From 82dec45fd786831f791b17b84aedb4d99b5ca25d Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Sun, 16 Feb 2025 20:55:24 +0200
Subject: add initial risc-v -> tta translation block

---
 tb/sched_tb.sv | 84 ++++++++++------------------------------------------------
 1 file changed, 14 insertions(+), 70 deletions(-)

(limited to 'tb/sched_tb.sv')

diff --git a/tb/sched_tb.sv b/tb/sched_tb.sv
index 8db66b3..036464e 100644
--- a/tb/sched_tb.sv
+++ b/tb/sched_tb.sv
@@ -2,62 +2,11 @@
 
 module sched_tb;
 
-typedef enum logic [7:0] {
-	NOP = `NOP,
-	R0,
-	R1,
-	R2,
-	R3,
-	R4,
-	R5,
-	R6,
-	R7,
-	R8,
-	R9,
-	R10,
-	R11,
-	R12,
-	R13,
-	R14,
-	R15,
-	R16,
-	R17,
-	R18,
-	R19,
-	R20,
-	R21,
-	R22,
-	R23,
-	R24,
-	R25,
-	R26,
-	R27,
-	R28,
-	R29,
-	R30,
-	R31,
-
-	ALU0,
-	ALU1
-} port_t;
-
-typedef logic [19:0] op_t;
-
-typedef struct packed {
-	port_t src;
-	port_t dst;
-} mov_t;
-
-typedef struct packed {
-	mov_t[1:0] in;
-	mov_t out;
-	op_t op;
-} insn_t;
-
 typedef struct packed {
 	mov_t[1:0] in;
 	mov_t[0:0] out;
 	op_t op;
+	imm_t imm;
 } slot_t;
 
 slot_t[1:0] prev_slots;
@@ -69,9 +18,6 @@ sched #(
 	.QUE_DEPTH(3),
 	.SLOT_COUNT(2),
 	.SLOT_DEPTH(1),
-	.port_t(port_t),
-	.mov_t(mov_t),
-	.insn_t(insn_t),
 	.slot_t(slot_t)
 ) sched (
 	.que_i(prev_que),
@@ -80,16 +26,14 @@ sched #(
 	.slots_o(next_slots)
 );
 
-`define assert(signal, value) \
-	if (signal !== value) begin \
-		$error("%m: signal != value"); \
-	end
+slot_t[1:0] first_check = {76'b0,
+	{{`rn(2), `alu(0)}, {`rn(3), `alu(0)}, {`alu(0), `rn(1)}, 8'h1, 20'h123}
+	};
 
-slot_t[1:0] first_check = {68'b0, {R2, ALU0}, {R3, ALU0}, {ALU0, R1}, 20'h123};
 slot_t[1:0] second_check = {
-		{{R2, ALU0}, {R1, ALU0}, {ALU0, R5}, 20'h789},
-		{{R2, ALU1}, {R1, ALU1}, {ALU1, R4}, 20'h456}
-		};
+	{{`rn(2), `alu(0)}, {`rn(1), `alu(0)}, {`alu(0), `rn(5)}, 8'h3, 20'h789},
+	{{`rn(2), `alu(1)}, {`rn(1), `alu(1)}, {`alu(1), `rn(4)}, 8'h2, 20'h456}
+	};
 
 initial begin
 	$dumpfile("sched_tb.vcd");
@@ -105,12 +49,12 @@ initial begin
 	* add r4, r2, r1 add r5, r2, r1
 	*/
 	prev_que = {
-		/* src2, src1, out, op, apparently. Have to get used to
-		* systemverilog's way of laying out bits, huh. */
-		{{R2, ALU0}, {R1, ALU0}, {ALU0, R5}, 20'h789},
-		{{R2, ALU1}, {R1, ALU1}, {ALU1, R4}, 20'h456},
-		{{R2, ALU0}, {R3, ALU0}, {ALU0, R1}, 20'h123}
-		/* also, 'reverse' order, first instruction at bottom */
+	/* src2, src1, out, op, apparently. Have to get used to
+	* systemverilog's way of laying out bits, huh. */
+	{{`rn(2), `alu(0)}, {`rn(1), `alu(0)}, {`alu(0), `rn(5)}, 8'h3, 20'h789},
+	{{`rn(2), `alu(1)}, {`rn(1), `alu(1)}, {`alu(1), `rn(4)}, 8'h2, 20'h456},
+	{{`rn(2), `alu(0)}, {`rn(3), `alu(0)}, {`alu(0), `rn(1)}, 8'h1, 20'h123}
+	/* also, 'reverse' order, first instruction at bottom */
 	};
 
 	prev_slots = '0;
@@ -118,7 +62,7 @@ initial begin
 	#10
 
 	assert (next_slots == first_check)
-	else $error("\nwanted:\t%h", first_check, "\ngot:%h\t", next_slots);
+	else $error("\nwanted:\t%h", first_check, "\ngot:\t%h", next_slots);
 
 	/* pretend all operations finished */
 	prev_slots = '0;
-- 
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