Jan Klhůfek 56c86c13ca
New multipliers (#13)
* #10 CGP Circuits as inputs (#11)

* CGP Circuits as inputs

* #10 support of signed output in general circuit

* input as output works

* output connected to input (c)

* automated verilog testing

* output rename

* Implemented CSA and Wallace tree multiplier composing of CSAs. Also did some code cleanup.

* Typos fix and code cleanup.

* Added new (approximate) multiplier architectures and did some minor changes regarding sign extension for c output formats.

* Updated automated testing scripts.

* Small bugfix in python code generation (I initially thought this line is useless).

* Updated generated circuits folder.

Co-authored-by: Vojta Mrazek <mrazek@fit.vutbr.cz>
2022-04-17 16:00:00 +02:00

48 lines
2.4 KiB
C

#include <stdio.h>
#include <stdint.h>
uint64_t u_pg_rca4(uint64_t a, uint64_t b){
uint8_t u_pg_rca4_out = 0;
uint8_t u_pg_rca4_pg_fa0_xor0 = 0;
uint8_t u_pg_rca4_pg_fa0_and0 = 0;
uint8_t u_pg_rca4_pg_fa1_xor0 = 0;
uint8_t u_pg_rca4_pg_fa1_and0 = 0;
uint8_t u_pg_rca4_pg_fa1_xor1 = 0;
uint8_t u_pg_rca4_and1 = 0;
uint8_t u_pg_rca4_or1 = 0;
uint8_t u_pg_rca4_pg_fa2_xor0 = 0;
uint8_t u_pg_rca4_pg_fa2_and0 = 0;
uint8_t u_pg_rca4_pg_fa2_xor1 = 0;
uint8_t u_pg_rca4_and2 = 0;
uint8_t u_pg_rca4_or2 = 0;
uint8_t u_pg_rca4_pg_fa3_xor0 = 0;
uint8_t u_pg_rca4_pg_fa3_and0 = 0;
uint8_t u_pg_rca4_pg_fa3_xor1 = 0;
uint8_t u_pg_rca4_and3 = 0;
uint8_t u_pg_rca4_or3 = 0;
u_pg_rca4_pg_fa0_xor0 = ((a >> 0) & 0x01) ^ ((b >> 0) & 0x01);
u_pg_rca4_pg_fa0_and0 = ((a >> 0) & 0x01) & ((b >> 0) & 0x01);
u_pg_rca4_pg_fa1_xor0 = ((a >> 1) & 0x01) ^ ((b >> 1) & 0x01);
u_pg_rca4_pg_fa1_and0 = ((a >> 1) & 0x01) & ((b >> 1) & 0x01);
u_pg_rca4_pg_fa1_xor1 = ((u_pg_rca4_pg_fa1_xor0 >> 0) & 0x01) ^ ((u_pg_rca4_pg_fa0_and0 >> 0) & 0x01);
u_pg_rca4_and1 = ((u_pg_rca4_pg_fa0_and0 >> 0) & 0x01) & ((u_pg_rca4_pg_fa1_xor0 >> 0) & 0x01);
u_pg_rca4_or1 = ((u_pg_rca4_and1 >> 0) & 0x01) | ((u_pg_rca4_pg_fa1_and0 >> 0) & 0x01);
u_pg_rca4_pg_fa2_xor0 = ((a >> 2) & 0x01) ^ ((b >> 2) & 0x01);
u_pg_rca4_pg_fa2_and0 = ((a >> 2) & 0x01) & ((b >> 2) & 0x01);
u_pg_rca4_pg_fa2_xor1 = ((u_pg_rca4_pg_fa2_xor0 >> 0) & 0x01) ^ ((u_pg_rca4_or1 >> 0) & 0x01);
u_pg_rca4_and2 = ((u_pg_rca4_or1 >> 0) & 0x01) & ((u_pg_rca4_pg_fa2_xor0 >> 0) & 0x01);
u_pg_rca4_or2 = ((u_pg_rca4_and2 >> 0) & 0x01) | ((u_pg_rca4_pg_fa2_and0 >> 0) & 0x01);
u_pg_rca4_pg_fa3_xor0 = ((a >> 3) & 0x01) ^ ((b >> 3) & 0x01);
u_pg_rca4_pg_fa3_and0 = ((a >> 3) & 0x01) & ((b >> 3) & 0x01);
u_pg_rca4_pg_fa3_xor1 = ((u_pg_rca4_pg_fa3_xor0 >> 0) & 0x01) ^ ((u_pg_rca4_or2 >> 0) & 0x01);
u_pg_rca4_and3 = ((u_pg_rca4_or2 >> 0) & 0x01) & ((u_pg_rca4_pg_fa3_xor0 >> 0) & 0x01);
u_pg_rca4_or3 = ((u_pg_rca4_and3 >> 0) & 0x01) | ((u_pg_rca4_pg_fa3_and0 >> 0) & 0x01);
u_pg_rca4_out |= ((u_pg_rca4_pg_fa0_xor0 >> 0) & 0x01ull) << 0;
u_pg_rca4_out |= ((u_pg_rca4_pg_fa1_xor1 >> 0) & 0x01ull) << 1;
u_pg_rca4_out |= ((u_pg_rca4_pg_fa2_xor1 >> 0) & 0x01ull) << 2;
u_pg_rca4_out |= ((u_pg_rca4_pg_fa3_xor1 >> 0) & 0x01ull) << 3;
u_pg_rca4_out |= ((u_pg_rca4_or3 >> 0) & 0x01ull) << 4;
return u_pg_rca4_out;
}