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Revision Log
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1613 2007/06/15 20:11:26 debug Exp $
20070501 Continuing a little on m88k disassembly (control registers,
more instructions).
Adding a dummy mvme88k machine mode.
20070502 Re-adding MIPS load/store alignment exceptions.
20070503 Implementing more of the M88K disassembly code.
20070504 Adding disassembly of some more M88K load/store instructions.
Implementing some relatively simple M88K instructions (br.n,
xor[.u] imm, and[.u] imm).
20070505 Implementing M88K three-register and, or, xor, and jmp[.n],
bsr[.n] including function call trace stuff.
Applying a patch from Bruce M. Simpson which implements the
SYSCON_BOARD_CPU_CLOCK_FREQ_ID object of the syscon call in
the yamon PROM emulation.
20070506 Implementing M88K bb0[.n] and bb1[.n], and skeletons for
ldcr and stcr (although no control regs are implemented yet).
20070509 Found and fixed the bug which caused Linux for QEMU_MIPS to
stop working in 0.4.5.1: It was a faulty change to the MIPS
'sc' and 'scd' instructions I made while going through gcc -W
warnings on 20070428.
20070510 Updating the Linux/QEMU_MIPS section in guestoses.html to
use mips-test-0.2.tar.gz instead of 0.1.
A big thank you to Miod Vallat for sending me M88K manuals.
Implementing more M88K instructions (addu, subu, div[u], mulu,
ext[u], clr, set, cmp).
20070511 Fixing bugs in the M88K "and" and "and.u" instructions (found
by comparing against the manual).
Implementing more M88K instructions (mask[.u], mak, bcnd (auto-
generated)) and some more control register details.
Cleanup: Removing the experimental AVR emulation mode and
corresponding devices; AVR emulation wasn't really meaningful.
Implementing autogeneration of most M88K loads/stores. The
rectangle drawing demo (with -O0) for M88K runs :-)
Beginning on M88K exception handling.
More M88K instructions: tb0, tb1, rte, sub, jsr[.n].
Adding some skeleton MVME PROM ("BUG") emulation.
20070512 Fixing a bug in the M88K cmp instruction.
Adding the M88K lda (scaled register) instruction.
Fixing bugs in 64-bit (32-bit pairs) M88K loads/stores.
Removing the unused tick_hz stuff from the machine struct.
Implementing the M88K xmem instruction. OpenBSD/mvme88k gets
far enough to display the Copyright banner :-)
Implementing subu.co (guess), addu.co, addu.ci, ff0, and ff1.
Adding a dev_mvme187, for MVME187-specific devices/registers.
OpenBSD/mvme88k prints more boot messages. :)
20070515 Continuing on MVME187 emulation (adding more devices, beginning
on the CMMUs, etc).
Adding the M88K and.c, xor.c, and or.c instructions, and making
sure that mul, div, etc cause exceptions if executed when SFD1
is disabled.
20070517 Continuing on M88K and MVME187 emulation in general; moving
the CMMU registers to the CPU struct, separating dev_pcc2 from
dev_mvme187, and beginning on memory_m88k.c (BATC and PATC).
Fixing a bug in 64-bit (32-bit pairs) M88K fast stores.
Implementing the clock part of dev_mk48txx.
Implementing the M88K fstcr and xcr instructions.
Implementing m88k_cpu_tlbdump().
Beginning on the implementation of a separate address space
for M88K .usr loads/stores.
20070520 Removing the non-working (skeleton) Sandpoint, SonyNEWS, SHARK
Dnard, and Zaurus machine modes.
Experimenting with dyntrans to_be_translated read-ahead. It
seems to give a very small performance increase for MIPS
emulation, but a large performance degradation for SuperH. Hm.
20070522 Disabling correct SuperH ITLB emulation; it does not seem to be
necessary in order to let SH4 guest OSes run, and it slows down
userspace code.
Implementing "samepage" branches for SuperH emulation, and some
other minor speed hacks.
