/[gxemul]/trunk/src/cpus/generate_alpha_misc.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /trunk/src/cpus/generate_alpha_misc.c

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Revision 14 - (hide annotations)
Mon Oct 8 16:18:51 2007 UTC (11 years, 11 months ago) by dpavlin
File MIME type: text/plain
File size: 11404 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.982 2005/10/07 22:45:32 debug Exp $
20050816	Some success in decoding the way the SGI O2 PROM draws graphics
		during bootup; lines/rectangles and bitmaps work, enough to
		show the bootlogo etc. :-)
		Adding more PPC instructions, and (dummy) BAT registers.
20050817	Updating the pckbc to support scancode type 3 keyboards
		(required in order to interact with the SGI O2 PROM).
		Adding more PPC instructions.
20050818	Adding more ARM instructions; general register forms.
		Importing armreg.h from NetBSD (ARM cpu ids). Adding a (dummy)
		CATS machine mode (using SA110 as the default CPU).
		Continuing on general dyntrans related stuff.
20050819	Register forms for ARM load/stores. Gaah! The Compaq C Compiler
		bug is triggered for ARM loads as well, not just PPC :-(
		Adding full support for ARM PC-relative load/stores, and load/
		stores where the PC register is the destination register.
		Adding support for ARM a.out binaries.
20050820	Continuing to add more ARM instructions, and correcting some
		bugs. Continuing on CATS emulation.
		More work on the PPC stuff.
20050821	Minor PPC and ARM updates. Adding more machine types.
20050822	All ARM "data processing instructions" are now generated
		automatically.
20050824	Beginning the work on the ARM system control coprocessor.
		Adding support for ARM halfword load/stores, and signed loads.
20050825	Fixing an important bug related to the ARM condition codes.
		OpenBSD/zaurus and NetBSD/netwinder now print some boot
		messages. :)
		Adding a dummy SH (Hitachi SuperH) cpu family.
		Beginning to add some ARM virtual address translation.
		MIPS bugfixes: unaligned PC now cause an ADEL exception (at
		least for non-bintrans execution), and ADEL/ADES (not
		TLBL/TLBS) are used if userland tries to access kernel space.
		(Thanks to Joshua Wise for making me aware of these bugs.)
20050827	More work on the ARM emulation, and various other updates.
20050828	More ARM updates.
		Finally taking the time to work on translation invalidation
		(i.e. invalidating translated code mappings when memory is
		written to). Hopefully this doesn't break anything.
20050829	Moving CPU related files from src/ to a new subdir, src/cpus/.
		Moving PROM emulation stuff from src/ to src/promemul/.
		Better debug instruction trace for ARM loads and stores.
20050830	Various ARM updates (correcting CMP flag calculation, etc).
20050831	PPC instruction updates. (Flag fixes, etc.)
20050901	Various minor PPC and ARM instruction emulation updates.
		Minor OpenFirmware emulation updates.
20050903	Adding support for adding arbitrary ARM coprocessors (with
		the i80321 I/O coprocessor as a first test).
		Various other ARM and PPC updates.
20050904	Adding some SHcompact disassembly routines.
20050907	(Re)adding a dummy HPPA CPU module, and a dummy i960 module.
20050908	Began hacking on some Apple Partition Table support.
20050909	Adding support for loading Mach-O (Darwin PPC) binaries.
20050910	Fixing an ARM bug (Carry flag was incorrectly updated for some
		data processing instructions); OpenBSD/cats and NetBSD/
		netwinder get quite a bit further now.
		Applying a patch to dev_wdc, and a one-liner to dev_pcic, to
		make them work better when emulating new versions of OpenBSD.
		(Thanks to Alexander Yurchenko for the patches.)
		Also doing some other minor updates to dev_wdc. (Some cleanup,
		and finally converting to devinit, etc.)
20050912	IRIX doesn't have u_int64_t by default (noticed by Andreas
		<avr@gnulinux.nl>); configure updated to reflect this.
		Working on ARM register bank switching, CPSR vs SPSR issues,
		and beginning the work on interrupt/exception support.
20050913	Various minor ARM updates (speeding up load/store multiple,
		and fixing a ROR bug in R(); NetBSD/cats now boots as far as
		OpenBSD/cats).
