/[gxemul]/trunk/src/cpus/generate_head.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_head.c

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Revision 38 - (hide 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 dpavlin 14 /*
2 dpavlin 34 * Copyright (C) 2005-2007 Anders Gavare. All rights reserved.
3 dpavlin 14 *
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 dpavlin 38 * $Id: generate_head.c,v 1.26 2007/04/10 17:26:20 debug Exp $
29 dpavlin 14 */
30    
31     #include <stdio.h>
32     #include <stdlib.h>
33     #include <string.h>
34    
35    
36 dpavlin 24 /* 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 dpavlin 14 char *uppercase(char *l)
40     {
41     static char staticbuf[1000];
42 dpavlin 22 size_t i = 0;
43 dpavlin 14
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 dpavlin 24
72 dpavlin 14 printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
73    
74 dpavlin 26 printf("#include <assert.h>\n");
75     printf("#include \"debugger.h\"\n");
76    
77 dpavlin 14 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 dpavlin 24
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 dpavlin 14 printf("#ifndef DYNTRANS_PAGESIZE\n"
96     "#define DYNTRANS_PAGESIZE 4096\n"
97     "#endif\n");
98 dpavlin 24
99 dpavlin 14 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 dpavlin 30 "the program counter. It is used to \"get out\" of running in "
141     "translated\n * mode.\n */\n");
142 dpavlin 14 printf("X(nothing)\n{\n");
143     printf("\tcpu->cd.%s.next_ic --;\n", a);
144     printf("}\n\n");
145    
146 dpavlin 38 /* Ugly special hacks for SH[34]: */
147     if (strcasecmp(argv[1], "sh") == 0) {
148 dpavlin 28 printf("static struct %s_instr_call nothing_call = { "
149 dpavlin 30 "instr(nothing), {0,0} };\n", a);
150 dpavlin 28 } else {
151     printf("static struct %s_instr_call nothing_call = { "
152     "instr(nothing), {0,0,0} };\n", a);
153     }
154 dpavlin 14
155     printf("\n");
156    
157     return 0;
158     }

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