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Add svcOutputDebugString, booting our first test ROM

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wheremyfoodat 2022-09-18 03:55:40 +03:00
parent 91356f1de9
commit 36453629d5
3 changed files with 14 additions and 1 deletions
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1
include/kernel/kernel.hpp
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@ -71,6 +71,7 @@ class Kernel {
void sendSyncRequest();
void svcCloseHandle();
void connectToPort();
void outputDebugString();
public:
Kernel(std::array<u32, 16>& regs, Memory& mem) : regs(regs), mem(mem), handleCounter(0), serviceManager(regs, mem) {

12
src/core/kernel/kernel.cpp
View file

@ -12,6 +12,7 @@ void Kernel::serviceSVC(u32 svc) {
case 0x38: getResourceLimit(); break;
case 0x39: getResourceLimitLimitValues(); break;
case 0x3A: getResourceLimitCurrentValues(); break;
case 0x3D: outputDebugString(); break;
default: Helpers::panic("Unimplemented svc: %X @ %08X", svc, regs[15]); break;
}
}
@ -87,6 +88,17 @@ void Kernel::svcCloseHandle() {
regs[0] = SVCResult::Success;
}
// OutputDebugString(const char* str, int size)
// TODO: Does this actually write an error code in r0?
void Kernel::outputDebugString() {
const u32 pointer = regs[0];
const u32 size = regs[1];
std::string message = mem.readString(pointer, size);
printf("OutputDebugString(message = \"%s\")\n", message.c_str());
regs[0] = SVCResult::Success;
}
std::string Kernel::getProcessName(u32 pid) {
if (pid == KernelHandles::CurrentProcess) {
return "current";

2
src/main.cpp
View file

@ -7,7 +7,7 @@ int main (int argc, char *argv[]) {
Helpers::panic("Failed to initialize OpenGL");
}
auto elfPath = std::filesystem::current_path() / (argc > 1 ? argv[1] : "simple_tri.elf");
auto elfPath = std::filesystem::current_path() / (argc > 1 ? argv[1] : "OutputDebugString.elf");
if (!emu.loadELF(elfPath)) {
Helpers::panic("Failed to load ELF file: %s", elfPath.c_str());
}