20070525 Continuing on M88K memory-related stuff: exceptions, memory
transaction register contents, etc.
Implementing the M88K subu.ci instruction.
Removing the non-working (skeleton) Iyonix machine mode.
OpenBSD/mvme88k reaches userland :-), starts executing
/sbin/init's instructions, and issues a few syscalls, before
crashing.
20070526 Fixing bugs in dev_mk48txx, so that OpenBSD/mvme88k detects
the correct time-of-day.
Implementing a generic IRQ controller for the test machines
(dev_irqc), similar to a proposed patch from Petr Stepan.
Experimenting some more with translation read-ahead.
Adding an "expect" script for automated OpenBSD/landisk
install regression/performance tests.
20070527 Adding a dummy mmEye (SH3) machine mode skeleton.
FINALLY found the strange M88K bug I have been hunting: I had
not emulated the SNIP value for exceptions occurring in
branch delay slots correctly.
Implementing correct exceptions for 64-bit M88K loads/stores.
Address to symbol lookups are now disabled when M88K is
running in usermode (because usermode addresses don't have
anything to do with supervisor addresses).
20070531 Removing the mmEye machine mode skeleton.
20070604 Some minor code cleanup.
20070605 Moving src/useremul.c into a subdir (src/useremul/), and
cleaning up some more legacy constructs.
Adding -Wstrict-aliasing and -fstrict-aliasing detection to
the configure script.
20070606 Adding a check for broken GCC on Solaris to the configure
script. (GCC 3.4.3 on Solaris cannot handle static variables
which are initialized to 0 or NULL. :-/)
Removing the old (non-working) ARC emulation modes: NEC RD94,
R94, R96, and R98, and the last traces of Olivetti M700 and
Deskstation Tyne.
Removing the non-working skeleton WDSC device (dev_wdsc).
20070607 Thinking about how to use the host's cc + ld at runtime to
generate native code. (See experiments/native_cc_ld_test.i
for an example.)
20070608 Adding a program counter sampling timer, which could be useful
for native code generation experiments.
The KN02_CSR_NRMMOD bit in the DECstation 5000/200 (KN02) CSR
should always be set, to allow a 5000/200 PROM to boot.
20070609 Moving out breakpoint details from the machine struct into
a helper struct, and removing the limit on max nr of
breakpoints.
20070610 Moving out tick functions into a helper struct as well (which
also gets rid of the max limit).
20070612 FINALLY figured out why Debian/DECstation stopped working when
translation read-ahead was enabled: in src/memory_rw.c, the
call to invalidate_code_translation was made also if the
memory access was an instruction load (if the page was mapped
as writable); it shouldn't be called in that case.
20070613 Implementing some more MIPS32/64 revision 2 instructions: di,
ei, ext, dext, dextm, dextu, and ins.
20070614 Implementing an instruction combination for the NetBSD/arm
idle loop (making the host not use any cpu if NetBSD/arm
inside the emulator is not using any cpu).
Increasing the nr of ARM VPH entries from 128 to 384.
20070615 Removing the ENABLE_arch stuff from the configure script, so
that all included architectures are included in both release
and development builds.
Moving memory related helper functions from misc.c to memory.c.
Adding preliminary instructions for netbooting NetBSD/pmppc to
guestoses.html; it doesn't work yet, there are weird timeouts.
Beginning a total rewrite of the userland emulation modes
(removing all emulation modes, beginning from scratch with
NetBSD/MIPS and FreeBSD/Alpha only).
20070616 After fixing a bug in the DEC21143 NIC (the TDSTAT_OWN bit was
only cleared for the last segment when transmitting, not all
segments), NetBSD/pmppc boots with root-on-nfs without the
timeouts. Updating guestoses.html.
Removing the skeleton PSP (Playstation Portable) mode.
Moving X11-related stuff in the machine struct into a helper
struct.
Cleanup of out-of-memory checks, to use a new CHECK_ALLOCATION
macro (which prints a meaningful error message).
