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43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
/*********************************************************
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* vector - 6502 Interrupt Vector Manipulation Functions *
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*********************************************************/
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/* Get Maskable Interrupt Address *
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* Returns: $00 If Address can be *
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* modified, otherwise $FF *
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* Address MSB *
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* Address LSB */
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char getirq();
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/* Get Non-Maskable Interrupt Address *
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* Returns: $00 If Address can be *
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* modified, otherwise $FF *
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* Address MSB *
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* Address LSB */
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char getnmi();
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/* Get "Reset" Interrupt Address *
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* Returns: $00 If Address can be *
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* modified, otherwise $FF *
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* Address MSB *
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* Address LSB */
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char getrst();
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/* Set Maskable Interrupt Address */
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* Args: &d - New Interrupt Address *
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* Returns: $00 If Successful, *
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* otherwise $FF */
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char setirq();
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/* Set Non-Maskable Interrupt Address */
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* Args: &d - New Interrupt Address *
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* Returns: $00 If Successful, *
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* otherwise $FF */
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char setnmi();
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/* Set "Reset" Interrupt Address */
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* Args: &d - New Interrupt Address *
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* Returns: $00 If Successful, *
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* otherwise $FF */
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char setrst();
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