getting closer and closer to the xfb copy loop in panda

2026-05-13 11:27:28 +02:00
parent fc26f75118
commit 9c3a6789f6
9 changed files with 319 additions and 82 deletions
@@ -2,25 +2,82 @@
 #include <ircolib/types.hpp>

 namespace weee::core {
-union DCR {
-    struct {
-        unsigned e : 1;
-        unsigned r : 1;
-        unsigned i : 1;
-        unsigned d : 1;
-        unsigned le0 : 2;
-        unsigned le1 : 2;
-        unsigned fmt : 2;
-        unsigned : 6;
-    };
-
-    ircolib::u16 raw;
-};
+struct mem;

 struct video_interface {
-    void write(ircolib::u32, ircolib::u16);
+    video_interface(mem &);
+    void write16(ircolib::u32, ircolib::u16);
+    void write32(ircolib::u32, ircolib::u32);

-    private:
-    DCR dcr{};
+    union DCR {
+        struct {
+            unsigned e : 1;
+            unsigned r : 1;
+            unsigned i : 1;
+            unsigned d : 1;
+            unsigned le0 : 2;
+            unsigned le1 : 2;
+            unsigned fmt : 2;
+            unsigned : 6;
+        };
+
+        ircolib::u16 raw;
+    } dcr;
+
+    union HTR0 {
+        struct {
+            unsigned hlw : 9;
+            unsigned : 7;
+            unsigned hce : 7;
+            unsigned : 1;
+            unsigned hcs : 7;
+            unsigned : 1;
+        };
+
+        ircolib::u32 raw;
+    } htr0;
+
+    union HTR1 {
+        struct {
+            unsigned hsy : 7;
+            unsigned hbe : 10;
+            unsigned hbs : 10;
+            unsigned : 5;
+        };
+
+        ircolib::u32 raw;
+    } htr1;
+
+    union VTR {
+        struct {
+            unsigned equ : 4;
+            unsigned acv : 10;
+            unsigned : 2;
+        };
+
+        ircolib::u16 raw;
+    } vtr;
+
+    union VTO {
+        struct {
+            unsigned prb : 10;
+            unsigned : 6;
+            unsigned psb : 10;
+            unsigned : 6;
+        };
+
+        ircolib::u32 raw;
+    } vto, vte;
+
+    union BBI {
+        struct {
+            unsigned bs1 : 5;
+            unsigned be1 : 11;
+            unsigned bs3 : 5;
+            unsigned be3 : 11;
+        };
+
+        ircolib::u32 raw;
+    } bbei, bboi;
 };
 } // namespace weee::core