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de0-zx-spectrum/cpu/bus/inc_dec_2bit.v
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2022-03-31 14:13:34 +03:00

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Verilog

// Copyright (C) 1991-2013 Altera Corporation
// Your use of Altera Corporation's design tools, logic functions
// and other software and tools, and its AMPP partner logic
// functions, and any output files from any of the foregoing
// (including device programming or simulation files), and any
// associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License
// Subscription Agreement, Altera MegaCore Function License
// Agreement, or other applicable license agreement, including,
// without limitation, that your use is for the sole purpose of
// programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the
// applicable agreement for further details.
// PROGRAM "Quartus II 64-Bit"
// VERSION "Version 13.0.1 Build 232 06/12/2013 Service Pack 1 SJ Web Edition"
// CREATED "Mon Oct 13 12:26:57 2014"
module inc_dec_2bit(
carry_borrow_in,
d1_in,
d0_in,
dec1_in,
dec0_in,
carry_borrow_out,
d1_out,
d0_out
);
input wire carry_borrow_in;
input wire d1_in;
input wire d0_in;
input wire dec1_in;
input wire dec0_in;
output wire carry_borrow_out;
output wire d1_out;
output wire d0_out;
wire SYNTHESIZED_WIRE_0;
assign SYNTHESIZED_WIRE_0 = dec0_in & carry_borrow_in;
assign carry_borrow_out = dec0_in & dec1_in & carry_borrow_in;
assign d1_out = d1_in ^ SYNTHESIZED_WIRE_0;
assign d0_out = carry_borrow_in ^ d0_in;
endmodule