1 /* Simulator header for cgen parallel support.
2 Copyright (C) 1999 Free Software Foundation, Inc.
3 Contributed by Cygnus Solutions.
5 This file is part of the GNU instruction set simulator.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 /* Kinds of writes stored on the write queue. */
25 enum cgen_write_queue_kind {
26 CGEN_BI_WRITE, CGEN_QI_WRITE, CGEN_SI_WRITE, CGEN_SF_WRITE,
28 CGEN_FN_HI_WRITE, CGEN_FN_SI_WRITE, CGEN_FN_DI_WRITE, CGEN_FN_DF_WRITE,
29 CGEN_MEM_QI_WRITE, CGEN_MEM_HI_WRITE, CGEN_MEM_SI_WRITE, CGEN_MEM_DI_WRITE,
34 /* Element of the write queue. */
36 enum cgen_write_queue_kind kind; /* Used to select union member below. */
60 void (*function)(SIM_CPU *, UINT, UHI);
65 void (*function)(SIM_CPU *, UINT, USI);
70 void (*function)(SIM_CPU *, UINT, DI);
75 void (*function)(SIM_CPU *, UINT, DI);
98 } CGEN_WRITE_QUEUE_ELEMENT;
100 #define CGEN_WRITE_QUEUE_ELEMENT_KIND(element) ((element)->kind)
102 extern void cgen_write_queue_element_execute (
103 SIM_CPU *, CGEN_WRITE_QUEUE_ELEMENT *
106 /* Instance of the queue for parallel write-after support. */
107 /* FIXME: Should be dynamic? */
108 #define CGEN_WRITE_QUEUE_SIZE (4 * 4) /* 4 writes x 4 insns -- for now. */
112 CGEN_WRITE_QUEUE_ELEMENT q[CGEN_WRITE_QUEUE_SIZE];
115 #define CGEN_WRITE_QUEUE_CLEAR(queue) ((queue)->index = 0)
116 #define CGEN_WRITE_QUEUE_INDEX(queue) ((queue)->index)
117 #define CGEN_WRITE_QUEUE_ELEMENT(queue, ix) (&(queue)->q[(ix)])
119 #define CGEN_WRITE_QUEUE_NEXT(queue) ( \
120 (queue)->index < CGEN_WRITE_QUEUE_SIZE \
121 ? &(queue)->q[(queue)->index++] \
122 : cgen_write_queue_overflow (queue) \
125 extern CGEN_WRITE_QUEUE_ELEMENT *cgen_write_queue_overflow (CGEN_WRITE_QUEUE *);
127 /* Functions for queuing writes. Used by semantic code. */
128 extern void sim_queue_bi_write (SIM_CPU *, BI *, BI);
129 extern void sim_queue_qi_write (SIM_CPU *, UQI *, UQI);
130 extern void sim_queue_si_write (SIM_CPU *, SI *, SI);
131 extern void sim_queue_sf_write (SIM_CPU *, SI *, SF);
133 extern void sim_queue_pc_write (SIM_CPU *, USI);
135 extern void sim_queue_fn_hi_write (SIM_CPU *, void (*)(SIM_CPU *, UINT, UHI), UINT, UHI);
136 extern void sim_queue_fn_si_write (SIM_CPU *, void (*)(SIM_CPU *, UINT, USI), UINT, SI);
137 extern void sim_queue_fn_di_write (SIM_CPU *, void (*)(SIM_CPU *, UINT, DI), UINT, DI);
138 extern void sim_queue_fn_df_write (SIM_CPU *, void (*)(SIM_CPU *, UINT, DI), UINT, DF);
140 extern void sim_queue_mem_qi_write (SIM_CPU *, SI, QI);
141 extern void sim_queue_mem_hi_write (SIM_CPU *, SI, HI);
142 extern void sim_queue_mem_si_write (SIM_CPU *, SI, SI);
143 extern void sim_queue_mem_di_write (SIM_CPU *, SI, DI);
144 extern void sim_queue_mem_df_write (SIM_CPU *, SI, DF);
146 #endif /* CGEN_PAR_H */