rtl/gfx: implement matrix transpose

1 files changed, 17 insertions, 0 deletions

diff --git a/rtl/gfx/transpose.sv b/rtl/gfx/transpose.sv
new file mode 100644
index 0000000..1df68d5
--- /dev/null
+++ b/rtl/gfx/transpose.sv
@@ -0,0 +1,17 @@
+`include "gfx/gfx_defs.sv"
+
+module transpose
+(
+	input  mat4 in,
+	output mat4 out
+);
+
+	integer i, j;
+
+	// Esto no tiene costo en hardware, es un renombramiento de señales
+	always_comb
+		for (i = 0; i < `VECS_PER_MAT; ++i)
+			for (j = 0; j < `FLOATS_PER_VEC; ++j)
+				out[i][j] = in[j][i];
+
+endmodule