20050917	Adding a dummy Atmel AVR (8-bit) cpu family skeleton.
20050918	Various minor updates.
20050919	Symbols are now loaded from Mach-O executables.
		Continuing the work on adding ARM exception support.
20050920	More work on ARM stuff: OpenBSD/cats and NetBSD/cats reach
		userland! :-)
20050921	Some more progress on ARM interrupt specifics.
20050923	Fixing linesize for VR4121 (patch by Yurchenko). Also fixing
		linesizes/cachesizes for some other VR4xxx.
		Adding a dummy Acer Labs M1543 PCI-ISA bridge (for CATS) and a
		dummy Symphony Labs 83C553 bridge (for Netwinder), usable by 
		dev_footbridge.
20050924	Some PPC progress.
20050925	More PPC progress.
20050926	PPC progress (fixing some bugs etc); Darwin's kernel gets
		slightly further than before.
20050928	Various updates: footbridge/ISA/pciide stuff, and finally
		fixing the VGA text scroll-by-changing-the-base-offset bug.
20050930	Adding a dummy S3 ViRGE pci card for CATS emulation, which
		both NetBSD and OpenBSD detects as VGA.
		Continuing on Footbridge (timers, ISA interrupt stuff).
20051001	Continuing... there are still bugs, probably interrupt-
		related.
20051002	More work on the Footbridge (interrupt stuff).
20051003	Various minor updates. (Trying to find the bug(s).)
20051004	Continuing on the ARM stuff.
20051005	More ARM-related fixes.
20051007	FINALLY! Found and fixed 2 ARM bugs: 1 memory related, and the
		other was because of an error in the ARM manual (load multiple
		with the S-bit set should _NOT_ load usermode registers, as the
		manual says, but it should load saved registers, which may or
		may not happen to be usermode registers).
		NetBSD/cats and OpenBSD/cats seem to install fine now :-)
		except for a minor bug at the end of the OpenBSD/cats install.
		Updating the documentation, preparing for the next release.
20051008	Continuing with release testing and cleanup.

1 dpavlin 14 /*
2     * Copyright (C) 2005 Anders Gavare. All rights reserved.
3     *
4     * Redistribution and use in source and binary forms, with or without
5     * modification, are permitted provided that the following conditions are met:
6     *
7     * 1. Redistributions of source code must retain the above copyright
8     * notice, this list of conditions and the following disclaimer.
9     * 2. Redistributions in binary form must reproduce the above copyright
10     * notice, this list of conditions and the following disclaimer in the
11     * documentation and/or other materials provided with the distribution.
12     * 3. The name of the author may not be used to endorse or promote products
13     * derived from this software without specific prior written permission.
14     *
15     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25     * SUCH DAMAGE.
26     *
27     *
28     * $Id: generate_alpha_misc.c,v 1.1 2005/08/29 14:36:41 debug Exp $
29     */
30    
31     #include <stdio.h>
32     #include <string.h>
33    
34    
35     char *sizechar[4] = { "b", "w", "l", "q" };
36    
37     #define N_CMPS 5
38     char *cmps[N_CMPS] = { "ult", "eq", "ule", "lt", "le" /*bge*/ };
39     #define N_CMOV 8
40     char *cmov[N_CMOV] = { "lbs", "lbc", "eq", "ne", "lt", "ge", "le", "gt" };
41    
42    
43     int main(int argc, char *argv[])
44     {
45     int load, size, zero, aligncheck, n, msk, llsc;
46     int ra, rc, lo, scale, imm, not, op, quad;
47    
48     printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
49    
50     n = 0;
51     /* add and sub: */
52     for (imm = 0; imm <= 1; imm ++)
53     for (quad = 0; quad <= 1; quad ++)
54     for (scale = 0; scale <= 8; scale += 4)
55     for (op = 0; op <= 1; op ++) {
