kern: implement SvcCreateThread, SvcStartThread

2020-07-09 18:54:09 -07:00
parent 9503aae522
commit 7f4c6ae9e7
5 changed files with 95 additions and 6 deletions
--- a/libraries/libmesosphere/source/arch/arm64/kern_k_thread_context.cpp
+++ b/libraries/libmesosphere/source/arch/arm64/kern_k_thread_context.cpp
@@ -173,4 +173,19 @@ namespace ams::kern::arch::arm64 {
        }
    }

+    void KThreadContext::CloneFpuStatus() {
+        u64 pcr, psr;
+        cpu::InstructionMemoryBarrier();
+        if (IsFpuEnabled()) {
+            __asm__ __volatile__("mrs %[pcr], fpcr" : [pcr]"=r"(pcr) :: "memory");
+            __asm__ __volatile__("mrs %[psr], fpsr" : [psr]"=r"(psr) :: "memory");
+        } else {
+            pcr = GetCurrentThread().GetContext().GetFpcr();
+            psr = GetCurrentThread().GetContext().GetFpsr();
+        }
+
+        this->SetFpcr(pcr);
+        this->SetFpsr(psr);
+    }
+
 }