SRB2/src/asm_defs.inc
2020-02-19 14:08:45 -08:00

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1.4 KiB
PHP

// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file asm_defs.inc
/// \brief must match the C structures
#ifndef __ASM_DEFS__
#define __ASM_DEFS__
// this makes variables more noticable,
// and make the label match with C code
// Linux, unlike DOS, has no "_" 19990119 by Kin
// and nasm needs .data code segs under linux 20010210 by metzgermeister
// FIXME: nasm ignores these settings, so I put the macros into the makefile
#ifdef __ELF__
#define C(label) label
#define CODE_SEG .data
#else
#define C(label) _##label
#define CODE_SEG .text
#endif
/* This is a more readable way to access the arguments passed from C code */
/* PLEASE NOTE: it is supposed that all arguments passed from C code are */
/* 32bit integer (INT32, long, and most *pointers) */
#define ARG1 8(%ebp)
#define ARG2 12(%ebp)
#define ARG3 16(%ebp)
#define ARG4 20(%ebp)
#define ARG5 24(%ebp)
#define ARG6 28(%ebp)
#define ARG7 32(%ebp)
#define ARG8 36(%ebp)
#define ARG9 40(%ebp) //(c)tm ... Allegro by Shawn Hargreaves.
#endif