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32 lines
1004 B
Plaintext
32 lines
1004 B
Plaintext
/*********************************************
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* stackx - Extended Stack Functions for C02 *
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*********************************************/
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/* Duplicate Top Stack Entry *
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* Returns: A=Number of bytes retrieved *
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* 0 if none or overflow */
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char stkdup();
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/* Duplicate Entry Under Top of Stack *
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* Returns: A=Number of bytes retrieved *
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* 0 if none or overflow */
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char stkovr();
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/* Push String onto Stack *
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* Args: &m - String to push *
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* Returns: A=$FF if bytes were written *
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* $00 if block was overflowed */
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char stkstr();
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/* Swap Top and Second Stack Entries *
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* Returns: A=Number of bytes in new top *
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* 0 if none or overflow */
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char stkswp();
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/* Copy Top Stack Entry into Array *
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* Args: n - Number of bytes to write *
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* &m - Array to pop contents into *
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* Returns: A=Number of bytes retrieved *
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* 0 if none */
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char stktop();
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