2 * Copyright (c) 2007, Takahide Matsutsuka.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer in the documentation and/or other materials provided
13 * with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 * products derived from this software without specific prior
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * Z80 machine-specific difinitions for supporting multithread.
36 * Takahide Matsutsuka <markn@markn.org>
41 /* Unit of the stack is 2byte wide. */
42 #ifndef MTARCH_STACKSIZE
43 #define MTARCH_STACKSIZE 128
44 #endif /* MTARCH_STACKSIZE */
46 struct mtarch_thread
{
48 * On top of the mtarch_thread must be the address for the stack pointer.
49 * See details at mtarch_switch in mtarch.c
53 * Stack is 2-byte wide, so please note that you need 2 * MTARCH_STACKSIZE
54 * bytes for the stack area for each thread.
56 u16_t stack
[MTARCH_STACKSIZE
];
60 * A function for debugging purpose, placed here by following other implementations.
62 int mtarch_stack_usage(struct mtarch_thread
*t
);
64 #endif /* __MTARCH_H__ */