From SUBLEQ compiler for GSQ+ architecture.

sq2gsq.c

#include <stdio.h>
#include <stdlib.h>

typedef union {
    char bytes[4];
    long instruction;
} data_t;

int main(int argc, char ** argv) {
	printf("[SQC] Subleq Compiler for GSQ+ by Krzysztof Szewczyk. All rights reserved.\n");
	if(argc==3) {
		FILE* in = fopen(argv[1],"r"), *out = fopen(argv[2], "wb");
		if(in&&out) {
			data_t compilerData;
			while(!feof(in)) {
				fscanf(in,"%d",&compilerData.instruction);
				fwrite(compilerData.bytes, 1, 4, out);
			}
			fclose(in),fclose(out);
		} else {
			printf("Could not open one of specified files.\n");
		}
	} else {
		printf("Invalid parameter amount.\n");
	}
}