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root/cebix/SheepShaver/src/include/emul_op.h
Revision: 1.3
Committed: 2003-09-07T14:33:54Z (21 years, 2 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.2: +31 -1 lines
Log Message:
- Integrate new NativeOp instructions to be used as trampolines to call
  native functions from ppc code.
- Little endian fixes in emul_op.cpp
- Add new 'gpch' 750 patch to workaround crash with MacOS 8.6
- Don't crash in Process Manager on reset/shutdown with MacOS 8.6
- We also have an experimental interrupt thread in emulation mode

File Contents

# Content
1 /*
2 * emul_op.h - 68k opcodes for ROM patches
3 *
4 * SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef EMUL_OP_H
22 #define EMUL_OP_H
23
24 // PowerPC opcodes
25 const uint32 POWERPC_NOP = 0x60000000;
26 const uint32 POWERPC_ILLEGAL = 0x00000000;
27 const uint32 POWERPC_BLR = 0x4e800020;
28 const uint32 POWERPC_BCTR = 0x4e800420;
29 const uint32 POWERPC_EMUL_OP = 0x18000000; // Base opcode for EMUL_OP opcodes (only used with PPC emulation)
30
31 enum { // Selectors for NATIVE_EXEC callbacks (only used with PPC emulation)
32 NATIVE_PATCH_NAME_REGISTRY,
33 NATIVE_VIDEO_INSTALL_ACCEL,
34 NATIVE_VIDEO_VBL,
35 NATIVE_VIDEO_DO_DRIVER_IO,
36 NATIVE_ETHER_IRQ,
37 NATIVE_ETHER_INIT,
38 NATIVE_ETHER_TERM,
39 NATIVE_ETHER_OPEN,
40 NATIVE_ETHER_CLOSE,
41 NATIVE_ETHER_WPUT,
42 NATIVE_ETHER_RSRV,
43 NATIVE_SERIAL_NOTHING,
44 NATIVE_SERIAL_OPEN,
45 NATIVE_SERIAL_PRIME_IN,
46 NATIVE_SERIAL_PRIME_OUT,
47 NATIVE_SERIAL_CONTROL,
48 NATIVE_SERIAL_STATUS,
49 NATIVE_SERIAL_CLOSE,
50 NATIVE_GET_RESOURCE,
51 NATIVE_GET_1_RESOURCE,
52 NATIVE_GET_IND_RESOURCE,
53 NATIVE_GET_1_IND_RESOURCE,
54 NATIVE_R_GET_RESOURCE,
55 NATIVE_OP_MAX
56 };
57 #define POWERPC_NATIVE_OP_FUNC(SELECTOR) ((uint32)(uintptr)&NativeOpTable[SELECTOR])
58 extern const uint32 NativeOpTable[NATIVE_OP_MAX];
59
60 // 68k opcodes
61 const uint16 M68K_ILLEGAL = 0x4afc;
62 const uint16 M68K_NOP = 0x4e71;
63 const uint16 M68K_RTS = 0x4e75;
64 const uint16 M68K_RTD = 0x4e74;
65 const uint16 M68K_JMP = 0x4ef9;
66 const uint16 M68K_JMP_A0 = 0x4ed0;
67 const uint16 M68K_JSR = 0x4eb9;
68 const uint16 M68K_JSR_A0 = 0x4e90;
69 enum { // Selectors for EMUL_OP opcodes
70 OP_BREAK, OP_XPRAM1, OP_XPRAM2, OP_XPRAM3, OP_NVRAM1, OP_NVRAM2, OP_NVRAM3,
