Diamond75/Panda3DS
1
0
Fork 0
mirror of https://github.com/wheremyfoodat/Panda3DS.git synced 2025-04-20 20:49:12 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use std::span for CPU register-state

Browse source 
Following the trend of #33: `std::span` provides some useful utility
functions like `size_bytes()` and `as_bytes()` and serves as a better
non-owning "chunk of data"-type over just passing around an
`std::array&`.
This commit is contained in:
Wunkolo 2023-06-16 07:24:34 -07:00
parent c6f5d19983
commit fde93381a5
5 changed files with 38 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/core/kernel/threads.cpp
View file

@ -1,8 +1,10 @@
#include <cassert>
#include <cstring>
#include "kernel.hpp"
#include "arm_defs.hpp"
// This header needs to be included because I did stupid forward decl hack so the kernel and CPU can both access each other
#include "kernel.hpp"
// This header needs to be included because I did stupid forward decl hack so the kernel and CPU can both access each
// other
#include "cpu.hpp"
#include "resource_limits.hpp"
@ -20,17 +22,17 @@ void Kernel::switchThread(int newThreadIndex) {
}
// Backup context
std::memcpy(&oldThread.gprs[0], &cpu.regs()[0], 16 * sizeof(u32)); // Backup the 16 GPRs
std::memcpy(&oldThread.fprs[0], &cpu.fprs()[0], 32 * sizeof(u32)); // Backup the 32 FPRs
oldThread.cpsr = cpu.getCPSR(); // Backup CPSR
oldThread.fpscr = cpu.getFPSCR(); // Backup FPSCR
std::memcpy(oldThread.gprs.data(), cpu.regs().data(), cpu.regs().size_bytes()); // Backup the 16 GPRs
std::memcpy(oldThread.fprs.data(), cpu.fprs().data(), cpu.fprs().size_bytes()); // Backup the 32 FPRs
oldThread.cpsr = cpu.getCPSR(); // Backup CPSR
oldThread.fpscr = cpu.getFPSCR(); // Backup FPSCR
// Load new context
std::memcpy(&cpu.regs()[0], &newThread.gprs[0], 16 * sizeof(u32)); // Load 16 GPRs
std::memcpy(&cpu.fprs()[0], &newThread.fprs[0], 32 * sizeof(u32)); // Load 32 FPRs
cpu.setCPSR(newThread.cpsr); // Load CPSR
cpu.setFPSCR(newThread.fpscr); // Load FPSCR
cpu.setTLSBase(newThread.tlsBase); // Load CP15 thread-local-storage pointer register
std::memcpy(cpu.regs().data(), newThread.gprs.data(), cpu.regs().size_bytes()); // Load 16 GPRs
std::memcpy(cpu.fprs().data(), newThread.fprs.data(), cpu.fprs().size_bytes()); // Load 32 FPRs
cpu.setCPSR(newThread.cpsr); // Load CPSR
cpu.setFPSCR(newThread.fpscr); // Load FPSCR
cpu.setTLSBase(newThread.tlsBase); // Load CP15 thread-local-storage pointer register
currentThreadIndex = newThreadIndex;
}

10
src/core/services/service_manager.cpp
View file

@ -1,13 +1,15 @@
#include "services/service_manager.hpp"
#include <map>
#include "ipc.hpp"
#include "kernel.hpp"
ServiceManager::ServiceManager(std::array<u32, 16>& regs, Memory& mem, GPU& gpu, u32& currentPID, Kernel& kernel)
ServiceManager::ServiceManager(std::span<u32, 16> regs, Memory& mem, GPU& gpu, u32& currentPID, Kernel& kernel)
: regs(regs), mem(mem), kernel(kernel), ac(mem), am(mem), boss(mem), act(mem), apt(mem, kernel), cam(mem),
cecd(mem, kernel), cfg(mem), dlp_srvr(mem), dsp(mem, kernel), hid(mem, kernel), frd(mem), fs(mem, kernel),
gsp_gpu(mem, gpu, kernel, currentPID), gsp_lcd(mem), ldr(mem), mic(mem), nfc(mem, kernel), nim(mem), ndm(mem),
ptm(mem), y2r(mem, kernel) {}
cecd(mem, kernel), cfg(mem), dlp_srvr(mem), dsp(mem, kernel), hid(mem, kernel), frd(mem), fs(mem, kernel),
gsp_gpu(mem, gpu, kernel, currentPID), gsp_lcd(mem), ldr(mem), mic(mem), nfc(mem, kernel), nim(mem), ndm(mem),
ptm(mem), y2r(mem, kernel) {}
static constexpr int MAX_NOTIFICATION_COUNT = 16;