Data.SBV.Examples.CodeGeneration.AddSub

Simple code generation example.

Documentation

addSub :: SWord8 -> SWord8 -> (SWord8, SWord8)

Simple function that returns add/sum of args

genAddSub :: IO ()

Generate C code for addSub. This will place the files in a directory called genAddSub, generating the following files:

File: Makefile

 # Makefile for addSub. Automatically generated by SBV. Do not edit!
 
 CC=gcc
 CCFLAGS=-Wall -O3 -DNDEBUG -fomit-frame-pointer
 
 all: addSub_driver
 
 addSub.o: addSub.c addSub.h
 	${CC} ${CCFLAGS} -c $< -o $@
 
 addSub_driver.o: addSub_driver.c
 	${CC} ${CCFLAGS} -c $< -o $@
 
 addSub_driver: addSub.o addSub_driver.o
 	${CC} ${CCFLAGS} $^ -o $@
 
 clean:
 	rm -f *.o
 
 veryclean: clean
 	rm -f addSub_driver

File: addSub.h

 /* Header file for addSub. Automatically generated by SBV. Do not edit! */
 
 #ifndef __addSub__HEADER_INCLUDED__
 #define __addSub__HEADER_INCLUDED__
 
 #include <inttypes.h>
 #include <stdint.h>
 
 /* Unsigned bit-vectors */
 typedef uint8_t  SBool  ;
 typedef uint8_t  SWord8 ;
 typedef uint16_t SWord16;
 typedef uint32_t SWord32;
 typedef uint64_t SWord64;
 
 /* Signed bit-vectors */
 typedef int8_t  SInt8 ;
 typedef int16_t SInt16;
 typedef int32_t SInt32;
 typedef int64_t SInt64;
 
 /* Entry point prototype: */
 void addSub(const SWord8 x, const SWord8 y, SWord8 *sum,
             SWord8 *dif);
 
 #endif /* __addSub__HEADER_INCLUDED__ */

File: addSub.c

 /* File: "addSub.c". Automatically generated by SBV. Do not edit! */
 
 #include <inttypes.h>
 #include <stdint.h>
 #include "addSub.h"
 
 void addSub(const SWord8 x, const SWord8 y, SWord8 *sum,
             SWord8 *dif)
 {
   const SWord8 s0 = x;
   const SWord8 s1 = y;
   const SWord8 s2 = s0 + s1;
   const SWord8 s3 = s0 - s1;
   
   *sum = s2;
   *dif = s3;
 }

File: addSub_driver.c

 /* Example driver program for addSub. */
 /* Automatically generated by SBV. Edit as you see fit! */
 
 #include <inttypes.h>
 #include <stdint.h>
 #include <stdio.h>
 #include "addSub.h"
 
 int main(void)
 {
   SWord8 sum;
   SWord8 dif;
   
   addSub(132, 241, &sum, &dif);
   
   printf("addSub(132, 241, &sum, &dif) ->\n");
   printf("  sum = %"PRIu8"\n", sum);
   printf("  dif = %"PRIu8"\n", dif);
   
   return 0;
 }