/[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 28 - (hide annotations)
Mon Oct 8 16:20:26 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 6172 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 dpavlin 14 /*
2 dpavlin 24 * Copyright (C) 2005-2006 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 28 * $Id: generate_head.c,v 1.18 2006/07/20 21:53:00 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 dpavlin 18 printf("/* This is for marking a physical page as containing"
135     "\n combined instructions: */\n");
136 dpavlin 14 printf("#define combined (cpu->cd.%s.cur_physpage->flags "
137     "|= COMBINATIONS)\n", a);
138    
139     printf("\n#define X(n) void %s_instr_ ## n(struct cpu *cpu, \\\n"
140     " struct %s_instr_call *ic)\n", a, a);
141    
142     printf("\n/*\n * nothing: Do nothing.\n *\n"
143     " * The difference between this function and a \"nop\" "
144     "instruction is that\n * this function does not increase "
145     "the program counter or the number of\n * translated "
146     "instructions. It is used to \"get out\" of running in "
147     "translated\n * mode.\n *\n"
148     " * IMPORTANT NOTE: Do a cpu->running_translated = 0;\n"
149     " * before setting cpu->cd.%s.next_ic = "
150     "&nothing_call;\n */\n", a);
151     printf("X(nothing)\n{\n");
152     printf("\tcpu->n_translated_instrs --;\n");
153     printf("\tcpu->cd.%s.next_ic --;\n", a);
154     printf("}\n\n");
155    
156 dpavlin 28 /* Ugly special hack for Transputer: */
157     if (strcasecmp(argv[1], "transputer") == 0) {
158     printf("static struct %s_instr_call nothing_call = { "
159     "instr(nothing), {0} };\n", a);
160     } else {
161     printf("static struct %s_instr_call nothing_call = { "
162     "instr(nothing), {0,0,0} };\n", a);
163     }
164 dpavlin 14
165     printf("\n");
166    
167     return 0;
168     }

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