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

Contents of /trunk/src/cpus/generate_arm_dpi.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 18 - (show annotations)
Mon Oct 8 16:19:11 2007 UTC (16 years, 5 months ago) by dpavlin
File MIME type: text/plain
File size: 4210 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1004 2005/10/27 14:01:10 debug Exp $
20051011        Passing -A as the default boot arg for CATS (works fine with
                OpenBSD/cats).
20051012	Fixing the VGA cursor offset bug, and speeding up framebuffer
		redraws if character cells contain the same thing as during
		the last redraw.
20051013	Adding a slow strd ARM instruction hack.
20051017	Minor updates: Adding a dummy i80321 Verde controller (for
		XScale emulation), fixing the disassembly of the ARM "ldrd"
		instruction, adding "support" for less-than-4KB pages for ARM
		(by not adding them to translation tables).
20051020	Continuing on some HPCarm stuff. A NetBSD/hpcarm kernel prints
		some boot messages on an emulated Jornada 720.
		Making dev_ram work better with dyntrans (speeds up some things
		quite a bit).
20051021	Automatically generating some of the most common ARM load/store
		multiple instructions.
20051022	Better statistics gathering for the ARM load/store multiple.
		Various other dyntrans and device updates.
20051023	Various minor updates.
20051024	Continuing; minor device and dyntrans fine-tuning. Adding the
		first "reasonable" instruction combination hacks for ARM (the
		cores of NetBSD/cats' memset and memcpy).
20051025	Fixing a dyntrans-related bug in dev_vga. Also changing the
		dyntrans low/high access notification to only be updated on
		writes, not reads. Hopefully it will be enough. (dev_vga in
		charcell mode now seems to work correctly with both reads and
		writes.)
		Experimenting with gathering dyntrans statistics (which parts
		of emulated RAM that are actually executed), and adding
		instruction combination hacks for cache cleaning and a part of
		NetBSD's scanc() function.
20051026	Adding a bitmap for ARM emulation which indicates if a page is
		(specifically) user accessible; loads and stores with the t-
		flag set can now use the translation arrays, which results in
		a measurable speedup.
20051027	Dyntrans updates; adding an extra bitmap array for 32-bit
		emulation modes, speeding up the check whether a physical page
		has any code translations or not (O(n) -> O(1)). Doing a
		similar reduction of O(n) to O(1) by avoiding the scan through
		the translation entries on a translation update (32-bit mode
		only).
		Various other minor hacks.
20051029	Quick release, without any testing at all.

==============  RELEASE 0.3.6.2  ==============


1 /*
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_arm_dpi.c,v 1.2 2005/10/22 12:22:13 debug Exp $
29 */
30
31 #include <stdio.h>
32
33 char *cond[16] = {
34 "eq", "ne", "cs", "cc", "mi", "pl", "vs", "vc",
35 "hi", "ls", "ge", "lt", "gt", "le", "", "" };
36
37 char *op[16] = {
38 "and", "eor", "sub", "rsb", "add", "adc", "sbc", "rsc",
39 "tst", "teq", "cmp", "cmn", "orr", "mov", "bic", "mvn" };
40
41
42 char *uppercase(char *l)
43 {
44 static char staticbuf[1000];
45 int i = 0;
46
47 while (*l && i < sizeof(staticbuf)) {
48 char u = *l++;
49 if (u >= 'a' && u <= 'z')
50 u -= 32;
51 staticbuf[i++] = u;
52 }
53 if (i == sizeof(staticbuf))
54 i--;
55 staticbuf[i] = 0;
56 return staticbuf;
57 }
58
59
60 int main(int argc, char *argv[])
61 {
62 int n, a, reg, pc, s, c;
63
64 printf("\n/* AUTOMATICALLY GENERATED! Do not edit. */\n\n");
65 printf("#include <stdio.h>\n#include <stdlib.h>\n"
66 "#include \"cpu.h\"\n"
67 "#include \"misc.h\"\n"
68 "#include \"arm_quick_pc_to_pointers.h\"\n"
69 "#define reg(x) (*((uint32_t *)(x)))\n");
70 printf("extern void arm_instr_nop(struct cpu *, "
71 "struct arm_instr_call *);\n");
72 printf("extern void arm_instr_invalid(struct cpu *, "
73 "struct arm_instr_call *);\n");
74
75 for (reg=0; reg<=1; reg++)
76 for (pc=0; pc<=1; pc++)
77 for (s=0; s<=1; s++)
78 for (a=0; a<16; a++) {
79 if (a >= 8 && a <= 11 && s == 0)
80 continue;
81 printf("#define A__NAME arm_instr_%s%s%s%s\n",
82 op[a], s? "s" : "", pc? "_pc" : "", reg? "_reg" : "");
83
84 for (c=0; c<14; c++)
85 printf("#define A__NAME__%s arm_instr_%s%s%s%s__%s\n",
86 cond[c], op[a], s? "s" : "", pc? "_pc" : "",
87 reg? "_reg" : "", cond[c]);
88 if (s) printf("#define A__S\n");
89 if (reg)printf("#define A__REG\n");
90 if (pc) printf("#define A__PC\n");
91 printf("#define A__%s\n", uppercase(op[a]));
92 printf("#include \"cpu_arm_instr_dpi.c\"\n");
93 printf("#undef A__%s\n", uppercase(op[a]));
94 if (s) printf("#undef A__S\n");
95 if (reg)printf("#undef A__REG\n");
96 if (pc) printf("#undef A__PC\n");
97 for (c=0; c<14; c++)
98 printf("#undef A__NAME__%s\n", cond[c]);
99 printf("#undef A__NAME\n");
100 }
101
102 printf("\n\tvoid (*arm_dpi_instr[2 * 2 * 2 * 16 * 16])(struct cpu *,\n"
103 "\t\tstruct arm_instr_call *) = {\n");
104 n = 0;
105 for (reg=0; reg<=1; reg++)
106 for (pc=0; pc<=1; pc++)
107 for (s=0; s<=1; s++)
108 for (a=0; a<16; a++)
109 for (c=0; c<16; c++) {
110 if (c == 15)
111 printf("\tarm_instr_nop");
112 else if (a >= 8 && a <= 11 && s == 0)
113 printf("\tarm_instr_invalid");
114 else
115 printf("\tarm_instr_%s%s%s%s%s%s",
116 op[a], s? "s" : "", pc? "_pc" : "",
117 reg? "_reg" : "",
118 c!=14? "__" : "", cond[c]);
119 n++;
120 if (n != 2 * 2 * 2 * 16 * 16)
121 printf(",");
122 printf("\n");
123 }
124
125 printf("};\n\n");
126
127 return 0;
128 }
129

  ViewVC Help
Powered by ViewVC 1.1.26