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_QI_WRITE
, CGEN_SI_WRITE
, CGEN_SF_WRITE
,
28 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
,
33 /* Element of the write queue. */
35 enum cgen_write_queue_kind kind
; /* Used to select union member below. */
55 void (*function
)(SIM_CPU
*, UINT
, USI
);
60 void (*function
)(SIM_CPU
*, UINT
, DI
);
65 void (*function
)(SIM_CPU
*, UINT
, DI
);
80 } CGEN_WRITE_QUEUE_ELEMENT
;
82 #define CGEN_WRITE_QUEUE_ELEMENT_KIND(element) ((element)->kind)
84 extern void cgen_write_queue_element_execute (
85 SIM_CPU
*, CGEN_WRITE_QUEUE_ELEMENT
*
88 /* Instance of the queue for parallel write-after support. */
89 /* FIXME: Should be dynamic? */
90 #define CGEN_WRITE_QUEUE_SIZE (4 * 4) /* 4 writes x 4 insns -- for now. */
94 CGEN_WRITE_QUEUE_ELEMENT q
[CGEN_WRITE_QUEUE_SIZE
];
97 #define CGEN_WRITE_QUEUE_CLEAR(queue) ((queue)->index = 0)
98 #define CGEN_WRITE_QUEUE_INDEX(queue) ((queue)->index)
99 #define CGEN_WRITE_QUEUE_ELEMENT(queue, ix) (&(queue)->q[(ix)])
101 #define CGEN_WRITE_QUEUE_NEXT(queue) ( \
102 (queue)->index < CGEN_WRITE_QUEUE_SIZE \
103 ? &(queue)->q[(queue)->index++] \
104 : cgen_write_queue_overflow (queue) \
107 extern CGEN_WRITE_QUEUE_ELEMENT
*cgen_write_queue_overflow (CGEN_WRITE_QUEUE
*);
109 /* Functions for queuing writes. Used by semantic code. */
110 extern void sim_queue_qi_write (SIM_CPU
*, UQI
*, UQI
);
111 extern void sim_queue_si_write (SIM_CPU
*, SI
*, SI
);
112 extern void sim_queue_sf_write (SIM_CPU
*, SI
*, SF
);
114 extern void sim_queue_pc_write (SIM_CPU
*, USI
);
116 extern void sim_queue_fn_si_write (SIM_CPU
*, void (*)(SIM_CPU
*, UINT
, USI
), UINT
, SI
);
117 extern void sim_queue_fn_di_write (SIM_CPU
*, void (*)(SIM_CPU
*, UINT
, DI
), UINT
, DI
);
118 extern void sim_queue_fn_df_write (SIM_CPU
*, void (*)(SIM_CPU
*, UINT
, DI
), UINT
, DF
);
120 extern void sim_queue_mem_qi_write (SIM_CPU
*, SI
, QI
);
121 extern void sim_queue_mem_hi_write (SIM_CPU
*, SI
, HI
);
122 extern void sim_queue_mem_si_write (SIM_CPU
*, SI
, SI
);
124 #endif /* CGEN_PAR_H */