Fix prefix operators

src/execute.c

@@ -16,6 +16,7 @@
 #define NAME stack->program[stack->program_counter].name
 #define DATA stack->program[stack->program_counter].data
 #define ARG stack->program[stack->program_counter].arg
+#define INST stack->program[stack->program_counter]
 
 typedef enum
 {
@@ -43,16 +44,14 @@ static void prefix_operator(Stack *stack, char op)
     case PDRAIN:
         NAME++;
 
-        stack_push(stack, DATA);
+        INST.isdrained = true;
-
-        DATA = 0;
 
         break;
 
     case PPIPE:
         NAME++;
 
-        DATA = stack_pop(stack);
+        INST.ispiped = true;
 
         break;
     }
@@ -148,6 +147,15 @@ void execute(Stack *stack, Stack *originstack, char *modname)
 #endif
         prefix_operator(stack, NAME[0]);
 
+        if (INST.ispiped)
+            DATA = stack_pop(stack);
+
+        if (INST.isdrained)
+        {
+            stack_push(stack, DATA);
+            DATA = 0;
+        }
+
         if (NAME[0] == '#' || NAME[0] == '$')
             NAME++;
 
@@ -601,7 +609,7 @@ void execute(Stack *stack, Stack *originstack, char *modname)
             if (ARG[0] == '@' && ARG[1] == ' ')
                 kms(stack, "ATTEMPTED TO INSERT A LABEL");
 
-            stack->program[stack->program_size++] = (Instruction){ARG, "\n", DATA};
+            stack->program[stack->program_size++] = (Instruction){ARG, "\n", DATA, false, false};
 
             continue;
         }

src/stack.c

@@ -99,7 +99,7 @@ void parse_and_process(Stack *stack, FILE *file)
             inst.arg = "\n";
         char *duppedarg = strdup(inst.arg);
 
-        stack->program[stack->program_size++] = (Instruction){duppedname, duppedarg, inst.data};
+        stack->program[stack->program_size++] = (Instruction){duppedname, duppedarg, inst.data, false, false};
     }
 }
 

src/stack.h

@@ -1,4 +1,5 @@
 #pragma once
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 
@@ -9,6 +10,8 @@ typedef struct
     char *name;
     char *arg;
     uint16_t data;
+    bool ispiped;
+    bool isdrained;
 } Instruction;
 
 typedef struct