1 /*****************************************************************************/
5 /* Code segment entry */
9 /* (C) 2001 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
52 /*****************************************************************************/
54 /*****************************************************************************/
59 #define CEF_USERMARK 0x0001U /* Generic mark by user functions */
60 #define CEF_NUMARG 0x0002U /* Insn has numerical argument */
62 /* Code entry structure */
63 typedef struct CodeEntry CodeEntry;
65 opc_t OPC; /* Opcode */
66 am_t AM; /* Adressing mode */
67 unsigned char Size; /* Estimated size */
68 unsigned char Hints; /* Hints for this entry */
69 char* Arg; /* Argument as string */
70 unsigned Num; /* Numeric argument */
71 unsigned short Flags; /* Flags */
72 unsigned char Info; /* Additional code info */
73 unsigned char Use; /* Registers used */
74 unsigned char Chg; /* Registers changed/destroyed */
75 CodeLabel* JumpTo; /* Jump label */
76 Collection Labels; /* Labels for this instruction */
81 /*****************************************************************************/
83 /*****************************************************************************/
87 CodeEntry* NewCodeEntry (const OPCDesc* D, am_t AM, const char* Arg, CodeLabel* JumpTo);
88 /* Create a new code entry, initialize and return it */
90 void FreeCodeEntry (CodeEntry* E);
91 /* Free the given code entry */
93 int CodeEntriesAreEqual (const CodeEntry* E1, const CodeEntry* E2);
94 /* Check if both code entries are equal */
96 void AttachCodeLabel (CodeEntry* E, CodeLabel* L);
97 /* Attach the label to the entry */
99 int CodeEntryHasLabel (const CodeEntry* E);
100 /* Check if the given code entry has labels attached */
102 unsigned GetCodeLabelCount (const CodeEntry* E);
103 /* Get the number of labels attached to this entry */
105 CodeLabel* GetCodeLabel (CodeEntry* E, unsigned Index);
106 /* Get a label from this code entry */
108 void MoveCodeLabel (CodeLabel* L, CodeEntry* E);
109 /* Move the code label L from it's former owner to the code entry E. */
111 int CodeEntryHasMark (const CodeEntry* E);
112 /* Return true if the given code entry has the CEF_USERMARK flag set */
114 void CodeEntrySetMark (CodeEntry* E);
115 /* Set the CEF_USERMARK flag for the given entry */
117 void CodeEntryResetMark (CodeEntry* E);
118 /* Reset the CEF_USERMARK flag for the given entry */
120 void CodeEntrySetArg (CodeEntry* E, const char* Arg);
121 /* Set a new argument for the given code entry. An old string is deleted. */
123 void OutputCodeEntry (const CodeEntry* E, FILE* F);
124 /* Output the code entry to a file */
128 /* End of codeent.h */