forked from Mirror/GodMode9
016eac6982
- maps a regular ARM-style exception vector table instead of using the bootrom vector redirection features a ton of bugs because I'm missing something, it actually manages to boot fb3DS v1.2 and BAX fine, but fails to boot itself
13 lines
368 B
C
Executable File
13 lines
368 B
C
Executable File
#pragma once
|
|
|
|
#include <types.h>
|
|
|
|
// The timer interval is calculated using the following equation:
|
|
// T = [(PRESCALER_value + 1) * (Load_value + 1) * 2] / CPU_CLK
|
|
// therefore
|
|
// Load_value = [(CPU_CLK / 2) * (T / (PRESCALER_value + 1))] - 1
|
|
|
|
#define BASE_CLKRATE (268111856)
|
|
|
|
#define CLK_FREQ_TO_INTERVAL(f, p) ((BASE_CLKRATE/2) * ((f) / ((p) + 1)) - 1)
|