56     printf("#define ALU_N alpha_instr_");
57     if (scale)
58     printf("s%i", scale);
59     printf("%s%s", op? "sub" : "add", quad? "q" : "l");
60     if (imm)
61     printf("_imm");
62     printf("\n");
63    
64     if (imm)
65     printf("#define ALU_IMM\n");
66     if (!quad)
67     printf("#define ALU_LONG\n");
68     if (op)
69     printf("#define ALU_SUB\n");
70     else
71     printf("#define ALU_ADD\n");
72     if (scale)
73     printf("#define ALU_S%i\n", scale);
74    
75     printf("#include \"cpu_alpha_instr_alu.c\"\n");
76    
77     if (imm)
78     printf("#undef ALU_IMM\n");
79     if (!quad)
80     printf("#undef ALU_LONG\n");
81     if (op)
82     printf("#undef ALU_SUB\n");
83     else
84     printf("#undef ALU_ADD\n");
85     if (scale)
86     printf("#undef ALU_S%i\n", scale);
87    
88     printf("#undef ALU_N\n");
89     }
90    
91     /* and, or, xor, zap, sll, srl, sra: */
92     for (imm = 0; imm <= 1; imm ++)
93     for (not = 0; not <= 1; not ++)
94     for (op = 0; op < 7; op ++) {
95     if (op >= 4 && not)
96     continue;
97     printf("#define ALU_N alpha_instr_");
98     switch (op) {
99     case 0: printf("and"); break;
100     case 1: printf("or"); break;
101     case 2: printf("xor"); break;
102     case 3: printf("zap"); break;
103     case 4: printf("sll"); break;
104     case 5: printf("srl"); break;
105     case 6: printf("sra"); break;
106     }
107     if (not)
108     printf("not");
109     if (imm)
110     printf("_imm");
111     printf("\n");
112     if (imm)
113     printf("#define ALU_IMM\n");
114     switch (op) {
115     case 0: printf("#define ALU_AND\n"); break;
116     case 1: printf("#define ALU_OR\n"); break;
117     case 2: printf("#define ALU_XOR\n"); break;
118     case 3: printf("#define ALU_ZAP\n"); break;
119     case 4: printf("#define ALU_SLL\n"); break;
120     case 5: printf("#define ALU_SRL\n"); break;
121     case 6: printf("#define ALU_SRA\n"); break;
122     }
123     if (not)
124     printf("#define ALU_NOT\n");
125     printf("#include \"cpu_alpha_instr_alu.c\"\n");
126    
127     if (imm)
128     printf("#undef ALU_IMM\n");
129     if (not)
130     printf("#undef ALU_NOT\n");
131     switch (op) {
132     case 0: printf("#undef ALU_AND\n"); break;
133     case 1: printf("#undef ALU_OR\n"); break;
134     case 2: printf("#undef ALU_XOR\n"); break;
135     case 3: printf("#undef ALU_ZAP\n"); break;
136     case 4: printf("#undef ALU_SLL\n"); break;
137     case 5: printf("#undef ALU_SRL\n"); break;
138     case 6: printf("#undef ALU_SRA\n"); break;
139     }
140    
141     printf("#undef ALU_N\n");
142     }
143    
144     printf("#define ALU_CMP\n");
145     for (imm = 0; imm <= 1; imm ++)
146     for (op = 0; op < N_CMPS; op ++) {
147     printf("#define ALU_N alpha_instr_cmp%s", cmps[op]);
148     if (imm)
149     printf("_imm");
150     printf("\n");
151    
152     if (imm)
153     printf("#define ALU_IMM\n");
154    
155     if (cmps[op][0] == 'u')
156     printf("#define ALU_UNSIGNED\n");
157     if (strcmp(cmps[op]+strlen(cmps[op])-2,"lt") == 0)
158     printf("#define ALU_CMP_LT\n");
159     if (strcmp(cmps[op]+strlen(cmps[op])-2,"le") == 0)
160     printf("#define ALU_CMP_LE\n");
161     if (strcmp(cmps[op]+strlen(cmps[op])-2,"eq") == 0)
162     printf("#define ALU_CMP_EQ\n");
163    
164     printf("#include \"cpu_alpha_instr_alu.c\"\n");
165    
166     if (cmps[op][0] == 'u')
167     printf("#undef ALU_UNSIGNED\n");
168     if (strcmp(cmps[op]+strlen(cmps[op])-2,"lt") == 0)
169     printf("#undef ALU_CMP_LT\n");
170     if (strcmp(cmps[op]+strlen(cmps[op])-2,"le") == 0)
171     printf("#undef ALU_CMP_LE\n");