Adding a COMMENT to each machine and device (for automagic
.index comment generation).
Doing regression testing for the next release.
============== RELEASE 0.4.6 ==============
| 1 | #ifndef MISC_H |
| 2 | #define MISC_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2003-2007 Anders Gavare. All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions are met: |
| 9 | * |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. The name of the author may not be used to endorse or promote products |
| 16 | * derived from this software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 28 | * SUCH DAMAGE. |
| 29 | * |
| 30 | * |
| 31 | * $Id: misc.h,v 1.257 2007/06/15 17:12:31 debug Exp $ |
| 32 | * |
| 33 | * Misc. definitions for gxemul. |
| 34 | */ |
| 35 | |
| 36 | |
| 37 | #include <sys/types.h> |
| 38 | #include <inttypes.h> |
| 39 | |
| 40 | /* |
| 41 | * ../../config.h contains #defines set by the configure script. Some of these |
| 42 | * might reduce speed of the emulator, so don't enable them unless you |
| 43 | * need them. |
| 44 | */ |
| 45 | |
| 46 | #include "../../config.h" |
| 47 | |
| 48 | |
| 49 | #ifdef NO_C99_PRINTF_DEFINES |
| 50 | /* |
| 51 | * This is a SUPER-UGLY HACK which happens to work on some machines. |
| 52 | * The correct solution is to upgrade your compiler to C99. |
| 53 | */ |
| 54 | #ifdef NO_C99_64BIT_LONGLONG |
| 55 | #define PRIi8 "i" |
| 56 | #define PRIi16 "i" |
| 57 | #define PRIi32 "i" |
| 58 | #define PRIi64 "lli" |
| 59 | #define PRIx8 "x" |
| 60 | #define PRIx16 "x" |
| 61 | #define PRIx32 "x" |
| 62 | #define PRIx64 "llx" |
| 63 | #else |
| 64 | #define PRIi8 "i" |
| 65 | #define PRIi16 "i" |
| 66 | #define PRIi32 "i" |
| 67 | #define PRIi64 "li" |
| 68 | #define PRIx8 "x" |
| 69 | #define PRIx16 "x" |
| 70 | #define PRIx32 "x" |
| 71 | #define PRIx64 "lx" |
| 72 | #endif |
| 73 | #endif |
| 74 | |
| 75 | |
| 76 | #ifdef NO_MAP_ANON |
| 77 | #ifdef mmap |
| 78 | #undef mmap |
| 79 | #endif |
| 80 | #include <fcntl.h> |
| 81 | #include <stdlib.h> |
| 82 | #include <sys/mman.h> |
| 83 | static void *no_map_anon_mmap(void *addr, size_t len, int prot, int flags, |
| 84 | int nonsense_fd, off_t offset) |
| 85 | { |
| 86 | void *p; |
| 87 | int fd = open("/dev/zero", O_RDWR); |
| 88 | if (fd < 0) { |
| 89 | fprintf(stderr, "Could not open /dev/zero\n"); |
| 90 | exit(1); |
| 91 | } |
| 92 | |
| 93 | printf("addr=%p len=%lli prot=0x%x flags=0x%x nonsense_fd=%i " |
| 94 | "offset=%16lli\n", addr, (long long) len, prot, flags, |
| 95 | nonsense_fd, (long long) offset); |
| 96 | |
| 97 | p = mmap(addr, len, prot, flags, fd, offset); |
| 98 | |
| 99 | printf("p = %p\n", p); |
| 100 | |
| 101 | /* TODO: Close the descriptor? */ |
| 102 | return p; |
