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/* unofficial gameplaySP kai
*
* Copyright (C) 2006 Exophase <exophase@gmail.com>
* Copyright (C) 2007 takka <takka@tfact.net>
* Copyright (C) 2007 ????? <?????>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "common.h"
void trigger_key(uint32_t key);
void trigger_key(uint32_t key)
{
uint32_t p1_cnt = io_registers[REG_P1CNT];
if((p1_cnt >> 14) & 0x01)
{
uint32_t key_intersection = (p1_cnt & key) & 0x3FF;
if(p1_cnt >> 15)
{
if(key_intersection == (p1_cnt & 0x3FF))
raise_interrupt(IRQ_KEYPAD);
}
else
{
if(key_intersection)
raise_interrupt(IRQ_KEYPAD);
}
}
}
// These are the last keys pressed, in the GBA bitfield format.
// They are stored in saved states.
uint32_t key = 0;
uint32_t rapidfire_flag = 1;
// 仿真过程输入
uint32_t update_input()
{
enum ReGBA_Buttons new_key = ReGBA_GetPressedButtons();
if (new_key & REGBA_BUTTON_MENU)
{
return ReGBA_Menu(REGBA_MENU_ENTRY_REASON_MENU_KEY);
}
bool RapidFireUsed = false;
if (new_key & REGBA_BUTTON_RAPID_A)
{
if (rapidfire_flag) new_key |= REGBA_BUTTON_A;
else new_key &= ~REGBA_BUTTON_A;
RapidFireUsed = true;
}
if (new_key & REGBA_BUTTON_RAPID_B)
{
if (rapidfire_flag) new_key |= REGBA_BUTTON_B;
else new_key &= ~REGBA_BUTTON_B;
RapidFireUsed = true;
}
if (RapidFireUsed)
{
rapidfire_flag = !rapidfire_flag;
}
if((new_key | key) != key)
trigger_key(new_key);
key = new_key;
io_registers[REG_P1] = (~key) & 0x3FF;
return 0;
}
// type = READ / WRITE_MEM
#define input_savestate_body(type) \
{ \
FILE_##type##_VARIABLE(g_state_buffer_ptr, key); \
} \
void input_read_mem_savestate()
input_savestate_body(READ_MEM)
void input_write_mem_savestate()
input_savestate_body(WRITE_MEM)
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