bit of organisation

src/ir/instruction.c

@@ -0,0 +1,34 @@
+#include "instruction.h"
+
+char* gravityOpcodeToCStr(GravityOpcode opcode) {
+    switch (opcode) {
+        case GravityOpcodeAlloc: return "alloc";
+        case GravityOpcodeStore: return "store";
+        case GravityOpcodeLoad: return "load";
+        case GravityOpcodeRet: return "ret";
+        case GravityOpcodeJumpIf: return "jumpif";
+        case GravityOpcodeJump: return "jump";
+        case GravityOpcodeIntConst: return "iconst";
+        default: return "fixme";
+    }
+}
+
+char* gravityInstructionToCStr(GravityInstruction inst) {
+    StringBuffer buff;
+    initStringBuff(&buff);
+
+    if (inst.result != NULL) {
+        sbAppend(&buff, "%s = ", gravityValueToCStr(inst.result));
+    }
+
+    sbAppend(&buff, "%s ", gravityOpcodeToCStr(inst.opcode));
+    for (unsigned int i = 0; i < inst.numOperands; i++) {
+        if (i < inst.numOperands - 1) {
+            sbAppend(&buff, "%s, ", gravityValueToCStr(inst.operands[i]));
+        } else {
+            sbAppend(&buff, "%s", gravityValueToCStr(inst.operands[i]));
+        }
+    }
+
+    return buff.data;
+}