1 /* do not edit automatically generated by mc from SYSTEM. */
2 /* SYSTEM.def provides access to the SYSTEM dependent module.
4 Copyright (C) 2001-2024 Free Software Foundation, Inc.
5 Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
7 This file is part of GNU Modula-2.
9 GNU Modula-2 is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GNU Modula-2 is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 Under Section 7 of GPL version 3, you are granted additional
20 permissions described in the GCC Runtime Library Exception, version
21 3.1, as published by the Free Software Foundation.
23 You should have received a copy of the GNU General Public License and
24 a copy of the GCC Runtime Library Exception along with this program;
25 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
26 <http://www.gnu.org/licenses/>. */
29 #if !defined (_SYSTEM_H)
38 # if !defined (PROC_D)
40 typedef void (*PROC_t
) (void);
41 typedef struct { PROC_t proc
; } PROC
;
45 # if defined (_SYSTEM_C)
48 # define EXTERN extern
51 # define SYSTEM_BITSPERBYTE 8
52 # define SYSTEM_BYTESPERWORD 4
55 ShiftVal - is a runtime procedure whose job is to implement
56 the SHIFT procedure of ISO SYSTEM. GNU Modula-2 will
57 inline a SHIFT of a single WORD sized set and will only
58 call this routine for larger sets.
61 EXTERN
void SYSTEM_ShiftVal (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, int ShiftCount
);
64 ShiftLeft - performs the shift left for a multi word set.
65 This procedure might be called by the back end of
66 GNU Modula-2 depending whether amount is known at
70 EXTERN
void SYSTEM_ShiftLeft (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, unsigned int ShiftCount
);
73 ShiftRight - performs the shift left for a multi word set.
74 This procedure might be called by the back end of
75 GNU Modula-2 depending whether amount is known at
79 EXTERN
void SYSTEM_ShiftRight (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, unsigned int ShiftCount
);
82 RotateVal - is a runtime procedure whose job is to implement
83 the ROTATE procedure of ISO SYSTEM. GNU Modula-2 will
84 inline a ROTATE of a single WORD (or less)
85 sized set and will only call this routine for larger
89 EXTERN
void SYSTEM_RotateVal (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, int RotateCount
);
92 RotateLeft - performs the rotate left for a multi word set.
93 This procedure might be called by the back end of
94 GNU Modula-2 depending whether amount is known at
98 EXTERN
void SYSTEM_RotateLeft (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, unsigned int RotateCount
);
101 RotateRight - performs the rotate right for a multi word set.
102 This procedure might be called by the back end of
103 GNU Modula-2 depending whether amount is known at
107 EXTERN
void SYSTEM_RotateRight (unsigned int *s
, unsigned int _s_high
, unsigned int *d
, unsigned int _d_high
, unsigned int SetSizeInBits
, unsigned int RotateCount
);