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Merge pull request #599 from wheremyfoodat/lua-float

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Lua: Expose read/write functions for floats and doubles
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wheremyfoodat 2024-09-28 20:23:12 +00:00 • committed by GitHub
commit d14b1da5a1
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1 changed files with 35 additions and 0 deletions
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src/lua.cpp
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@ -130,6 +130,32 @@ MAKE_MEMORY_FUNCTIONS(32)
MAKE_MEMORY_FUNCTIONS(64)
#undef MAKE_MEMORY_FUNCTIONS
static int readFloatThunk(lua_State* L) {
const u32 vaddr = (u32)lua_tonumber(L, 1);
lua_pushnumber(L, (lua_Number)Helpers::bit_cast<float, u32>(LuaManager::g_emulator->getMemory().read32(vaddr)));
return 1;
}
static int writeFloatThunk(lua_State* L) {
const u32 vaddr = (u32)lua_tonumber(L, 1);
const float value = (float)lua_tonumber(L, 2);
LuaManager::g_emulator->getMemory().write32(vaddr, Helpers::bit_cast<u32, float>(value));
return 0;
}
static int readDoubleThunk(lua_State* L) {
const u32 vaddr = (u32)lua_tonumber(L, 1);
lua_pushnumber(L, (lua_Number)Helpers::bit_cast<double, u64>(LuaManager::g_emulator->getMemory().read64(vaddr)));
return 1;
}
static int writeDoubleThunk(lua_State* L) {
const u32 vaddr = (u32)lua_tonumber(L, 1);
const double value = (double)lua_tonumber(L, 2);
LuaManager::g_emulator->getMemory().write64(vaddr, Helpers::bit_cast<u64, double>(value));
return 0;
}
static int getAppIDThunk(lua_State* L) {
std::optional<u64> id = LuaManager::g_emulator->getMemory().getProgramID();
@ -248,10 +274,14 @@ static constexpr luaL_Reg functions[] = {
{ "__read16", read16Thunk },
{ "__read32", read32Thunk },
{ "__read64", read64Thunk },
{ "__readFloat", readFloatThunk },
{ "__readDouble", readDoubleThunk },
{ "__write8", write8Thunk} ,
{ "__write16", write16Thunk },
{ "__write32", write32Thunk },
{ "__write64", write64Thunk },
{ "__writeFloat", writeFloatThunk },
{ "__writeDouble", writeDoubleThunk },
{ "__getAppID", getAppIDThunk },
{ "__pause", pauseThunk },
{ "__resume", resumeThunk },
@ -273,10 +303,15 @@ void LuaManager::initializeThunks() {
read16 = function(addr) return GLOBALS.__read16(addr) end,
read32 = function(addr) return GLOBALS.__read32(addr) end,
read64 = function(addr) return GLOBALS.__read64(addr) end,
readFloat = function(addr) return GLOBALS.__readFloat(addr) end,
readDouble = function(addr) return GLOBALS.__readDouble(addr) end,
write8 = function(addr, value) GLOBALS.__write8(addr, value) end,
write16 = function(addr, value) GLOBALS.__write16(addr, value) end,
write32 = function(addr, value) GLOBALS.__write32(addr, value) end,
write64 = function(addr, value) GLOBALS.__write64(addr, value) end,
writeFloat = function(addr, value) GLOBALS.__writeFloat(addr, value) end,
writeDouble = function(addr, value) GLOBALS.__writeDouble(addr, value) end,
getAppID = function()
local ffi = require("ffi")