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/* Copyright (c) 1999, Michael Stumpf
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE. */
/*
CtoASM.inc
Specify the parameter passing from C functions
Michael Stumpf, (c) 9. August 1999
*/
#ifndef __CTOASM_INC
#define __CTOASM_INC
#define rP0 r25 /* first incoming parameter (MSB) */
#define rP1 r24 /* 2nd incoming parameter */
#define rP2 r23 /* 3rd incoming parameter */
#define rP3 r22 /* 4th incoming parameter */
#define rP4 r21 /* */
#define rP5 r20 /* */
#define rP6 r19 /* */
#define rP7 r18 /* */
#define rByte r24 /* a function returning a byte passes this as if it was
an integer in R25:R24, but R25 is unused */
/* temporary registers, usable without saving,
maybe clobbered after an external function call */
#ifndef __tmp_reg__
#define __tmp_reg__ r0
#endif
/* r1 MUST be cleared on return */
#ifndef __zero_reg__
#define __zero_reg__ r1
#endif
#define rTI0 r31 /* 1st temporary with immidiate */
#define rTI1 r30 /* 2nd temporary with immidiate */
#define rTI2 r27 /* 3rd temporary with immidiate */
#define rTI3 r26 /* 4th temporary with immidiate */
/* registers wich have to be saved */
#define rSI0 r17 /* first saved (pushed) register with immidiate */
#define rSI1 r16 /* 2nd push register */
#define rSI2 r29 /* 3rd saved (pushed) register */
#define rSI3 r28 /* 4th saved (pushed) register */
#define rS0 r15 /* 3rd pushed register */
#define rS1 r14 /* 4th pushed register */
#define rS2 r13 /* */
#define rS3 r12 /* */
#define rS4 r11 /* */
#define rS5 r10 /* */
#define rS6 r9 /* */
#define rS7 r8 /* */
#define rS8 r7 /* */
#define rS9 r6 /* */
#define rS10 r5 /* */
#define rS11 r4 /* */
#define rS12 r3 /* */
#define rS13 r2 /* */
#endif /* __CTOASM_INC */
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