| 103 | } |
| 104 | #define mmap no_map_anon_mmap |
| 105 | #endif |
| 106 | |
| 107 | |
| 108 | struct cpu; |
| 109 | struct emul; |
| 110 | struct machine; |
| 111 | struct memory; |
| 112 | |
| 113 | |
| 114 | #define NO_BYTE_ORDER_OVERRIDE -1 |
| 115 | #define EMUL_UNDEFINED_ENDIAN 0 |
| 116 | #define EMUL_LITTLE_ENDIAN 1 |
| 117 | #define EMUL_BIG_ENDIAN 2 |
| 118 | |
| 119 | #ifdef HOST_LITTLE_ENDIAN |
| 120 | #define LE16_TO_HOST(x) (x) |
| 121 | #define BE16_TO_HOST(x) ((((x) & 0xff00) >> 8) | (((x)&0xff) << 8)) |
| 122 | #else |
| 123 | #define LE16_TO_HOST(x) ((((x) & 0xff00) >> 8) | (((x)&0xff) << 8)) |
| 124 | #define BE16_TO_HOST(x) (x) |
| 125 | #endif |
| 126 | |
| 127 | #ifdef HOST_LITTLE_ENDIAN |
| 128 | #define LE32_TO_HOST(x) (x) |
| 129 | #define BE32_TO_HOST(x) ((((x) & 0xff000000) >> 24) | (((x)&0xff) << 24) | \ |
| 130 | (((x) & 0xff0000) >> 8) | (((x) & 0xff00) << 8)) |
| 131 | #else |
| 132 | #define LE32_TO_HOST(x) ((((x) & 0xff000000) >> 24) | (((x)&0xff) << 24) | \ |
| 133 | (((x) & 0xff0000) >> 8) | (((x) & 0xff00) << 8)) |
| 134 | #define BE32_TO_HOST(x) (x) |
| 135 | #endif |
| 136 | |
| 137 | #ifdef HOST_LITTLE_ENDIAN |
| 138 | #define LE64_TO_HOST(x) (x) |
| 139 | #define BE64_TO_HOST(x) ( (((x) >> 56) & 0xff) + \ |
| 140 | ((((x) >> 48) & 0xff) << 8) + \ |
| 141 | ((((x) >> 40) & 0xff) << 16) + \ |
| 142 | ((((x) >> 32) & 0xff) << 24) + \ |
| 143 | ((((x) >> 24) & 0xff) << 32) + \ |
| 144 | ((((x) >> 16) & 0xff) << 40) + \ |
| 145 | ((((x) >> 8) & 0xff) << 48) + \ |
| 146 | (((x) & 0xff) << 56) ) |
| 147 | #else |
| 148 | #define BE64_TO_HOST(x) (x) |
| 149 | #define LE64_TO_HOST(x) ( (((x) >> 56) & 0xff) + \ |
| 150 | ((((x) >> 48) & 0xff) << 8) + \ |
| 151 | ((((x) >> 40) & 0xff) << 16) + \ |
| 152 | ((((x) >> 32) & 0xff) << 24) + \ |
| 153 | ((((x) >> 24) & 0xff) << 32) + \ |
| 154 | ((((x) >> 16) & 0xff) << 40) + \ |
| 155 | ((((x) >> 8) & 0xff) << 48) + \ |
| 156 | (((x) & 0xff) << 56) ) |
| 157 | #endif |
| 158 | |
| 159 | |
| 160 | /* Debug stuff: */ |
| 161 | #define DEBUG_BUFSIZE 1024 |
| 162 | #define DEBUG_INDENTATION 4 |
| 163 | |
| 164 | |
| 165 | #ifdef HAVE___FUNCTION__ |
| 166 | |
| 167 | #define FAILURE(error_msg) { \ |
| 168 | char where_msg[400]; \ |
| 169 | snprintf(where_msg, sizeof(where_msg), \ |
| 170 | "%s, line %i, function '%s'\n", \ |
| 171 | __FILE__, __LINE__, __FUNCTION__); \ |
| 172 | fprintf(stderr, "%s: %s\n", error_msg, where_msg); \ |
| 173 | exit(1); \ |
| 174 | } |
| 175 | |
| 176 | #else |
| 177 | |
| 178 | #define FAILURE(error_msg) { \ |
| 179 | char where_msg[400]; \ |
| 180 | snprintf(where_msg, sizeof(where_msg), \ |
| 181 | "%s, line %i\n", __FILE__, __LINE__); \ |
| 182 | fprintf(stderr, "%s: %s\n", error_msg, where_msg); \ |
