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, 81 insertions, 0 deletions

diff --git a/platform/wavelet3d/gfx_axib.sv b/platform/wavelet3d/gfx_axib.sv
new file mode 100644
index 0000000..7b3cbdc
--- /dev/null
+++ b/platform/wavelet3d/gfx_axib.sv
@@ -0,0 +1,81 @@
+// AXI4 con burst
+interface gfx_axib;
+
+	import gfx::word;
+
+	logic      awvalid,
+	           awready;
+	logic[7:0] awlen;
+	logic[1:0] awburst;
+	word       awaddr;
+
+	logic wlast;
+	logic wvalid;
+	logic wready;
+	word  wdata;
+
+	logic bvalid;
+	logic bready;
+
+	logic      arvalid,
+	           arready;
+	logic[7:0] arlen;
+	logic[1:0] arburst;
+	word       araddr;
+
+	logic rlast;
+	logic rvalid;
+	logic rready;
+	word  rdata;
+
+	modport m
+	(
+		input  awready,
+		       wready,
+		       bvalid,
+		       arready,
+		       rlast,
+		       rvalid,
+		       rdata,
+
+		output awlen,
+		       awburst,
+		       awvalid,
+		       awaddr,
+		       wlast,
+		       wvalid,
+		       wdata,
+		       bready,
+		       arlen,
+		       arburst,
+		       arvalid,
+		       araddr,
+		       rready
+	);
+
+	modport s
+	(
+		input  awlen,
+		       awburst,
+		       awvalid,
+		       awaddr,
+		       wlast,
+		       wvalid,
+		       wdata,
+		       bready,
+		       arlen,
+		       arburst,
+		       arvalid,
+		       araddr,
+		       rready,
+
+		output awready,
+		       wready,
+		       bvalid,
+		       arready,
+		       rlast,
+		       rvalid,
+		       rdata
+	);
+
+endinterface