[VM][FMTOWNS][PLANE_VRAM] Add [read|write]_dma_data8w() .

- Make functions "override" .

diff --git a/source/src/vm/fmtowns/planevram.cpp b/source/src/vm/fmtowns/planevram.cpp
index b065243..9c3e8dd 100644 (file)
--- a/source/src/vm/fmtowns/planevram.cpp
+++ b/source/src/vm/fmtowns/planevram.cpp
@@ -203,6 +203,23 @@ __DECL_VECTORIZED_LOOP
        d_vram->write_memory_mapped_io32(x_addr + addr, tmp_r1.d);
 }
 
+uint32_t PLANEVRAM::read_dma_data8w(uint32_t addr, int* wait)
+{
+       uint32_t val = read_memory_mapped_io8(addr); // OK?
+       __LIKELY_IF(wait != NULL) {
+               *wait = 0; // Discard WAIT VALUE(s) for DMA transfer.
+       }
+       return val;
+}
+
+void PLANEVRAM::write_dma_data8w(uint32_t addr, uint32_t data, int* wait)
+{
+       write_memory_mapped_io8(addr, data); // OK?
+       __LIKELY_IF(wait != NULL) {
+               *wait = 0; // Discard WAIT VALUE(s) for DMA transfer.
+       }
+}
+
 #define STATE_VERSION  2
 
 bool PLANEVRAM::process_state(FILEIO* state_fio, bool loading)

diff --git a/source/src/vm/fmtowns/planevram.h b/source/src/vm/fmtowns/planevram.h
index 04afaaf..1ee3fed 100644 (file)
--- a/source/src/vm/fmtowns/planevram.h
+++ b/source/src/vm/fmtowns/planevram.h
@@ -13,7 +13,7 @@ protected:
        DEVICE* d_crtc;
        DEVICE* d_sprite;
        TOWNS_VRAM* d_vram;
-       
+
        uint8_t mix_reg;             // MMIO 000CH:FF80H
        uint8_t r50_readplane;       // MMIO 000CH:FF81H : BIT 7 and 6.
        uint8_t r50_ramsel;          // MMIO 000CH:FF81H : BIT 3 to 0.
@@ -27,16 +27,18 @@ public:
                d_vram = NULL;
        }
 
-       void initialize();
-       void reset();
-       
-       virtual uint32_t __FASTCALL read_memory_mapped_io8(uint32_t addr);
-       virtual void __FASTCALL write_memory_mapped_io8(uint32_t addr, uint32_t data);
+       void initialize() override;
+       void reset() override;
+
+       virtual uint32_t __FASTCALL read_memory_mapped_io8(uint32_t addr) override;
+       virtual void __FASTCALL write_memory_mapped_io8(uint32_t addr, uint32_t data) override;
+       virtual uint32_t __FASTCALL read_dma_data8w(uint32_t addr, int* wait) override;
+       virtual void __FASTCALL write_dma_data8w(uint32_t addr, uint32_t data, int* wait) override;
+
+       virtual uint32_t __FASTCALL read_io8(uint32_t addr) override;
+       virtual void __FASTCALL write_io8(uint32_t addr, uint32_t data) override;
 
-       virtual uint32_t __FASTCALL read_io8(uint32_t addr);
-       virtual void __FASTCALL write_io8(uint32_t addr, uint32_t data);
-       
-       virtual bool process_state(FILEIO* state_fio, bool loading);
+       virtual bool process_state(FILEIO* state_fio, bool loading) override;
 
        // unique functions
        void set_context_crtc(DEVICE* dev)