/[gxemul]/trunk/src/include/cpu.h
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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Revision 6 - (hide annotations)
Mon Oct 8 16:18:11 2007 UTC (16 years, 6 months ago) by dpavlin
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File size: 5037 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.772 2005/06/04 12:02:16 debug Exp $
20050428	Disabling the "-fmove-all-movables" option in the configure
		script, because it causes the compile to fail on OpenBSD/sgi.
20050502	Minor updates.
20050503	Removing the WRT54G mode (it was bogus anyway), and adding a
		comment about Windows NT for MIPS in doc/experiments.html.
		Minor updates to the x86 instruction decoding.
20050504	Adding some more x86 instructions.
		Adding support for reading files from ISO9660 CDROMs (including
		gzipped files). It's an ugly hack, but it seems to work.
		Various other minor updates (dev_vga.c, pc_bios.c etc).
20050505	Some more x86-related updates.
		Beginning (what I hope will be) a major code cleanup phase.
		"bootris" (an x86 bootsector) runs :-)
20050506	Adding some more x86 instructions.
20050507	tmpnam => mkstemp.
		Working on a hack to allow VGA charcells to be shown even when
		not running with X11.
		Adding more x86 instructions.
20050508	x86 32-bit SIB addressing fix, and more instructions.
20050509	Adding more x86 instructions.
20050510	Minor documentation updates, and other updates (x86 stuff etc.)
20050511	More x86-related updates.
20050513	Various updates, mostly x86-related. (Trying to fix flag 
		calculation, factoring out the ugly shift/rotate code, and
		some other things.)
20050514	Adding support for loading some old i386 a.out executables.
		Finally beginning the cleanup of machine/PROM/bios dependant
		info.
		Some minor documentation updates.
		Trying to clean up ARCBIOS stuff a little.
20050515	Trying to make it possible to actually use more than one disk
		type per machine (floppy, ide, scsi).
		Trying to clean up the kbd vs PROM console stuff. (For PC and
		ARC emulation modes, mostly.)
		Beginning to add an 8259 interrupt controller, and connecting
		it to the x86 emulation.
20050516	The first x86 interrupts seem to work (keyboard stuff).
		Adding a 8253/8254 programmable interval timer skeleton.
		FreeDOS now reaches a command prompt and can be interacted
		with.
20050517	After some bugfixes, MS-DOS also (sometimes) reaches a
		command prompt now.
		Trying to fix the pckbc to work with MS-DOS' keyb.com, but no
		success yet.
20050518	Adding a simple 32-bit x86 MMU skeleton.
20050519	Some more work on the x86 stuff. (Beginning the work on paging,
		and various other fixes).
20050520	More updates. Working on dev_vga (4-bit graphics modes), adding
		40 columns support to the PC bios emulation.
		Trying to add support for resizing windows when switching
		between graphics modes.
20050521	Many more x86-related updates.
20050522	Correcting the initial stack pointer's sign-extension for
		ARCBIOS emulation (thanks to Alec Voropay for noticing the
		error).
		Continuing on the cleanup (ARCBIOS etc).
		dev_vga updates.
20050523	More x86 updates: trying to add some support for protected mode
		interrupts (via gate descriptors) and many other fixes.
		More ARCBIOS cleanup.
		Adding a device flag which indicates that reads cause no
		side-effects. (Useful for the "dump" command in the debugger,
		and other things.)
		Adding support for directly starting up x86 ELFs, skipping the
		bootloader stage. (Most ELFs, however, are not suitable for
		this.)
20050524	Adding simple 32-bit x86 TSS task switching, but no privilege
		level support yet.
		More work on dev_vga. A small "Copper bars" demo works. :-)
		Adding support for Trap Flag (single-step exceptions), at least
		in real mode, and various other x86-related fixes.
20050525	Adding a new disk image prefix (gH;S;) which can be used to
		override the default nr of heads and sectors per track.
20050527	Various bug fixes, more work on the x86 mode (stack change on
		interrupts between different priv.levels), and some minor
		documentation updates.
20050528	Various fixes (x86 stuff).
20050529	More x86 fixes. An OpenBSD/i386 bootfloppy reaches userland
		and can be interacted with (although there are problems with
		key repetition). NetBSD/i386 triggers a serious CISC-related
		problem: instruction fetches across page boundaries, where
		the later part isn't actually part of the instruction.
20050530	Various minor updates. (Documentation updates, etc.)
20050531	Adding some experimental code (experiments/new_test_*) which
		could be useful for dynamic (but not binary) translation in
		the future.
20050602	Adding a dummy ARM skeleton.
		Fixing the pckbc key repetition problem (by adding release
		scancodes for all keypresses).
20050603	Minor updates for the next release.
20050604	Release testing. Minor updates.

==============  RELEASE 0.3.3  ==============

20050604	There'll probably be a 0.3.3.1 release soon, with some very
		very tiny updates.
1 dpavlin 4 #ifndef CPU_H
2     #define CPU_H
3    
4     /*
5     * Copyright (C) 2005 Anders Gavare. All rights reserved.
