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116 lines
3.6 KiB
Plaintext
116 lines
3.6 KiB
Plaintext
/****************************************
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* xmemory.h02 - Extended Memory Access *
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* for Commander X16 *
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****************************************/
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#define XLBANK $0F //Maximum Logical Bank
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/* Read Byte to Extended Memory *
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* Returns: char b: Byte Read *
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* Sets Carry if Address Rolled Over */
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char xgetc();
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/* Read Word to Extended Memory *
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* Returns: int i: Word Read *
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* Sets Carry if Address Rolled Over */
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int xgeti();
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/* Read Word, Byte to Extended Memory *
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* Args: char b: Byte Read *
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* int i: Word Read *
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* Sets Carry if Address Rolled Over */
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char xgetl();
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/* Get Logical Extended Address *
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* Returns: char lbank - Logical Bank *
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* int laddr - Logical Address *
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* Sets Carry if Physical Address Invalid */
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char xgetla();
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/* Get Physical Extended Address *
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* Returns: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte *
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* Sets Carry if Physical Address Invalid */
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char xgetpa();
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/* Convert Physical to Logical Address *
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* Args: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte *
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* Returns: char lbank - Logical Bank *
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* int laddr - Logical Address *
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* Sets Carry if Physical Address Invalid */
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char xclcla();
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/* Increment Physical Address *
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* Sets Carry if Address Rolled Over */
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void xincpa();
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/* Convert Logical to Physical Address *
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* Args: char lbank - Logical Bank *
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* int laddr - Logical Address *
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* Returns: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte *
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* Sets Carry if Logical Address Invalid */
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char xclcpa();
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/* Write Byte to Extended Memory *
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* Args: char b: Byte to Write *
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* Sets Carry if Address Rolled Over */
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void xputc();
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/* Write Word to Extended Memory *
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* Args: int i: Word to Write *
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* Sets Carry if Address Rolled Over */
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void xputi();
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/* Write Word, Byte to Extended Memory *
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* Args: char b: Byte to Write *
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* int i: Word to Write *
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* Sets Carry if Address Rolled Over */
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void xputl();
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/* Read Extended Memory Page *
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* Args: char lbank - Logical Bank *
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* char lpage - Logical Page *
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* char mpage - Memory Page *
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* Sets Carry if Logical Bank Invalid */
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void xrdpg();
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/* Set Logical Extended Address *
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* Args: char lbank - Logical Bank *
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* int laddr - Logical Address *
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* Sets Carry if Logical Address Invalid */
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void xsetla();
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/* Set Physical Extended Address *
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* without Error Checking *
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* Args: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte */
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void xsetpn();
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/* Set Physical Extended Address *
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* with Error Checking *
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* Args: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte *
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* Sets Carry if Physical Address Invalid */
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void xsetpa();
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/* Validate Physical Extended Address *
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* Args: char pbank - Physical Bank *
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* char ppage - Physical Page *
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* char pbyte - Physical Byte *
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* Sets Carry if Physical Address Invalid */
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void xvalpa();
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/* Write Extended Memory Page *
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* Args: char lbank - Logical Bank *
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* char lpage - Logical Page *
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* char mpage - Memory Page *
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* Sets Carry if Logical Bank Invalid */
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void xwrtpg();
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