set int delay in dma fns

src/app/emu/memory/dma.cc

@@ -160,6 +160,7 @@ void Write(MemoryImpl* memory, uint16_t adr, uint8_t val) {
 
 void DoDma(SNES* snes, MemoryImpl* memory, int cpuCycles) {
   auto channel = memory->dma_channels();
+  snes->cpu().set_int_delay(true);
 
   // align to multiple of 8
   snes->SyncCycles(true, 8);
@@ -228,6 +229,7 @@ void InitHdma(SNES* snes, MemoryImpl* memory, bool do_sync, int cpu_cycles) {
     channel[i].terminated = false;
   }
   if (!hdmaEnabled) return;
+  snes->cpu().set_int_delay(true);
   if (do_sync) snes->SyncCycles(true, 8);
 
   // full transfer overhead
@@ -269,6 +271,7 @@ void DoHdma(SNES* snes, MemoryImpl* memory, bool do_sync, int cycles) {
   }
 
   if (!hdmaActive) return;
+  snes->cpu().set_int_delay(true);
 
   if (do_sync) snes->SyncCycles(true, 8);
 

src/app/emu/memory/memory.h

@@ -289,6 +289,7 @@ class MemoryImpl : public Memory, public Loggable {
 
   // Stack Pointer access.
   uint16_t SP() const override { return SP_; }
+  auto mutable_sp() -> uint16_t& { return SP_; }
   void SetSP(uint16_t value) override { SP_ = value; }
   void ClearMemory() override { std::fill(memory_.begin(), memory_.end(), 0); }