Commit fd429f2f6cbc77dc5440725ede80df614787ece3
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update
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@66 c046a42c-6fe2-441c-8c8c-71466251a162
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Makefile
... | ... | @@ -19,6 +19,10 @@ ifeq ($(ARCH),ppc) |
19 | 19 | OP_CFLAGS=$(CFLAGS) |
20 | 20 | endif |
21 | 21 | |
22 | +ifeq ($(ARCH),s390) | |
23 | +OP_CFLAGS=$(CFLAGS) | |
24 | +endif | |
25 | + | |
22 | 26 | ifeq ($(GCC_MAJOR),3) |
23 | 27 | # very important to generate a return at the end of every operation |
24 | 28 | OP_CFLAGS+=-fno-reorder-blocks -fno-optimize-sibling-calls |
... | ... | @@ -94,19 +98,20 @@ qemu-doc.html: qemu-doc.texi |
94 | 98 | texi2html -monolithic -number $< |
95 | 99 | |
96 | 100 | FILES= \ |
97 | -README COPYING COPYING.LIB TODO Changelog VERSION \ | |
98 | -dyngen.c ioctls.h ops_template.h syscall_types.h\ | |
101 | +README README.distrib COPYING COPYING.LIB TODO Changelog VERSION \ | |
102 | +dyngen.c ioctls.h ops_template.h op_string.h syscall_types.h\ | |
99 | 103 | Makefile elf.h linux_bin.h segment.h thunk.c\ |
100 | 104 | elfload.c main.c signal.c thunk.h\ |
101 | -cpu-i386.h qemu.h op-i386.c opc-i386.h syscall-i386.h translate-i386.c\ | |
105 | +cpu-i386.h qemu.h op-i386.c opc-i386.h syscall-i386.h translate-i386.c\ | |
102 | 106 | dis-asm.h gen-i386.h op-i386.h syscall.c\ |
103 | 107 | dis-buf.c i386-dis.c opreg_template.h syscall_defs.h\ |
104 | -i386.ld ppc.ld exec-i386.h exec-i386.c configure \ | |
108 | +i386.ld ppc.ld s390.ld exec-i386.h exec-i386.c configure \ | |
105 | 109 | tests/Makefile\ |
106 | 110 | tests/test-i386.c tests/test-i386-shift.h tests/test-i386.h\ |
107 | 111 | tests/test-i386-muldiv.h tests/test-i386-code16.S\ |
108 | 112 | tests/hello.c tests/hello tests/sha1.c \ |
109 | 113 | tests/testsig.c tests/testclone.c tests/testthread.c \ |
114 | +tests/runcom.c tests/pi_10.com \ | |
110 | 115 | qemu-doc.texi qemu-doc.html |
111 | 116 | |
112 | 117 | FILE=qemu-$(VERSION) | ... | ... |
VERSION
qemu-doc.texi
... | ... | @@ -12,8 +12,9 @@ |
12 | 12 | QEMU is an x86 processor emulator. Its purpose is to run x86 Linux |
13 | 13 | processes on non-x86 Linux architectures such as PowerPC or ARM. By |
14 | 14 | using dynamic translation it achieves a reasonnable speed while being |
15 | -easy to port on new host CPUs. An obviously interesting x86 only process | |
16 | -is 'wine' (Windows emulation). | |
15 | +easy to port on new host CPUs. Its main goal is to be able to launch the | |
16 | +@code{Wine} Windows API emulator (@url{http://www.winehq.org}) on | |
17 | +non-x86 CPUs. | |
17 | 18 | |
18 | 19 | QEMU features: |
19 | 20 | |
... | ... | @@ -21,12 +22,13 @@ QEMU features: |
21 | 22 | |
22 | 23 | @item User space only x86 emulator. |
23 | 24 | |
24 | -@item Currently ported on i386 and PowerPC. | |
25 | +@item Currently ported on i386, PowerPC and S390. | |
25 | 26 | |
26 | -@item Using dynamic translation for reasonnable speed. | |
27 | +@item Using dynamic translation to native code for reasonnable speed. | |
27 | 28 | |
28 | 29 | @item The virtual x86 CPU supports 16 bit and 32 bit addressing with segmentation. |
29 | -User space LDT and GDT are emulated. | |
30 | +User space LDT and GDT are emulated. VM86 mode is also supported | |
31 | +(experimental). | |
30 | 32 | |
31 | 33 | @item Generic Linux system call converter, including most ioctls. |
32 | 34 | |
... | ... | @@ -52,10 +54,6 @@ Current QEMU Limitations: |
52 | 54 | |
53 | 55 | @item No support for self modifying code (yet). [Very few programs need that, a notable exception is QEMU itself !]. |
54 | 56 | |
55 | -@item No VM86 mode (yet), althought the virtual | |
56 | -CPU has support for most of it. [VM86 support is useful to launch old 16 | |
57 | -bit DOS programs with dosemu or wine]. | |
