2 * Alpha emulation cpu definitions for qemu.
4 * Copyright (c) 2007 Jocelyn Mayer
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #if !defined (__CPU_ALPHA_H__)
22 #define __CPU_ALPHA_H__
26 #define TARGET_LONG_BITS 64
33 #include "softfloat.h"
35 /* XXX: put this in a common place */
36 #define likely(x) __builtin_expect(!!(x), 1)
37 #define unlikely(x) __builtin_expect(!!(x), 0)
39 #define TARGET_HAS_ICE 1
41 #define ELF_MACHINE EM_ALPHA
43 #define ICACHE_LINE_SIZE 32
44 #define DCACHE_LINE_SIZE 32
46 #define TARGET_PAGE_BITS 12
50 /* Alpha major type */
56 ALPHA_EV5 = 5, /* 21164 */
57 ALPHA_EV45 = 6, /* 21064A */
58 ALPHA_EV56 = 7, /* 21164A */
69 ALPHA_LCA_1 = 1, /* 21066 */
70 ALPHA_LCA_2 = 2, /* 20166 */
71 ALPHA_LCA_3 = 3, /* 21068 */
72 ALPHA_LCA_4 = 4, /* 21068 */
73 ALPHA_LCA_5 = 5, /* 21066A */
74 ALPHA_LCA_6 = 6, /* 21068A */
79 ALPHA_EV5_1 = 1, /* Rev BA, CA */
80 ALPHA_EV5_2 = 2, /* Rev DA, EA */
81 ALPHA_EV5_3 = 3, /* Pass 3 */
82 ALPHA_EV5_4 = 4, /* Pass 3.2 */
83 ALPHA_EV5_5 = 5, /* Pass 4 */
88 ALPHA_EV45_1 = 1, /* Pass 1 */
89 ALPHA_EV45_2 = 2, /* Pass 1.1 */
90 ALPHA_EV45_3 = 3, /* Pass 2 */
95 ALPHA_EV56_1 = 1, /* Pass 1 */
96 ALPHA_EV56_2 = 2, /* Pass 2 */
100 IMPLVER_2106x = 0, /* EV4, EV45 & LCA45 */
101 IMPLVER_21164 = 1, /* EV5, EV56 & PCA45 */
102 IMPLVER_21264 = 2, /* EV6, EV67 & EV68x */
103 IMPLVER_21364 = 3, /* EV7 & EV79 */
107 AMASK_BWX = 0x00000001,
108 AMASK_FIX = 0x00000002,
109 AMASK_CIX = 0x00000004,
110 AMASK_MVI = 0x00000100,
111 AMASK_TRAP = 0x00000200,
112 AMASK_PREFETCH = 0x00001000,
116 VAX_ROUND_NORMAL = 0,
121 IEEE_ROUND_NORMAL = 0,
128 /* IEEE floating-point operations encoding */
140 FP_ROUND_CHOPPED = 0x0,
141 FP_ROUND_MINUS = 0x1,
142 FP_ROUND_NORMAL = 0x2,
143 FP_ROUND_DYNAMIC = 0x3,
146 /* Internal processor registers */
147 /* XXX: TOFIX: most of those registers are implementation dependant */
168 IPR_HW_INT_CLR = 0x0E,
174 IPR_IC_FLUSH_ASM = 0x12,
184 IPR_DTB_ALTMODE = 0xA6,
231 typedef struct CPUAlphaState CPUAlphaState;
233 typedef struct pal_handler_t pal_handler_t;
234 struct pal_handler_t {
236 void (*reset)(CPUAlphaState *env);
237 /* Uncorrectable hardware error */
238 void (*machine_check)(CPUAlphaState *env);
239 /* Arithmetic exception */
240 void (*arithmetic)(CPUAlphaState *env);
241 /* Interrupt / correctable hardware error */
242 void (*interrupt)(CPUAlphaState *env);
244 void (*dfault)(CPUAlphaState *env);
246 void (*dtb_miss_pal)(CPUAlphaState *env);
247 /* DTB miss native */
248 void (*dtb_miss_native)(CPUAlphaState *env);
249 /* Unaligned access */
250 void (*unalign)(CPUAlphaState *env);
252 void (*itb_miss)(CPUAlphaState *env);
253 /* Instruction stream access violation */
254 void (*itb_acv)(CPUAlphaState *env);
255 /* Reserved or privileged opcode */
256 void (*opcdec)(CPUAlphaState *env);
257 /* Floating point exception */
258 void (*fen)(CPUAlphaState *env);
259 /* Call pal instruction */
260 void (*call_pal)(CPUAlphaState *env, uint32_t palcode);
263 struct CPUAlphaState {
266 float_status fp_status;
271 uint64_t ipr[IPR_LAST];
274 int saved_mode; /* Used for HW_LD / HW_ST */
277 double ft0, ft1, ft2;
279 /* Those resources are used only in Qemu core */
283 int user_mode_only; /* user mode only simulation */
289 int interrupt_request;
294 pal_handler_t *pal_handler;
300 FEATURE_ASN = 0x00000001,
301 FEATURE_SPS = 0x00000002,
302 FEATURE_VIRBND = 0x00000004,
303 FEATURE_TBCHK = 0x00000008,
310 EXCP_HW_INTERRUPT = 0x00E0,
311 EXCP_DFAULT = 0x01E0,
312 EXCP_DTB_MISS_PAL = 0x09E0,
313 EXCP_ITB_MISS = 0x03E0,
314 EXCP_ITB_ACV = 0x07E0,
315 EXCP_DTB_MISS_NATIVE = 0x08E0,
316 EXCP_UNALIGN = 0x11E0,
317 EXCP_OPCDEC = 0x13E0,
319 EXCP_CALL_PAL = 0x2000,
320 EXCP_CALL_PALP = 0x3000,
321 EXCP_CALL_PALE = 0x4000,
322 /* Pseudo exception for console */
323 EXCP_CONSOLE_DISPATCH = 0x4001,
324 EXCP_CONSOLE_FIXUP = 0x4002,
327 /* Arithmetic exception */
333 PALCODE_CALL = 0x00000000,
334 PALCODE_LD = 0x01000000,
335 PALCODE_ST = 0x02000000,
336 PALCODE_MFPR = 0x03000000,
337 PALCODE_MTPR = 0x04000000,
338 PALCODE_REI = 0x05000000,
339 PALCODE_INIT = 0xF0000000,
379 int cpu_alpha_mfpr (CPUState *env, int iprn, uint64_t *valp);
380 int cpu_alpha_mtpr (CPUState *env, int iprn, uint64_t val, uint64_t *oldvalp);
381 void cpu_loop_exit (void);
382 void pal_init (CPUState *env);
383 void call_pal (CPUState *env, int palcode);
385 #endif /* !defined (__CPU_ALPHA_H__) */