platform/wavelet3d: implement shader cores

This commit contains over a month of intermittent work (I don't have
enough free time to do this the right way)

1 files changed, 35 insertions, 0 deletions

diff --git a/platform/wavelet3d/gfx_wb.sv b/platform/wavelet3d/gfx_wb.sv
new file mode 100644
index 0000000..cc25944
--- /dev/null
+++ b/platform/wavelet3d/gfx_wb.sv
@@ -0,0 +1,35 @@
+interface gfx_wb;
+
+	import gfx::*;
+
+	word lanes[SHADER_LANES];
+	logic ready, scalar, valid, writeback;
+	group_id group;
+	xgpr_num dest;
+
+	modport tx
+	(
+		input  ready,
+
+		output dest,
+		       group,
+		       lanes,
+		       valid,
+		       scalar,
+		       writeback
+	);
+
+	modport rx
+	(
+		input  dest,
+		       group,
+		       lanes,
+		       valid,
+		       scalar,
+		       writeback,
+
+		output ready
+	);
+
+
+endinterface