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31 lines
541 B
C
31 lines
541 B
C
#include <gba.h>
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#define MEMCNT (*(vu32*) 0x04000800)
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IWRAM_CODE bool overclock_ewram() {
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bool success = false;
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int ime = REG_IME;
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REG_IME = 0;
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EWRAM_DATA static volatile int test_var;
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u32 old_memcnt = MEMCNT;
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test_var = 0;
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if (old_memcnt == 0x0D000020) {
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MEMCNT = 0x0E000020;
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test_var = -1;
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if (test_var == -1)
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success = true;
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else
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MEMCNT = 0x0D000020;
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}
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else if (old_memcnt == 0x0E000020) {
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success = true;
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}
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REG_IME = ime;
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return success;
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}
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IWRAM_CODE void restore_ewram_clocks() {
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MEMCNT = 0x0D000020;
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} |