/[gxemul]/trunk/src/cpus/generate_sparc_loadstore.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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Contents of /trunk/src/cpus/generate_sparc_loadstore.c

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Revision 28 - (show annotations)
Mon Oct 8 16:20:26 2007 UTC (13 years, 1 month ago) by dpavlin
File MIME type: text/plain
File size: 4203 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1298 2006/07/22 11:27:46 debug Exp $
20060626	Continuing on SPARC emulation (beginning on the 'save'
		instruction, register windows, etc).
20060629	Planning statistics gathering (new -s command line option),
		and renaming speed_tricks to allow_instruction_combinations.
20060630	Some minor manual page updates.
		Various cleanups.
		Implementing the -s command line option.
20060701	FINALLY found the bug which prevented Linux and Ultrix from
		running without the ugly hack in the R2000/R3000 cache isol
		code; it was the phystranslation hint array which was buggy.
		Removing the phystranslation hint code completely, for now.
20060702	Minor dyntrans cleanups; invalidation of physpages now only
		invalidate those parts of a page that have actually been
		translated. (32 parts per page.)
		Some MIPS non-R3000 speed fixes.
		Experimenting with MIPS instruction combination for some
		addiu+bne+sw loops, and sw+sw+sw.
		Adding support (again) for larger-than-4KB pages in MIPS tlbw*.
		Continuing on SPARC emulation: adding load/store instructions.
20060704	Fixing a virtual vs physical page shift bug in the new tlbw*
		implementation. Problem noticed by Jakub Jermar. (Many thanks.)
		Moving rfe and eret to cpu_mips_instr.c, since that is the
		only place that uses them nowadays.
20060705	Removing the BSD license from the "testmachine" include files,
		placing them in the public domain instead; this enables the
		testmachine stuff to be used from projects which are
		incompatible with the BSD license for some reason.
20060707	Adding instruction combinations for the R2000/R3000 L1
		I-cache invalidation code used by NetBSD/pmax 3.0, lui+addiu,
		various branches followed by addiu or nop, and jr ra followed
		by addiu. The time it takes to perform a full NetBSD/pmax R3000
		install on the laptop has dropped from 573 seconds to 539. :-)
20060708	Adding a framebuffer controller device (dev_fbctrl), which so
		far can be used to change the fb resolution during runtime, but
		in the future will also be useful for accelerated block fill/
		copy, and possibly also simplified character output.
		Adding an instruction combination for NetBSD/pmax' strlen.
20060709	Minor fixes: reading raw files in src/file.c wasn't memblock
		aligned, removing buggy multi_sw MIPS instruction combination,
		etc.
20060711	Adding a machine_qemu.c, which contains a "qemu_mips" machine.
		(It mimics QEMU's MIPS machine mode, so that a test kernel
		made for QEMU_MIPS also can run in GXemul... at least to some
		extent.)  Adding a short section about how to run this mode to
		doc/guestoses.html.
20060714	Misc. minor code cleanups.
20060715	Applying a patch which adds getchar() to promemul/yamon.c
		(from Oleksandr Tymoshenko).
		Adding yamon.h from NetBSD, and rewriting yamon.c to use it
		(instead of ugly hardcoded numbers) + some cleanup.
20060716	Found and fixed the bug which broke single-stepping of 64-bit
		programs between 0.4.0 and 0.4.0.1 (caused by too quick
		refactoring and no testing). Hopefully this fix will not
		break too many other things.
20060718	Continuing on the 8253 PIT; it now works with Linux/QEMU_MIPS.
		Re-adding the sw+sw+sw instr comb (the problem was that I had
		ignored endian issues); however, it doesn't seem to give any
		big performance gain.
20060720	Adding a dummy Transputer mode (T414, T800 etc) skeleton (only
		the 'j' and 'ldc' instructions are implemented so far). :-}
20060721	Adding gtreg.h from NetBSD, updating dev_gt.c to use it, plus
		misc. other updates to get Linux 2.6 for evbmips/malta working
		(thanks to Alec Voropay for the details).
		FINALLY found and fixed the bug which made tlbw* for non-R3000
		buggy; it was a reference count problem in the dyntrans core.
20060722	Testing stuff; things seem stable enough for a new release.