| 183 | exit(1); \ |
| 184 | } |
| 185 | |
| 186 | #endif /* !HAVE___FUNCTION__ */ |
| 187 | |
| 188 | |
| 189 | #define CHECK_ALLOCATION(ptr) { \ |
| 190 | if ((ptr) == NULL) \ |
| 191 | FAILURE("Out of memory"); \ |
| 192 | } |
| 193 | |
| 194 | |
| 195 | /* bootblock.c: */ |
| 196 | int load_bootblock(struct machine *m, struct cpu *cpu, |
| 197 | int *n_loadp, char ***load_namesp); |
| 198 | |
| 199 | |
| 200 | /* bootblock_apple.c: */ |
| 201 | int apple_load_bootblock(struct machine *m, struct cpu *cpu, |
| 202 | int disk_id, int disk_type, int *n_loadp, char ***load_namesp); |
| 203 | |
| 204 | |
| 205 | /* bootblock_iso9660.c: */ |
| 206 | int iso_load_bootblock(struct machine *m, struct cpu *cpu, |
| 207 | int disk_id, int disk_type, int iso_type, unsigned char *buf, |
| 208 | int *n_loadp, char ***load_namesp); |
| 209 | |
| 210 | |
| 211 | /* dec_prom.c: */ |
| 212 | int decstation_prom_emul(struct cpu *cpu); |
| 213 | |
| 214 | |
| 215 | /* dreamcast.c: */ |
| 216 | void dreamcast_machine_setup(struct machine *); |
| 217 | int dreamcast_emul(struct cpu *cpu); |
| 218 | |
| 219 | |
| 220 | /* dreamcast_scramble.c: */ |
| 221 | void dreamcast_descramble(char *from, char *to); |
| 222 | |
| 223 | |
| 224 | /* file.c: */ |
| 225 | int file_n_executables_loaded(void); |
| 226 | void file_load(struct machine *machine, struct memory *mem, |
| 227 | char *filename, uint64_t *entrypointp, |
| 228 | int arch, uint64_t *gpp, int *byte_order, uint64_t *tocp); |
| 229 | |
| 230 | |
| 231 | /* main.c: */ |
| 232 | void debug_indentation(int diff); |
| 233 | void debug(char *fmt, ...); |
| 234 | void fatal(char *fmt, ...); |
| 235 | |
| 236 | |
| 237 | /* misc.c: */ |
| 238 | unsigned long long mystrtoull(const char *s, char **endp, int base); |
| 239 | int mymkstemp(char *template); |
| 240 | #ifdef USE_STRLCPY_REPLACEMENTS |
| 241 | size_t mystrlcpy(char *dst, const char *src, size_t size); |
| 242 | size_t mystrlcat(char *dst, const char *src, size_t size); |
| 243 | #endif |
| 244 | void print_separator_line(void); |
| 245 | |
| 246 | |
| 247 | /* mvmeprom.c: */ |
| 248 | void mvmeprom_init(struct machine *machine); |
| 249 | int mvmeprom_emul(struct cpu *cpu); |
| 250 | |
| 251 | |
| 252 | /* ps2_bios.c: */ |
| 253 | int playstation2_sifbios_emul(struct cpu *cpu); |
| 254 | |
| 255 | |
| 256 | /* sh_ipl_g.c: */ |
| 257 | void sh_ipl_g_emul_init(struct machine *machine); |
| 258 | int sh_ipl_g_emul(struct cpu *); |
| 259 | |
| 260 | |
| 261 | /* yamon.c: */ |
| 262 | void yamon_machine_setup(struct machine *machine, uint64_t env); |
| 263 | int yamon_emul(struct cpu *); |
| 264 | |
| 265 | |
| 266 | #endif /* MISC_H */ |
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