From 62fcfd66be73925a21c86696a2238cab1d2d5df2 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 16 Mar 2026 11:10:23 +0100
Subject: [PATCH] Mon 16 Mar 11:09:06 CET 2026

---
 src/ops.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/ops.h

diff --git a/src/ops.h b/src/ops.h
new file mode 100644
index 0000000..7947000
--- /dev/null
+++ b/src/ops.h
@@ -0,0 +1,51 @@
+#ifndef _OPS_H
+#define _OPS_H
+/*
+  XP-Code Operations
+  
+  [command][[arguments]]
+*/
+typedef enum {
+  ADD=1,      DIV,          MUL,        SUB,        NEG,        MOD,
+  AND,        OR,           NOT,
+  EQ,         NEQ,          LT,         GT,         LE,         GE,       CMPS,
+  DROPD,      DROPF,
+  PUSHD,      PUSHF,        NTHD,       NTHF,       TOF,        SETF,     SETSP,    INCSP,
+  INCHAR,     INNUMBER,     INSTRING,   INARRAY,
+  OUTCHAR,    OUTNUMBER,    OUTSTRING,  OUTARRAY,
+  STRING,
+  JMP,        JZ,           JNZ,        TESTRANGE,  LOOP,
+  READ,       WRITE,        READS,      WRITES,     DATA,       EVENT,    ERR,      EMIT,
+  INTERRUPT,  RESUME,       CALL,       CCALL,      PROC,       FUNC,     RETURN,   FORK,   YIELD,
+#if HAS_LOCK > 0
+  LOCK,       UNLOCK,
+#endif
+  END,        ENV
+} ops_t;
+
+/*
+  Variable XP operand sizes
+*/
+extern const index_t ops_s[];
+
+typedef unsigned char      opcmd_t;   // code only
+
+typedef struct {
+  index_t length;       // real length in bytes
+  char    data;         // first character, dynamic memory
+} string_t;
+
+typedef struct __attribute__((packed)) {
+  opcmd_t command ;
+  union {
+    index_t   ix  ;
+    address_t ax  ;
+    number_t  nx  ;
+    string_t  sx  ;
+  };
+} op_t;
+
+#define OPT(M,addr)   ((op_t*)&M->data[addr])
+
+#endif
+