home *** CD-ROM | disk | FTP | other *** search
PALASM Design Description | 1991-02-27 | 1.8 KB | 57 lines |
- ;PALASM Design Description
-
- ;---------------------------------- Declaration Segment ------------
- TITLE 4 Bit Full Adder (Ripple Carry)
- PATTERN EXADD1.PDS
- REVISION A
- AUTHOR George Landers
- COMPANY Advanced Micro Devices, Inc.
- DATE 06/05/90
-
- CHIP EXADD1 MACH110
-
- ;---------------------------------- PIN Declarations ---------------
- PIN ? VCC ;
- PIN ? GND ;
- PIN ? C0 ;
- PIN ? A1 ;
- PIN ? A2 ;
- PIN ? A3 ;
- PIN ? A4 ;
- PIN ? B1 ;
- PIN ? B2 ;
- PIN ? B3 ;
- PIN ? B4 ;
- PIN ? S1 COMBINATORIAL ;
- PIN ? S2 COMBINATORIAL ;
- PIN ? S3 COMBINATORIAL ;
- PIN ? S4 COMBINATORIAL ;
- NODE ? C1 COMBINATORIAL ;
- NODE ? C2 COMBINATORIAL ;
- NODE ? C3 COMBINATORIAL ;
- PIN ? C4 COMBINATORIAL ;
-
- ;----------------------------------- Boolean Equation Segment ------
- EQUATIONS
-
- S1 = C0 :+: A1 :+: B1
-
- C1 = (A1 * B1) + (A1 * C0) + (B1 * C0)
-
- S2 = C1 :+: A2 :+: B2
-
- C2 = (A2 * B2) + (A2 * C1) + (B2 * C1)
-
- S3 = C2 :+: A3 :+: B3
-
- C3 = (A3 * B3) + (A3 * C2) + (B3 * C2)
-
- S4 = C3 :+: A4 :+: B4
-
- C4 = (A4 * B4) + (A4 * C3) + (B4 * C3)
-
- ;----------------------------------- Simulation Segment ------------
- SIMULATION
-
- ;-------------------------------------------------------------------