mirror of https://github.com/LemonBoy/grape.git
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
#include <nds.h>
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#include "emu.h"
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static u8 key_map[12] = {
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0x0d, // A
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0x20, // B
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0x80, // SELECT
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0x80, // START
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0x4c, // RIGHT
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0x48, // LEFT
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0x4b, // UP
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0x4a, // DOWN
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0x80, // R
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0x80, // L
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0x1b, // X
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0x80, // Y
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};
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void update_input () ITCM_CODE;
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void update_input ()
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{
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u32 keys;
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int kbd_key;
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keys = keysDown() | keysHeld();
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// Send keyboard scancodes when a key is pressed
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if (emu_input == INPUT_KEYBOARD && (keys&0xfff)) {
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int bit_set = __builtin_ffs(keys);
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if (bit_set)
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keybd_latch = 0x80 ^ key_map[bit_set-1];
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}
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if (emu_input == INPUT_JOYSTICK) {
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jstk_btn[0] = (keys&KEY_X) ? 0x80 : 0x00;
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jstk_btn[1] = (keys&KEY_Y) ? 0x80 : 0x00;
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jstk_btn[2] = (keys&KEY_B) ? 0x80 : 0x00;
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}
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kbd_key = keyboardUpdate();
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if (kbd_key > 0) {
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switch (kbd_key) {
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case DVK_ENTER:
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keybd_latch = 0x8d;
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return;
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default:
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if (kbd_key >= '`') keybd_latch = 0x80 | (kbd_key - 32);
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else keybd_latch = 0x80 | kbd_key;
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return;
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}
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}
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}
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