58 | - | |
59 | 57 | @item No SSE/MMX support (yet). |
60 | 58 | |
61 | 59 | @item No x86-64 support. |
... | ... | @@ -123,10 +121,10 @@ able to do: |
123 | 121 | qemu /usr/local/qemu-i386/bin/ls-i386 |
124 | 122 | @end example |
125 | 123 | |
126 | -@item Download the binary x86 wine install | |
124 | +@item Download the binary x86 Wine install | |
127 | 125 | (@file{qemu-i386-wine.tar.gz} on the QEMU web page). |
128 | 126 | |
129 | -@item Configure wine on your account. Look at the provided script | |
127 | +@item Configure Wine on your account. Look at the provided script | |
130 | 128 | @file{/usr/local/qemu-i386/bin/wine-conf.sh}. Your previous |
131 | 129 | @code{$@{HOME@}/.wine} directory is saved to @code{$@{HOME@}/.wine.org}. |
132 | 130 | |
... | ... | @@ -177,6 +175,13 @@ code, in particular the ELF file loader). EM86 was limited to an alpha |
177 | 175 | host and used a proprietary and slow interpreter (the interpreter part |
178 | 176 | of the FX!32 Digital Win32 code translator [5]). |
179 | 177 | |
178 | +TWIN [6] is a Windows API emulator like Wine. It is less accurate than | |
179 | +Wine but includes a protected mode x86 interpreter to launch x86 Windows | |
180 | +executables. Such an approach as greater potential because most of the | |
181 | +Windows API is executed natively but it is far more difficult to develop | |
182 | +because all the data structures and function parameters exchanged | |
183 | +between the API and the x86 code must be converted. | |
184 | + | |
180 | 185 | @section Portable dynamic translation |
181 | 186 | |
182 | 187 | QEMU is a dynamic translator. When it first encounters a piece of code, |
... | ... | @@ -218,7 +223,7 @@ doing complicated register allocation. |
218 | 223 | Good CPU condition codes emulation (@code{EFLAGS} register on x86) is a |
219 | 224 | critical point to get good performances. QEMU uses lazy condition code |
220 | 225 | evaluation: instead of computing the condition codes after each x86 |
221 | -instruction, it store justs one operand (called @code{CC_CRC}), the | |
226 | +instruction, it just stores one operand (called @code{CC_SRC}), the | |
222 | 227 | result (called @code{CC_DST}) and the type of operation (called |
223 | 228 | @code{CC_OP}). |
224 | 229 | |
... | ... | @@ -231,7 +236,7 @@ generated simple instructions (see |
231 | 236 | the condition codes are not needed by the next instructions, no |
232 | 237 | condition codes are computed at all. |
233 | 238 | |
234 | -@section Translation CPU state optimisations | |
239 | +@section CPU state optimisations | |
235 | 240 | |
236 | 241 | The x86 CPU has many internal states which change the way it evaluates |
237 | 242 | instructions. In order to achieve a good speed, the translation phase |
... | ... | @@ -323,6 +328,10 @@ x86 emulator on Alpha-Linux. |
323 | 328 | DIGITAL FX!32: Running 32-Bit x86 Applications on Alpha NT, by Anton |
324 | 329 | Chernoff and Ray Hookway. |
325 | 330 | |
331 | +@item [6] | |
332 | +@url{http://www.willows.com/}, Windows API library emulation from | |
333 | +Willows Software. | |
334 | + | |
326 | 335 | @end table |
327 | 336 | |
328 | 337 | @chapter Regression Tests |
... | ... | @@ -365,3 +374,9 @@ It is a simple benchmark. Care must be taken to interpret the results |
365 | 374 | because it mostly tests the ability of the virtual CPU to optimize the |
366 | 375 | @code{rol} x86 instruction and the condition code computations. |
367 | 376 | |
377 | +@section @file{runcom} | |
378 | + | |
379 | +A very simple MSDOS emulator to test the Linux vm86() system call | |
380 | +emulation. The excellent 54 byte @file{pi_10.com} PI number calculator | |
381 | +can be launched with it. @file{pi_10.com} was written by Bertram | |
382 | +Felgenhauer (more information at @url{http://www.boo.net/~jasonp/pipage.html}). | ... | ... |