXemul 0.4.4: A NetBSD/dreamcast Live CD works. |
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x) GXemul 0.4.4.1: A Linux/dreamcast Live CD also works. |
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o) PowerPC "G4" emulation is now stable enough to let NetBSD/macppc |
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run from a disk image. (Installing actually worked before, but the |
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NetBSD/macppc GENERIC kernel uses AltiVec instructions which were |
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not implemented correctly.) |
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o) The PICA-61 (arc) and i80321 (evbarm) emulation modes now have their |
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timers fixed at 100 Hz. A hardcoded speed like this is very ugly, but |
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it is at least better than before (when the timer wasn't really |
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running at any specific speed at all). |
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Please read the HISTORY files for more details. |
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Files included in this release are: |
Files included in this release are: |
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If you have found GXemul useful in some way, or feel like sending me comments |
If you have found GXemul useful in some way, or feel like sending me comments |
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or feedback in general, then mail me at anders(at)gavare.se. |
or feedback in general, then mail me at anders(At)gavare.se. |
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