add_sub_f7c.tdf
资源名称:DS18B20.rar [点击查看]
上传用户:whms_168
上传日期:2022-08-09
资源大小:592k
文件大小:2k
源码类别:
VHDL/FPGA/Verilog
开发平台:
Others
- --lpm_add_sub CARRY_CHAIN="MANUAL" CARRY_CHAIN_LENGTH=48 DEVICE_FAMILY="MAX II" LPM_DIRECTION="SUB" LPM_WIDTH=2 cout dataa datab result
- --VERSION_BEGIN 8.0 cbx_cycloneii 2008:02:23:252825 cbx_lpm_add_sub 2008:03:09:257947 cbx_mgl 2008:04:11:273944 cbx_stratix 2008:02:23:252825 cbx_stratixii 2008:02:23:252825 VERSION_END
- -- Copyright (C) 1991-2008 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.
- --synthesis_resources =
- SUBDESIGN add_sub_f7c
- (
- cout : output;
- dataa[1..0] : input;
- datab[1..0] : input;
- result[1..0] : output;
- )
- VARIABLE
- carry_eqn[1..0] : WIRE;
- cin_wire : WIRE;
- datab_node[1..0] : WIRE;
- sum_eqn[1..0] : WIRE;
- BEGIN
- carry_eqn[] = ( ((dataa[1..1] & datab_node[1..1]) # ((dataa[1..1] # datab_node[1..1]) & carry_eqn[0..0])), ((dataa[0..0] & datab_node[0..0]) # ((dataa[0..0] # datab_node[0..0]) & cin_wire)));
- cin_wire = B"1";
- cout = carry_eqn[1..1];
- datab_node[] = (! datab[]);
- result[] = sum_eqn[];
- sum_eqn[] = ( ((dataa[1..1] $ datab_node[1..1]) $ carry_eqn[0..0]), ((dataa[0..0] $ datab_node[0..0]) $ cin_wire));
- END;
- --VALID FILE