489e942bd2
MGBA debugging must be enabled using debug::open and disabled using debug::close. This commit adds logging through debug::puts. TODO: add logging using debug::printf and debug::write.
50 lines
1.0 KiB
C++
50 lines
1.0 KiB
C++
#include "debug.hpp"
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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#include <tonc.h>
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namespace debug {
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/**
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* \brief MGBA debug registers and constants
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*/
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namespace reg {
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/**
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* \brief MGBA debug enable register.
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*
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* When 0xC0DE is written to the register, debug output is enabled.
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* When 0 is written to the register, debug output is disabled.
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* Will be set to 0x1DEA when successfully enabled.
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*/
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static volatile uint16_t* enable = reinterpret_cast<uint16_t*>(0x4FFF780);
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/**
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* \brief MGBA debug flags register.
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*/
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static volatile uint16_t* flags = reinterpret_cast<uint16_t*>(0x4FFF700);
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/**
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* \brief MGBA debug string register.
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*
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* Max length of 0x100 (256)
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*/
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static char* string = reinterpret_cast<char*>(0x4FFF600);
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constexpr size_t string_len = 0x100;
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}; // namespace reg
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void puts(const char* msg, level lvl) {
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std::strncpy(reg::string, msg, reg::string_len);
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*reg::flags = (lvl) | 0x100;
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}
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bool open() {
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*reg::enable = 0xC0DE;
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return *reg::enable ==0x1DEA;
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}
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void close() {
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*reg::enable = 0;
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}
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}; // namespace debug
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