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

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Revision 38 - (show annotations)
Mon Oct 8 16:21:53 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 5704 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1515 2007/04/14 05:39:46 debug Exp $
20070324	Adding a "--debug" option to the configure script, to disable
		optimizations in unstable development builds.
		Moving out SCSI-specific stuff from diskimage.c into a new
		diskimage_scsicmd.c.
		Applying Hĺvard Eidnes' patch for SCSICDROM_READ_DISKINFO and
		SCSICDROM_READ_TRACKINFO. (Not really tested yet.)
		Implementing disk image "overlays" (to allow simple roll-back
		to previous disk state). Adding a 'V' disk flag for this, and
		updating the man page and misc.html.
20070325	Stability fix to cpu_dyntrans.c, when multiple physical pages
		share the same initial table entry. (The ppp == NULL check
		should be physpage_ofs == 0.) Bug found by analysing GXemul
		against a version patched for Godson.
		Fixing a second occurance of the same problem (also in
		cpu_dyntrans.c).
		Fixing a MAJOR physical page leak in cpu_dyntrans.c; pages
		weren't _added_ to the set of translated pages, they _replaced_
		all previous pages. It's amazing that this bug has been able
		to live for this long. (Triggered when emulating >128MB RAM.)
20070326	Removing the GDB debugging stub support; it was too hackish
		and ugly.
20070328	Moving around some native code generation skeleton code.
20070329	The -lm check in the configure script now also checks for sin()
		in addition to sqrt(). (Thanks to Nigel Horne for noticing that
		sqrt was not enough on Fedora Core 6.) (Not verified yet.)
20070330	Fixing an indexing bug in dev_sh4.c, found by using gcc version
		4.3.0 20070323.
20070331	Some more experimentation with native code generation.
20070404	Attempting to fix some more SH4 SCIF interrupt bugs; rewriting
		the SH interrupt assertion/deassertion code somewhat.
20070410	Splitting src/file.c into separate files in src/file/.
		Cleanup: Removing the dummy TS7200, Walnut, PB1000, and
		Meshcube emulation modes, and dev_epcom and dev_au1x00.
		Removing the experimental CHIP8/RCA180x code; it wasn't really
		working much lately, anyway. It was fun while it lasted.
		Also removing the experimental Transputer CPU support.
20070412	Moving the section about how the dynamic translation system
		works from intro.html to a separate translation.html file.
		Minor SH fixes; attempting to get OpenBSD/landisk to run
		without randomly bugging out, but no success yet.
20070413	SH SCI (serial bit interface) should now work together with a
		(new) RS5C313 clock device (for Landisk emulation).
20070414	Moving Redhat/MIPS down from supported to experimental, in
		guestoses.html.
		Preparing for a new release; doing some regression testing etc.

