mirror of
https://github.com/afska/gba-link-connection.git
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89 lines
1.5 KiB
C++
89 lines
1.5 KiB
C++
#ifndef LINK_EXAMPLES_COMMON_H
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#define LINK_EXAMPLES_COMMON_H
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#include <tonc.h>
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#include <string>
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namespace Common {
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// TTE
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inline void initTTE() {
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REG_DISPCNT = DCNT_MODE0 | DCNT_BG0;
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tte_init_se_default(0, BG_CBB(0) | BG_SBB(31));
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}
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inline void log(std::string text) {
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tte_erase_screen();
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tte_write("#{P:0,0}");
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tte_write(text.c_str());
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}
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// BIOS
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inline void ISR_reset() {
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REG_IME = 0;
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RegisterRamReset(RESET_REG | RESET_VRAM);
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#if MULTIBOOT_BUILD == 1
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*(vu8*)0x03007FFA = 0x01;
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#endif
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SoftReset();
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}
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// Input
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inline bool didPress(u16 key, bool& pressed) {
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u16 keys = ~REG_KEYS & KEY_ANY;
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bool isPressedNow = false;
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if ((keys & key) && !pressed) {
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pressed = true;
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isPressedNow = true;
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}
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if (pressed && !(keys & key))
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pressed = false;
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return isPressedNow;
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}
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inline void waitForKey(u16 key) {
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u16 keys;
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do {
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keys = ~REG_KEYS & KEY_ANY;
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} while (!(keys & key));
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}
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// Profiling
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inline u32 toMs(u32 cycles) {
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// CPU Frequency * time per frame = cycles per frame
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// 16780000 * (1/60) ~= 279666
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return (cycles * 1000) / (279666 * 60);
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}
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inline void profileStart() {
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REG_TM1CNT_L = 0;
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REG_TM2CNT_L = 0;
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REG_TM1CNT_H = 0;
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REG_TM2CNT_H = 0;
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REG_TM2CNT_H = TM_ENABLE | TM_CASCADE;
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REG_TM1CNT_H = TM_ENABLE | TM_FREQ_1;
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}
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inline u32 profileStop() {
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REG_TM1CNT_H = 0;
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REG_TM2CNT_H = 0;
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return (REG_TM1CNT_L | (REG_TM2CNT_L << 16));
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}
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// Bits
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inline bool isBitHigh(u16 data, u8 bit) {
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return (data >> bit) & 1;
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}
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} // namespace Common
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#endif // LINK_EXAMPLES_COMMON_H
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