71 OP_FIX_MEMTOP, OP_FIX_MEMSIZE, OP_FIX_BOOTSTACK,
72 OP_SONY_OPEN, OP_SONY_PRIME, OP_SONY_CONTROL, OP_SONY_STATUS,
73 OP_DISK_OPEN, OP_DISK_PRIME, OP_DISK_CONTROL, OP_DISK_STATUS,
74 OP_CDROM_OPEN, OP_CDROM_PRIME, OP_CDROM_CONTROL, OP_CDROM_STATUS,
75 OP_AUDIO_DISPATCH, OP_SOUNDIN_OPEN, OP_SOUNDIN_PRIME, OP_SOUNDIN_CONTROL, OP_SOUNDIN_STATUS, OP_SOUNDIN_CLOSE,
76 OP_ADBOP, OP_INSTIME, OP_RMVTIME, OP_PRIMETIME, OP_MICROSECONDS, OP_PUT_SCRAP, OP_GET_SCRAP,
77 OP_DEBUG_STR, OP_INSTALL_DRIVERS, OP_NAME_REGISTRY, OP_RESET, OP_IRQ,
78 OP_SCSI_DISPATCH, OP_SCSI_ATOMIC,
79 OP_NTRB_17_PATCH, OP_NTRB_17_PATCH2, OP_NTRB_17_PATCH3, OP_CHECKLOAD,
80 OP_EXTFS_COMM, OP_EXTFS_HFS, OP_IDLE_TIME,
81 OP_MAX
82 };
83 const uint16 M68K_EMUL_RETURN = 0xfe40; // Extended opcodes
84 const uint16 M68K_EXEC_RETURN = 0xfe41;
85 const uint16 M68K_EXEC_NATIVE = 0xfe42;
86 const uint16 M68K_EMUL_BREAK = 0xfe43;
87 const uint16 M68K_EMUL_OP_XPRAM1 = M68K_EMUL_BREAK + OP_XPRAM1;
88 const uint16 M68K_EMUL_OP_XPRAM2 = M68K_EMUL_BREAK + OP_XPRAM2;
89 const uint16 M68K_EMUL_OP_XPRAM3 = M68K_EMUL_BREAK + OP_XPRAM3;
90 const uint16 M68K_EMUL_OP_NVRAM1 = M68K_EMUL_BREAK + OP_NVRAM1;
91 const uint16 M68K_EMUL_OP_NVRAM2 = M68K_EMUL_BREAK + OP_NVRAM2;
92 const uint16 M68K_EMUL_OP_NVRAM3 = M68K_EMUL_BREAK + OP_NVRAM3;
93 const uint16 M68K_EMUL_OP_FIX_MEMTOP = M68K_EMUL_BREAK + OP_FIX_MEMTOP;
94 const uint16 M68K_EMUL_OP_FIX_MEMSIZE = M68K_EMUL_BREAK + OP_FIX_MEMSIZE;
95 const uint16 M68K_EMUL_OP_FIX_BOOTSTACK = M68K_EMUL_BREAK + OP_FIX_BOOTSTACK;
96 const uint16 M68K_EMUL_OP_SONY_OPEN = M68K_EMUL_BREAK + OP_SONY_OPEN;
97 const uint16 M68K_EMUL_OP_SONY_PRIME = M68K_EMUL_BREAK + OP_SONY_PRIME;
98 const uint16 M68K_EMUL_OP_SONY_CONTROL = M68K_EMUL_BREAK + OP_SONY_CONTROL;
99 const uint16 M68K_EMUL_OP_SONY_STATUS = M68K_EMUL_BREAK + OP_SONY_STATUS;
100 const uint16 M68K_EMUL_OP_DISK_OPEN = M68K_EMUL_BREAK + OP_DISK_OPEN;
101 const uint16 M68K_EMUL_OP_DISK_PRIME = M68K_EMUL_BREAK + OP_DISK_PRIME;
102 const uint16 M68K_EMUL_OP_DISK_CONTROL = M68K_EMUL_BREAK + OP_DISK_CONTROL;
103 const uint16 M68K_EMUL_OP_DISK_STATUS = M68K_EMUL_BREAK + OP_DISK_STATUS;
104 const uint16 M68K_EMUL_OP_CDROM_OPEN = M68K_EMUL_BREAK + OP_CDROM_OPEN;
105 const uint16 M68K_EMUL_OP_CDROM_PRIME = M68K_EMUL_BREAK + OP_CDROM_PRIME;
