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Use little_endian.h in libsys4

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kichikuou
2024-05-19 10:59:50 +09:00
parent f47e5e5a82
commit 7ef9719cc7
21 changed files with 22 additions and 98 deletions
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include/little_endian.h
-76
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@@ -1,76 +0,0 @@
/* Copyright (C) 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
*
* Based on code from xsystem35
* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
* 1998- <masaki-c@is.aist-nara.ac.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://gnu.org/licenses/>.
*/
#ifndef LITTLE_ENDIAN_H
#define LITTLE_ENDIAN_H
#include <stdint.h>
// no need to decode on byte-addressable, little-endian arch
#if defined(__i386__) || defined(__x86_64__)
#define LittleEndian_getDW(b, i) (*((int32_t*)((uint8_t*)(b)+(i))))
#define LittleEndian_getW(b, i) (*((int16_t*)((uint8_t*)(b)+(i))))
#else
static inline int32_t LittleEndian_getDW(const uint8_t *b, int i)
{
int c0, c1, c2, c3;
int d0, d1;
c0 = *(b + i + 0);
c1 = *(b + i + 1);
c2 = *(b + i + 2);
c3 = *(b + i + 3);
d0 = c0 + (c1 << 8);
d1 = c2 + (c3 << 8);
return d0 + (d1 << 16);
}
static inline int16_t LittleEndian_getW(const uint8_t *b, int i)
{
int c0, c1;
c0 = *(b + i + 0);
c1 = *(b + i + 1);
return c0 + (c1 << 8);
}
#endif /* defined(__i386__) || defined(__x86_64__) */
static inline int32_t LittleEndian_get3B(const uint8_t *b, int i)
{
int c0, c1, c2;
c0 = *(b + i + 0);
c1 = *(b + i + 1);
c2 = *(b + i + 2);
return c0 + (c1 << 8) + (c2 << 16);
}
static inline void LittleEndian_putDW(uint8_t *dst, int i, uint32_t dword)
{
dst[i] = (uint8_t)(dword);
dst[i+1] = (uint8_t)(dword >> 8);
dst[i+2] = (uint8_t)(dword >> 16);
dst[i+3] = (uint8_t)(dword >> 24);
}
static inline void LittleEndian_putW(uint8_t *dst, int i, uint16_t word)
{
dst[i] = word & 0xFF;
dst[i+1] = word >> 8;
}
#endif /* LITTLE_ENDIAN_H */
include/vm.h
+1 -1
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@@ -138,7 +138,7 @@ _Noreturn void vm_exit(int code);
#endif
#ifdef VM_PRIVATE
#include "little_endian.h"
#include "system4/little_endian.h"
#include "system4/ain.h"
struct function_call {