==============  RELEASE 0.4.5  ==============


1 /*
2 * Copyright (C) 2005-2007 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_head.c,v 1.26 2007/04/10 17:26:20 debug Exp $
29 */
30
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34
35
36 /* NOTE: Static return buffer, so calling it multiple times in the
37 same printf statement with the same argument works :-) but not
38 with different args. Hahaha. Really ugly. */
39 char *uppercase(char *l)
40 {
41 static char staticbuf[1000];
42 size_t i = 0;
43
44 while (*l && i < sizeof(staticbuf)) {
45 char u = *l++;
46 if (u >= 'a' && u <= 'z')
47 u -= 32;
48 staticbuf[i++] = u;
49 }
50 if (i == sizeof(staticbuf))
51 i--;
52 staticbuf[i] = 0;
53 return staticbuf;
54 }
55
56
57 int main(int argc, char *argv[])
58 {
59 char *a, *b;
60
61 if (argc != 3) {
62 fprintf(stderr, "usage: %s arch Arch\n", argv[0]);
63 fprintf(stderr, "Example: %s alpha Alpha\n", argv[0]);
64 fprintf(stderr, " or: %s arm ARM\n", argv[0]);
65 exit(1);
66 }
67
68 a = argv[1];
69 b = argv[2];
70
71
72 printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
73
74 printf("#include <assert.h>\n");
75 printf("#include \"debugger.h\"\n");
76
77 printf("#define DYNTRANS_MAX_VPH_TLB_ENTRIES "
78 "%s_MAX_VPH_TLB_ENTRIES\n", uppercase(a));
79 printf("#define DYNTRANS_ARCH %s\n", a);
80 printf("#define DYNTRANS_%s\n", uppercase(a));
81
82 /* For 64-bit platforms, arch_L2N, and arch_L3N must be defined. */
83 printf("#ifndef DYNTRANS_32\n");
84 printf("#define DYNTRANS_L2N %s_L2N\n"
85 "#define DYNTRANS_L3N %s_L3N\n"
86 "#if !defined(%s_L2N) || !defined(%s_L3N)\n"
87 "#error arch_L2N, and arch_L3N must be defined for this arch!\n"
88 "#endif\n",
89 uppercase(a), uppercase(a), uppercase(a), uppercase(a));
90 printf("#define DYNTRANS_L2_64_TABLE %s_l2_64_table\n"
91 "#define DYNTRANS_L3_64_TABLE %s_l3_64_table\n", a, a);
92 printf("#endif\n");
93
94 /* Default pagesize is 4KB. */
95 printf("#ifndef DYNTRANS_PAGESIZE\n"
96 "#define DYNTRANS_PAGESIZE 4096\n"
97 "#endif\n");
98
99 printf("#define DYNTRANS_IC %s_instr_call\n", a);
100 printf("#define DYNTRANS_IC_ENTRIES_PER_PAGE "
101 "%s_IC_ENTRIES_PER_PAGE\n", uppercase(a));
102 printf("#define DYNTRANS_INSTR_ALIGNMENT_SHIFT "
103 "%s_INSTR_ALIGNMENT_SHIFT\n", uppercase(a));
104 printf("#define DYNTRANS_TC_PHYSPAGE %s_tc_physpage\n", a);
105 printf("#define DYNTRANS_INVALIDATE_TLB_ENTRY "
106 "%s_invalidate_tlb_entry\n", a);
107 printf("#define DYNTRANS_ADDR_TO_PAGENR %s_ADDR_TO_PAGENR\n",
108 uppercase(a));
109 printf("#define DYNTRANS_PC_TO_IC_ENTRY %s_PC_TO_IC_ENTRY\n",
110 uppercase(a));
111 printf("#define DYNTRANS_TC_ALLOCATE "
112 "%s_tc_allocate_default_page\n", a);
113 printf("#define DYNTRANS_TC_PHYSPAGE %s_tc_physpage\n", a);
114 printf("#define DYNTRANS_PC_TO_POINTERS %s_pc_to_pointers\n", a);
115 printf("#define DYNTRANS_PC_TO_POINTERS_GENERIC "
116 "%s_pc_to_pointers_generic\n", a);
117 printf("#define COMBINE_INSTRUCTIONS %s_combine_instructions\n", a);
118 printf("#define DISASSEMBLE %s_cpu_disassemble_instr\n", a);
119
120 printf("\nextern volatile int single_step, single_step_breakpoint;"
121 "\nextern int debugger_n_steps_left_before_interaction;\n"
122 "extern int old_show_trace_tree;\n"
123 "extern int old_instruction_trace;\n"
124 "extern int old_quiet_mode;\n"
125 "extern int quiet_mode;\n");
126
127 printf("\n/* instr uses the same names as in "
128 "cpu_%s_instr.c */\n#define instr(n) %s_instr_ ## n\n\n", a, a);
129
130 printf("#ifdef DYNTRANS_DUALMODE_32\n"
131 "#define instr32(n) %s32_instr_ ## n\n\n", a);
132 printf("#endif\n\n");
133
134 printf("\n#define X(n) void %s_instr_ ## n(struct cpu *cpu, \\\n"
135 " struct %s_instr_call *ic)\n", a, a);
136
137 printf("\n/*\n * nothing: Do nothing.\n *\n"
138 " * The difference between this function and a \"nop\" "
139 "instruction is that\n * this function does not increase "
140 "the program counter. It is used to \"get out\" of running in "
141 "translated\n * mode.\n */\n");
142 printf("X(nothing)\n{\n");
143 printf("\tcpu->cd.%s.next_ic --;\n", a);
144 printf("}\n\n");
145
146 /* Ugly special hacks for SH[34]: */
147 if (strcasecmp(argv[1], "sh") == 0) {
148 printf("static struct %s_instr_call nothing_call = { "
149 "instr(nothing), {0,0} };\n", a);
150 } else {
151 printf("static struct %s_instr_call nothing_call = { "
152 "instr(nothing), {0,0,0} };\n", a);
153 }
154
155 printf("\n");
156
157 return 0;
158 }

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