106 const uint16 M68K_EMUL_OP_CDROM_CONTROL = M68K_EMUL_BREAK + OP_CDROM_CONTROL;
107 const uint16 M68K_EMUL_OP_CDROM_STATUS = M68K_EMUL_BREAK + OP_CDROM_STATUS;
108 const uint16 M68K_EMUL_OP_AUDIO_DISPATCH = M68K_EMUL_BREAK + OP_AUDIO_DISPATCH;
109 const uint16 M68K_EMUL_OP_SOUNDIN_OPEN = M68K_EMUL_BREAK + OP_SOUNDIN_OPEN;
110 const uint16 M68K_EMUL_OP_SOUNDIN_CLOSE = M68K_EMUL_BREAK + OP_SOUNDIN_CLOSE;
111 const uint16 M68K_EMUL_OP_SOUNDIN_PRIME = M68K_EMUL_BREAK + OP_SOUNDIN_PRIME;
112 const uint16 M68K_EMUL_OP_SOUNDIN_CONTROL = M68K_EMUL_BREAK + OP_SOUNDIN_CONTROL;
113 const uint16 M68K_EMUL_OP_SOUNDIN_STATUS = M68K_EMUL_BREAK + OP_SOUNDIN_STATUS;
114 const uint16 M68K_EMUL_OP_ADBOP = M68K_EMUL_BREAK + OP_ADBOP;
115 const uint16 M68K_EMUL_OP_INSTIME = M68K_EMUL_BREAK + OP_INSTIME;
116 const uint16 M68K_EMUL_OP_RMVTIME = M68K_EMUL_BREAK + OP_RMVTIME;
117 const uint16 M68K_EMUL_OP_PRIMETIME = M68K_EMUL_BREAK + OP_PRIMETIME;
118 const uint16 M68K_EMUL_OP_MICROSECONDS = M68K_EMUL_BREAK + OP_MICROSECONDS;
119 const uint16 M68K_EMUL_OP_PUT_SCRAP = M68K_EMUL_BREAK + OP_PUT_SCRAP;
120 const uint16 M68K_EMUL_OP_GET_SCRAP = M68K_EMUL_BREAK + OP_GET_SCRAP;
121 const uint16 M68K_EMUL_OP_DEBUG_STR = M68K_EMUL_BREAK + OP_DEBUG_STR;
122 const uint16 M68K_EMUL_OP_INSTALL_DRIVERS = M68K_EMUL_BREAK + OP_INSTALL_DRIVERS;
123 const uint16 M68K_EMUL_OP_NAME_REGISTRY = M68K_EMUL_BREAK + OP_NAME_REGISTRY;
124 const uint16 M68K_EMUL_OP_RESET = M68K_EMUL_BREAK + OP_RESET;
125 const uint16 M68K_EMUL_OP_IRQ = M68K_EMUL_BREAK + OP_IRQ;
126 const uint16 M68K_EMUL_OP_SCSI_DISPATCH = M68K_EMUL_BREAK + OP_SCSI_DISPATCH;
127 const uint16 M68K_EMUL_OP_SCSI_ATOMIC = M68K_EMUL_BREAK + OP_SCSI_ATOMIC;
128 const uint16 M68K_EMUL_OP_NTRB_17_PATCH = M68K_EMUL_BREAK + OP_NTRB_17_PATCH;
129 const uint16 M68K_EMUL_OP_NTRB_17_PATCH2 = M68K_EMUL_BREAK + OP_NTRB_17_PATCH2;
130 const uint16 M68K_EMUL_OP_NTRB_17_PATCH3 = M68K_EMUL_BREAK + OP_NTRB_17_PATCH3;
131 const uint16 M68K_EMUL_OP_CHECKLOAD = M68K_EMUL_BREAK + OP_CHECKLOAD;
132 const uint16 M68K_EMUL_OP_EXTFS_COMM = M68K_EMUL_BREAK + OP_EXTFS_COMM;
133 const uint16 M68K_EMUL_OP_EXTFS_HFS = M68K_EMUL_BREAK + OP_EXTFS_HFS;
134 const uint16 M68K_EMUL_OP_IDLE_TIME = M68K_EMUL_BREAK + OP_IDLE_TIME;
135
136 extern "C" void EmulOp(M68kRegisters *r, uint32 pc, int selector);
137
138 #endif