172     if (strcmp(cmps[op]+strlen(cmps[op])-2,"eq") == 0)
173     printf("#undef ALU_CMP_EQ\n");
174     if (imm)
175     printf("#undef ALU_IMM\n");
176     printf("#undef ALU_N\n");
177     }
178     printf("#undef ALU_CMP\n");
179    
180     printf("#define ALU_CMOV\n");
181     for (imm = 0; imm <= 1; imm ++)
182     for (op = 0; op < N_CMOV; op ++) {
183     printf("#define ALU_N alpha_instr_cmov%s", cmov[op]);
184     if (imm)
185     printf("_imm");
186     printf("\n");
187     if (imm)
188     printf("#define ALU_IMM\n");
189     printf("#define ALU_CMOV_%s\n", cmov[op]);
190     printf("#include \"cpu_alpha_instr_alu.c\"\n");
191     printf("#undef ALU_CMOV_%s\n", cmov[op]);
192     if (imm)
193     printf("#undef ALU_IMM\n");
194     printf("#undef ALU_N\n");
195     }
196     printf("#undef ALU_CMOV\n");
197    
198     for (imm = 0; imm <= 1; imm ++)
199     for (lo = 0; lo <= 1; lo ++)
200     for (msk = 0; msk <= 2; msk ++)
201     for (size=0; size<4; size++) {
202     if (size==0 && lo==0)
203     continue;
204     switch (msk) {
205     case 0: printf("#define ALU_MSK\n"); break;
206     case 1: printf("#define ALU_EXT\n"); break;
207     case 2: printf("#define ALU_INS\n"); break;
208     }
209     switch (msk) {
210     case 0: printf("#define ALU_N alpha_instr_msk"); break;
211     case 1: printf("#define ALU_N alpha_instr_ext"); break;
212     case 2: printf("#define ALU_N alpha_instr_ins"); break;
213     }
214     printf("%s", sizechar[size]);
215     if (lo)
216     printf("l");
217     else
218     printf("h");
219     if (imm)
220     printf("_imm");
221     printf("\n");
222     if (imm)
223     printf("#define ALU_IMM\n");
224     switch (size) {
225     case 0: printf("#define ALU_B\n"); break;
226     case 1: printf("#define ALU_W\n"); break;
227     case 2: printf("#define ALU_L\n"); break;
228     case 3: printf("#define ALU_Q\n"); break;
229     }
230     if (lo)
231     printf("#define ALU_LO\n");
232     printf("#include \"cpu_alpha_instr_alu.c\"\n");
233     switch (size) {
234     case 0: printf("#undef ALU_B\n"); break;
235     case 1: printf("#undef ALU_W\n"); break;
236     case 2: printf("#undef ALU_L\n"); break;
237     case 3: printf("#undef ALU_Q\n"); break;
238     }
239     switch (msk) {
240     case 0: printf("#undef ALU_MSK\n"); break;
241     case 1: printf("#undef ALU_EXT\n"); break;
242     case 2: printf("#undef ALU_INS\n"); break;
243     }
244     if (lo)
245     printf("#undef ALU_LO\n");
246     if (imm)
247     printf("#undef ALU_IMM\n");
248     printf("#undef ALU_N\n");
249     }
250    
251     /*
252     * Normal load/store:
253     */
254     for (llsc=0; llsc<=1; llsc++)
255     for (aligncheck=0; aligncheck<=1; aligncheck++)
256     for (load=0; load<=1; load++)
257     for (zero=0; zero<=1; zero++)
258     for (size=0; size<4; size++) {
259     if (llsc && size < 2)
260     continue;
261     if (aligncheck)
262     printf("#define LS_ALIGN_CHECK\n");
263     if (zero)
264     printf("#define LS_IGNORE_OFFSET\n");
265     if (load)
266     printf("#define LS_LOAD\n");
267     if (llsc)
268     printf("#define LS_LLSC\n");
269     switch (size) {
270     case 0: printf("#define LS_B\n"); break;
271     case 1: printf("#define LS_W\n"); break;
272     case 2: printf("#define LS_L\n"); break;
273     case 3: printf("#define LS_Q\n"); break;
274     }
275     printf("#define LS_GENERIC_N alpha_generic_");
276     if (load)
277     printf("ld");
278     else
279     printf("st");
280     printf("%s", sizechar[size]);
281     if (llsc)
282     printf("_llsc");
283     printf("\n");
284     printf("#define LS_N alpha_instr_");
285     if (load)
286     printf("ld");
