function change macro

fx_s2308_double.c

 #include <math.h>
 typedef double fx_s2308;
-
-fx_s2308 sum_fx_s2308_double(fx_s2308 a, fx_s2308 b){
-	fx_s2308 value = ((a / pow(2, 8))+ (b / pow(2, 8)))*pow(2,8);
-	return value;
-}
-fx_s2308 minus_fx_s2308_double(fx_s2308 a, fx_s2308 b) {
-	fx_s2308 value = ((a / pow(2, 8)) - (b / pow(2, 8))) * pow(2, 8);
-	return value;
-}
-fx_s2308 mul_fx_s2308_double(fx_s2308 a, fx_s2308 b) {
-	fx_s2308 value = (a / pow(2, 8)) * b / pow(2, 8) * pow(2, 8);
-	return value;
-}
-fx_s2308 div_fx_s2308_double(fx_s2308 a, fx_s2308 b) {
-	fx_s2308 value = (a / pow(2, 8)) /b /pow(2,8)*pow(2,8);
-	return value;
-}
-
-fx_s2308 sin_fx_s2308_double(fx_s2308 a);
-fx_s2308 sqrt_fx_s2308_double(fx_s2308 a);
-fx_s2308 log_fx_s2308_double(fx_s2308 a);
-fx_s2308 ln_fx_s2308_double(fx_s2308 a);
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fx_s2308_double.h

 #pragma once
 typedef double fx_s2308;
-
-fx_s2308 sum_fx_s2308_double(fx_s2308 a, fx_s2308 b);
-fx_s2308 minus_fx_s2308_double(fx_s2308 a, fx_s2308 b);
-fx_s2308 mul_fx_s2308_double(fx_s2308 a, fx_s2308 b);
-fx_s2308 div_fx_s2308_double(fx_s2308 a, fx_s2308 b);
-
-fx_s2308 sin_fx_s2308_double(fx_s2308 a);
+#define fx_to_double(a) ((double) a/ (256.0))
+#define double_to_fix(a) ((double) a/ (256.0))
+#define fx_add(a,b) (a+b)
+#define fx_sub(a,b) (a-b)
+#define fx_mul(a,b) (double_to_fx(fx_to_double(a)*fx_to_double(b)))
+#define fx_div (a,b) (double_to_fx(fx_to_double(a)/fx_to_double(b)))
\ No newline at end of file
-fx_s2308 sqrt_fx_s2308_double(fx_s2308 a);
-fx_s2308 log_fx_s2308_double(fx_s2308 a);
-fx_s2308 ln_fx_s2308_double(fx_s2308 a);
\ No newline at end of file

test.c

@@ -5,13 +5,7 @@ typedef double fx_s2308;
 int main() {
 	fx_s2308 a = 200;
 	fx_s2308 b = 100;
-	fx_s2308 output=sum_fx_s2308_double(a,b);
-	printf("%lf\n",output);
-	output = minus_fx_s2308_double(a, b);
-	printf("%lf\n", output);
-	output = mul_fx_s2308_double(a, b);
-	printf("%lf\n", output);
-	output = div_fx_s2308_double(a, b);
-	printf("%lf\n", output);
+	fx_s2308 output = fx_add(a, b);
+	printf("%lf",output);
 	return 0;
 }
\ No newline at end of file