57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Stack.h
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*
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* Interface to the stack system
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*/
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#ifndef _stack_h
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#define _stack_h
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//String support
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//-----------------------------
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#define MAXSTRLEN 255 //Max len of a single string
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#define MAXSTACKLEN 6000
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/* Initialise the stack */
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extern BOOL stackInitialise(void);
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/* Shutdown the stack */
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extern void stackShutDown(void);
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/* Push a value onto the stack */
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extern BOOL stackPush(INTERP_VAL *psVal);
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/* Pop a value off the stack */
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extern BOOL stackPop(INTERP_VAL *psVal);
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/* Pop a value off the stack, checking that the type matches what is passed in */
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extern BOOL stackPopType(INTERP_VAL *psVal);
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/* Look at a value on the stack without removing it.
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* index is how far down the stack to look.
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* Index 0 is the top entry on the stack.
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*/
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extern BOOL stackPeek(INTERP_VAL *psVal, UDWORD index);
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/* Print the top value on the stack */
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extern void stackPrintTop(void);
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/* Check if the stack is empty */
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extern BOOL stackEmpty(void);
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/* Do binary operations on the top of the stack
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* This effectively pops two values and pushes the result
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*/
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extern BOOL stackBinaryOp(OPCODE opcode);
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/* Perform a unary operation on the top of the stack
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* This effectively pops a value and pushes the result
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*/
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extern BOOL stackUnaryOp(OPCODE opcode);
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/* Reset the stack to an empty state */
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extern void stackReset(void);
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#endif
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