==============  RELEASE 0.4.1  ==============


1 /*
2 * Copyright (C) 2006 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_sparc_loadstore.c,v 1.1 2006/07/02 11:01:20 debug Exp $
29 */
30
31 #include <stdio.h>
32 #include <string.h>
33
34
35 void print_function_name(int use_imm, int store, int size, int signedness)
36 {
37 if (use_imm)
38 printf("i");
39 if (store)
40 printf("s");
41 else {
42 printf("l");
43 if (!signedness)
44 printf("u");
45 }
46 printf("%i", 1 << size);
47 }
48
49
50 void loadstore(int mode32, int use_imm, int store, int size, int signedness)
51 {
52 if (store && signedness)
53 return;
54
55 printf("#if%sdef MODE32\n", mode32? "" : "n");
56
57 if (use_imm)
58 printf("#define LS_USE_IMM\n");
59
60 if (store)
61 printf("#define LS_STORE\n");
62 else
63 printf("#define LS_LOAD\n");
64
65 printf("#define LS_N sparc%s_instr_", mode32? "32" : "");
66 print_function_name(use_imm, store, size, signedness);
67 printf("\n");
68
69 printf("#define LS_GENERIC_N sparc%s_generic_", mode32? "32" : "");
70 print_function_name(use_imm, store, size, signedness);
71 printf("\n");
72
73 printf("#define LS_%i\n", 1 << size);
74 printf("#define LS_SIZE %i\n", 1 << size);
75
76 if (signedness && !store)
77 printf("#define LS_SIGNED\n");
78
79 printf("#include \"cpu_sparc_instr_loadstore.c\"\n");
80
81 if (signedness && !store)
82 printf("#undef LS_SIGNED\n");
83
84 printf("#undef LS_SIZE\n");
85 printf("#undef LS_%i\n", 1 << size);
86
87 printf("#undef LS_GENERIC_N\n");
88 printf("#undef LS_N\n");
89
90 if (store)
91 printf("#undef LS_STORE\n");
92 else
93 printf("#undef LS_LOAD\n");
94
95 if (use_imm)
96 printf("#undef LS_USE_IMM\n");
97
98 printf("#endif\n");
99 }
100
101
102 int main(int argc, char *argv[])
103 {
104 int store, mode32, size, signedness, use_imm;
105
106 printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
107
108 for (mode32=0; mode32<=1; mode32++)
109 for (use_imm=0; use_imm<=1; use_imm++)
110 for (store=0; store<=1; store++)
111 for (size=0; size<=3; size++)
112 for (signedness=0; signedness<=1; signedness++)
113 loadstore(mode32, use_imm, store, size, signedness);
114
115 /* Array of pointers to fast load/store functions: */
116 for (mode32=0; mode32<=1; mode32++) {
117 printf("#if%sdef MODE32\n", mode32? "" : "n");
118 printf("\n\nvoid (*sparc%s_loadstore[32])(struct cpu *, struct "
119 "sparc_instr_call *) = {\n", mode32? "32" : "");
120 for (use_imm=0; use_imm<=1; use_imm++)
121 for (store=0; store<=1; store++)
122 for (size=0; size<=3; size++)
123 for (signedness=0; signedness<=1; signedness++) {
124 if (store || size || signedness || use_imm)
125 printf(",\n");
126
127 if (store && signedness) {
128 printf("\tsparc%s_instr_invalid",
129 mode32? "32" : "");
130 continue;
131 }
132
133 printf("\tsparc%s_instr_", mode32? "32" : "");
134 print_function_name(use_imm, store,
135 size, signedness);
136 }
137 printf(" };\n");
138 printf("#endif\n");
139 }
140
141 return 0;
142 }
143

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