287     else
288     printf("st");
289     printf("%s", sizechar[size]);
290     if (zero)
291     printf("_0");
292     if (aligncheck)
293     printf("_aligncheck");
294     if (llsc)
295     printf("_llsc");
296     printf("\n");
297     printf("#include \"cpu_alpha_instr_loadstore.c\"\n");
298     printf("#undef LS_N\n");
299     printf("#undef LS_GENERIC_N\n");
300     switch (size) {
301     case 0: printf("#undef LS_B\n"); break;
302     case 1: printf("#undef LS_W\n"); break;
303     case 2: printf("#undef LS_L\n"); break;
304     case 3: printf("#undef LS_Q\n"); break;
305     }
306     if (load)
307     printf("#undef LS_LOAD\n");
308     if (llsc)
309     printf("#undef LS_LLSC\n");
310     if (zero)
311     printf("#undef LS_IGNORE_OFFSET\n");
312     if (aligncheck)
313     printf("#undef LS_ALIGN_CHECK\n");
314     }
315    
316     /*
317     * Unaligned load/store:
318     */
319     printf("#define LS_UNALIGNED\n");
320     for (load=0; load<=1; load++) {
321     size = 3;
322     if (load)
323     printf("#define LS_LOAD\n");
324     printf("#define LS_Q\n");
325     printf("#define LS_GENERIC_N alpha_generic_");
326     if (load)
327     printf("ld");
328     else
329     printf("st");
330     printf("%s", sizechar[size]);
331     printf("_u"); /* NOTE: unaligned */
332     printf("\n");
333     printf("#define LS_N alpha_instr_");
334     if (load)
335     printf("ld");
336     else
337     printf("st");
338     printf("%s", sizechar[size]);
339     printf("_u"); /* NOTE: unaligned */
340     printf("\n");
341     printf("#include \"cpu_alpha_instr_loadstore.c\"\n");
342     printf("#undef LS_N\n");
343     printf("#undef LS_GENERIC_N\n");
344     printf("#undef LS_Q\n");
345     if (load)
346     printf("#undef LS_LOAD\n");
347     }
348     printf("#undef LS_UNALIGNED\n");
349    
350     /* Lookup table for most normal loads/stores: */
351     printf("\n\nvoid (*alpha_loadstore[64])(struct cpu *, struct "
352     "alpha_instr_call *) = {\n");
353    
354     for (llsc = 0; llsc <= 1; llsc ++)
355     for (aligncheck=0; aligncheck<=1; aligncheck++)
356     for (load=0; load<=1; load++)
357     for (zero=0; zero<=1; zero++)
358     for (size=0; size<4; size++) {
359     printf("\talpha_instr_");
360     if (llsc && (size != 2 && size != 3)) {
361     printf("nop");
362     } else {
363     if (load)
364     printf("ld");
365     else
366     printf("st");
367     printf("%s", sizechar[size]);
368     if (zero)
369     printf("_0");
370     if (aligncheck)
371     printf("_aligncheck");
372     if (llsc)
373     printf("_llsc");
374     }
375     if (++n < 64)
376     printf(",");
377     printf("\n");
378     }
379    
380     printf("};\n\n");
381    
382     for (ra = 0; ra < 32; ra ++)
383     for (rc = 0; rc < 31; rc ++)
384     if (ra != rc) {
385     printf("static void alpha_instr_mov_%i_%i(struct cpu"
386     " *cpu, struct alpha_instr_call *ic)\n", ra, rc);
387     printf("{ cpu->cd.alpha.r[%i] = ", rc);
388     if (ra == 31)
389     printf("0");
390     else
391     printf("cpu->cd.alpha.r[%i]", ra);
392     printf("; }\n");
393     }
394    
395     printf("\n\nvoid (*alpha_mov_r_r[32*31])(struct cpu *, struct "
396     "alpha_instr_call *) = {\n");
397     n = 0;
398     for (rc = 0; rc < 31; rc ++)
399     for (ra = 0; ra < 32; ra ++) {
400     if (ra == rc)
401     printf("\talpha_instr_nop");
402     else
403     printf("\talpha_instr_mov_%i_%i", ra, rc);
404     if (++n < 31*32)
405     printf(",");
406     printf("\n");
407     }
408    
409     printf("};\n\n");
410    
411     return 0;
412     }
413    

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