2/7 Fixed-Point math

code/duffle/dsl.h

@@ -76,7 +76,7 @@ enum { false = 0, true  = 1, true_overflow, };
 #define alignof                             _Alignof
 #define byte_pad(amount, ...)               B1 glue(_PAD_, __VA_ARGS__) [amount]
 #define cast(type, data)                    ((type)(data))
-#define pcast(type, data)                   * cast(type*, & (data))
+#define pcast(type, data)                   (cast(type*, & (data)) [0])
 #define nullptr                             cast(void*, 0)
 #define size_of(data)                       cast(U4, sizeof(data))
 

code/duffle/gp.h

@@ -33,12 +33,20 @@ typedef def_enum(U4, gp_Commands) {
 	gcmd_SetVramSize             = 0x09,
 };
 
-#define gpio_port0 0x1810
-#define gpio_port1 0x1814
+enum {
+	gpio_port_0 = 0x1810,
+	gpio_port_1 = 0x1814,
 
-#define gcmd_offset 24
+	gmcd_offset = 24,
 
-#define gp_Reset (gcmd_Reset << gcmd_offset)
+	gp_Reset = (gcmd_Reset << gmcd_offset),
+};
+// #define gpio_port0 0x1810
+// #define gpio_port1 0x1814
+
+// #define gcmd_offset 24
+
+// #define gp_Reset (gcmd_Reset << gcmd_offset)
 
 #define gp_DisplayEnabled  (gcmd_DisplayEnable << gcmd_offset | 0x0)
 #define gp_DisplayDisabled (gcmd_DisplayEnable << gcmd_offset | 0x1)

code/duffle/math.h

@@ -12,6 +12,7 @@ typedef def_farray(S2, 2);
 typedef def_farray(S2, 3);
 typedef def_farray(S4, 2);
 typedef def_farray(S4, 3);
+typedef def_farray(S4, 4);
 typedef S2 A3A3_S2[3][3];
 
 typedef def_struct(Extent2_S2) { S2 width; S2 height; };
@@ -33,7 +34,17 @@ typedef def_struct(Rect_S4) { S4 x; S4 y; S4 width; S4 height; };
 typedef def_struct(M3_S2) { A3A3_S2 m; A3_S4 t; };
 
 #define v2s2(x,y)     (V2_S2){x,y}
-#define v3s2(x,y,z)   (V3_S2){x,y,z}
-#define v3s4(x,y,z)   (V3_S4){x,y,z}
+#define v3s2(x,y,z)   (V3_S2){x,y,z,0}
+#define v3s4(x,y,z)   (V3_S4){x,y,z,0}
 #define v4s2(x,y,z,w) (V4_S2){x,y,z,w}
 #define v4s4(x,y,z,w) (V4_S4){x,y,z,w}
+
+FI_ void add_a3s4(A3_S4_R out_a, A3_S4 b) {
+	(out_a[0])[0] += b[0];
+	(out_a[0])[1] += b[1];
+	(out_a[0])[2] += b[2];
+}
+
+FI_ void add_v3s4(V3_S4_R out_a, V3_S4 b) { 
+	add_a3s4(pcast(A3_S4_R, out_a), pcast(A3_S4, b)); 
+}

code/duffle/memory.h

@@ -43,6 +43,7 @@ B4    memory_zero            (void* dest, U4 length);
 #define sll_queue_push_n(f, l, n, next) sll_queue_push_nz(0, f, l, n, next)
 
 #pragma region Allocator Interface
+#if 0
 typedef def_enum(U4, AllocatorOp) {
 	AllocatorOp_Alloc_NoZero = 0, // If Alloc exist, so must No_Zero
 	AllocatorOp_Alloc,
@@ -137,4 +138,5 @@ Slice_B1 mem__shrink(AllocatorInfo ainfo, Slice_B1 mem, U4 size, Opts_mem_shrink
 
 #define alloc_type(ainfo, type, ...)       (type*)             mem__alloc(ainfo, size_of(type),        opt_args(Opts_mem_alloc, __VA_ARGS__)).ptr
 #define alloc_slice(ainfo, type, num, ...) (tmpl(Slice,type)){ mem__alloc(ainfo, size_of(type) * num,  opt_args(Opts_mem_alloc, __VA_ARGS__)).ptr, num }
+#endif
 #pragma endregion Allocator Interface