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inc/FIFO1.c

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+// FIFO1.c
+// Runs on any microcontroller
+// Provide functions that implement the Software FiFo Buffer
+// Last Modified: 10/29/2023
+// Student names: change this to your names or look very silly
+// Last modification date: change this to the last modification date or look very silly
+#include <stdint.h>
+
+
+// Declare state variables for FiFo
+//        size, buffer, put and get indexes
+#define FIFO1_SIZE 16  // usable size is 15
+int32_t static PutI; // Index to put new
+int32_t static GetI; // Index of oldest
+int32_t static Fifo1[FIFO1_SIZE];
+
+// *********** Fifo1_Init**********
+// Initializes a software FIFO1 of a
+// fixed size and sets up indexes for
+// put and get operations
+void Fifo1_Init(){
+//Complete this
+  PutI = GetI = 0;
+}
+
+// *********** Fifo1_Put**********
+// Adds an element to the FIFO1
+// Input: data is character to be inserted
+// Output: 1 for success, data properly saved
+//         0 for failure, FIFO1 is full
+uint32_t Fifo1_Put(char data){
+  //Complete this routine
+  if(((PutI+1)&(FIFO1_SIZE-1)) == GetI){
+    return 0;
+  }
+  Fifo1[PutI] = data;
+  PutI = (PutI+1)&(FIFO1_SIZE-1);
+  return 1;
+//   return 0; // replace this line with your solution
+
+}
+
+// *********** Fifo1_Get**********
+// Gets an element from the FIFO1
+// Input: none
+// Output: If the FIFO1 is empty return 0
+//         If the FIFO1 has data, remove it, and return it
+char Fifo1_Get(void){
+  //Complete this routine
+  char data;
+  if(GetI == PutI){
+    return 0;
+  }
+  data = Fifo1[GetI];
+  GetI = (GetI+1)&(FIFO1_SIZE-1);
+  return data;
+//   return 0; // replace this line with your solution
+}
+
+
+