6     *
7     * Redistribution and use in source and binary forms, with or without
8     * modification, are permitted provided that the following conditions are met:
9     *
10     * 1. Redistributions of source code must retain the above copyright
11     * notice, this list of conditions and the following disclaimer.
12     * 2. Redistributions in binary form must reproduce the above copyright
13     * notice, this list of conditions and the following disclaimer in the
14     * documentation and/or other materials provided with the distribution.
15     * 3. The name of the author may not be used to endorse or promote products
16     * derived from this software without specific prior written permission.
17     *
18     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28     * SUCH DAMAGE.
29     *
30     *
31 dpavlin 6 * $Id: cpu.h,v 1.23 2005/06/02 00:08:43 debug Exp $
32 dpavlin 4 *
33     * See cpu.c.
34     */
35    
36    
37     #include <sys/types.h>
38     #include <inttypes.h>
39     #include <sys/time.h>
40    
41     /* This is needed for undefining 'mips' or 'ppc', on weird systems: */
42     #include "../../config.h"
43    
44     #include "cpu_alpha.h"
45 dpavlin 6 #include "cpu_arm.h"
46 dpavlin 4 #include "cpu_hppa.h"
47     #include "cpu_mips.h"
48     #include "cpu_ppc.h"
49     #include "cpu_sparc.h"
50     #include "cpu_urisc.h"
51     #include "cpu_x86.h"
52    
53     struct cpu;
54     struct emul;
55     struct machine;
56     struct memory;
57    
58    
59     struct cpu_family {
60     struct cpu_family *next;
61     int arch;
62    
63     /* These are filled in by each CPU family's init function: */
64     char *name;
65     struct cpu *(*cpu_new)(struct memory *mem,
66     struct machine *machine,
67     int cpu_id, char *cpu_type_name);
68     void (*list_available_types)(void);
69     void (*register_match)(struct machine *m,
70     char *name, int writeflag,
71     uint64_t *valuep, int *match_register);
72     int (*disassemble_instr)(struct cpu *cpu,
73     unsigned char *instr, int running,
74     uint64_t dumpaddr, int bintrans);
75     void (*register_dump)(struct cpu *cpu,
76     int gprs, int coprocs);
77     int (*run)(struct emul *emul,
78     struct machine *machine);
79     void (*dumpinfo)(struct cpu *cpu);
80     void (*show_full_statistics)(struct machine *m);
81     void (*tlbdump)(struct machine *m, int x,
82     int rawflag);
83     int (*interrupt)(struct cpu *cpu, uint64_t irq_nr);
84     int (*interrupt_ack)(struct cpu *cpu,
85     uint64_t irq_nr);
86     };
87    
88    
89     struct cpu {
90     /* Pointer back to the machine this CPU is in: */
91     struct machine *machine;
92    
93     int byte_order;
94     int running;
95     int dead;
96     int bootstrap_cpu_flag;
97     int cpu_id;
98     char *name;
99    
100     struct memory *mem;
101     int (*memory_rw)(struct cpu *cpu,
102     struct memory *mem, uint64_t vaddr,
103     unsigned char *data, size_t len,
104     int writeflag, int cache_flags);
105     int (*translate_address)(struct cpu *, uint64_t vaddr,
106     uint64_t *return_addr, int flags);
107     void (*useremul_syscall)(struct cpu *cpu,
108     uint32_t code);
109    
110     /* Things that all CPU families have: */
111     uint64_t pc;
112    
113     /* CPU-family dependant: */
114     union {
115     struct alpha_cpu alpha;
116 dpavlin 6 struct arm_cpu arm;
117 dpavlin 4 struct hppa_cpu hppa;
118     struct mips_cpu mips;
119     struct ppc_cpu ppc;
120     struct sparc_cpu sparc;
121     struct urisc_cpu urisc;
122     struct x86_cpu x86;
123     } cd;
124     };
125    
126    
127     /* cpu.c: */
128     struct cpu *cpu_new(struct memory *mem, struct machine *machine,
129     int cpu_id, char *cpu_type_name);
130     void cpu_show_full_statistics(struct machine *m);
131     void cpu_tlbdump(struct machine *m, int x, int rawflag);
132     void cpu_register_match(struct machine *m, char *name,
133     int writeflag, uint64_t *valuep, int *match_register);
134     void cpu_register_dump(struct machine *m, struct cpu *cpu,
135     int gprs, int coprocs);
136     int cpu_disassemble_instr(struct machine *m, struct cpu *cpu,
137     unsigned char *instr, int running, uint64_t addr, int bintrans);
138     int cpu_interrupt(struct cpu *cpu, uint64_t irq_nr);
139     int cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr);
140     void cpu_run_init(struct emul *emul, struct machine *machine);
141     int cpu_run(struct emul *emul, struct machine *machine);
142     void cpu_run_deinit(struct emul *emul, struct machine *machine);
143     void cpu_dumpinfo(struct machine *m, struct cpu *cpu);
144     void cpu_list_available_types(void);
145     void cpu_show_cycles(struct machine *machine,
146     struct timeval *starttime, int64_t ncycles, int forced);
147     struct cpu_family *cpu_family_ptr_by_number(int arch);
148     void cpu_init(void);
149    
150    
151     #endif /* CPU_H */
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