1 files changed, 49 insertions, 0 deletions
diff --git a/platform/wavelet3d/gfx_pkg.sv b/platform/wavelet3d/gfx_pkg.sv
new file mode 100644
index 0000000..27c1117
--- /dev/null
+++ b/platform/wavelet3d/gfx_pkg.sv
@@ -0,0 +1,49 @@
+package gfx;
+
+	typedef logic[31:0] float_word;
+	typedef logic[7:0]  float_exp;
+
+	typedef logic[$bits(float_word) - $bits(float_exp) - 2:0] float_mant;
+	typedef logic[$bits(float_mant):0] float_mant_full; // Incluye '1.' explícito
+
+	localparam float_exp FLOAT_EXP_BIAS = (1 << ($bits(float_exp) - 1)) - 1;
+	localparam float_exp FLOAT_EXP_MAX  = {($bits(float_exp)){1'b1}};
+
+	function float_mant_full full_mant(float_mant in);
+		full_mant = {1'b1, in};
+	endfunction
+
+	function float_mant implicit_mant(float_mant_full in);
+		assert (in[$bits(in) - 1]);
+		implicit_mant = in[$bits(in) - 2:0];
+	endfunction
+
+	typedef struct packed
+	{
+		logic      sign;
+		float_exp  exp;
+		float_mant mant;
+	} float;
+
+	/* Explicación de guard, round, sticky:
+	 * https://drilian.com/2023/01/10/floating-point-numbers-and-rounding/
+	 */
+	typedef struct packed
+	{
+		float normal;
+		logic slow,
+		      zero,
+		      guard,
+		      round,
+		      sticky;
+	} float_round;
+
+	typedef struct packed
+	{
+		float val;
+		logic exp_max,
+		      exp_min,
+		      mant_zero;
+	} float_special;
+
+endpackage