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// Copyright 2013-2015, Sinclair R.F., Inc.
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// Display micro controller PC, opcode, and stacks.
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// Display micro controller PC, opcode, and stacks.
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localparam L__TRACE_SIZE = C_PC_WIDTH // pc width
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localparam L__TRACE_SIZE = 1 // s_interrupt
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+ 1 // s_interrupted
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+ C_PC_WIDTH // pc width
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+ 9 // opcode width
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+ 9 // opcode width
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+ C_DATA_PTR_WIDTH // data stack pointer width
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+ C_DATA_PTR_WIDTH // data stack pointer width
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+ 1 // s_N_valid
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+ 1 // s_N_valid
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+ 8 // s_N
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+ 8 // s_N
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+ 1 // s_T_valid
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+ 1 // s_T_valid
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+ C_RETURN_WIDTH // s_R
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+ C_RETURN_WIDTH // s_R
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+ C_RETURN_PTR_WIDTH // return stack pointer width
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+ C_RETURN_PTR_WIDTH // return stack pointer width
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;
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;
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task display_trace;
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task display_trace;
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input [L__TRACE_SIZE-1:0] s_raw;
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input [L__TRACE_SIZE-1:0] s_raw;
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reg s_interrupt;
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reg s_interrupted;
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reg [C_PC_WIDTH-1:0] s_PC;
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reg [C_PC_WIDTH-1:0] s_PC;
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reg [8:0] s_opcode;
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reg [8:0] s_opcode;
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reg [C_DATA_PTR_WIDTH-1:0] s_Np_stack_ptr;
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reg [C_DATA_PTR_WIDTH-1:0] s_Np_stack_ptr;
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reg s_N_valid;
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reg s_N_valid;
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reg [7:0] s_N;
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reg [7:0] s_N;
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reg s_R_valid;
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reg s_R_valid;
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reg [C_RETURN_WIDTH-1:0] s_R;
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reg [C_RETURN_WIDTH-1:0] s_R;
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reg [C_RETURN_PTR_WIDTH-1:0] s_Rw_ptr;
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reg [C_RETURN_PTR_WIDTH-1:0] s_Rw_ptr;
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reg [7*8-1:0] s_opcode_name;
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reg [7*8-1:0] s_opcode_name;
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begin
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begin
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{ s_PC, s_opcode, s_Np_stack_ptr, s_N_valid, s_N, s_T_valid, s_T, s_R_valid, s_R, s_Rw_ptr } = s_raw;
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{ s_interrupt, s_interrupted, s_PC, s_opcode, s_Np_stack_ptr, s_N_valid, s_N, s_T_valid, s_T, s_R_valid, s_R, s_Rw_ptr } = s_raw;
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casez (s_opcode)
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if (s_interrupt)
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s_opcode_name = "int ";
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else if (s_interrupted)
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s_opcode_name = "nop_int";
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else casez (s_opcode)
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9'b00_0000_000 : s_opcode_name = "nop ";
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9'b00_0000_000 : s_opcode_name = "nop ";
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9'b00_0000_001 : s_opcode_name = "<<0 ";
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9'b00_0000_001 : s_opcode_name = "<<0 ";
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9'b00_0000_010 : s_opcode_name = "<<1 ";
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9'b00_0000_010 : s_opcode_name = "<<1 ";
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9'b00_0000_011 : s_opcode_name = "<<msb ";
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9'b00_0000_011 : s_opcode_name = "<<msb ";
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9'b00_0000_100 : s_opcode_name = "0>> ";
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9'b00_0000_100 : s_opcode_name = "0>> ";
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