#if !defined( __Z180_H__ )
    #define   __Z180_H__ 
/*
 *---------------------------------------------------------------------------
 *
 *  FILE   : Z180.H
 *
 *  PURPOSE: definitions on the built in I/O ports for the Z180/HD64180
 *           for use with SDCC
 *
 *           Makes use of the newly included Z80 I/O support in SDCC
 *
 *  AUTHOR : Peter Townson 2003
 *
 *---------------------------------------------------------------------------
 */
#if !defined( Z180_IO_BASE )
    #define   Z180_IO_BASE  0  /* zero is the Reset default */
#endif

/* will want this to be the case by default (I think) */
#pragma portmode z180

static void _ENABLE_Z180_ASSEMBLER_(void) __naked { __asm .hd64 __endasm; }

/*
 *---------------------------------------------------------------------------
 *      Z180/HD64180 internal port addresses
 */
__sfr __at (Z180_IO_BASE+0x00) CNTLA0;  /* ASCI control register A channel 0 */
__sfr __at (Z180_IO_BASE+0x01) CNTLA1;  /* ASCI control register A channel 1 */
__sfr __at (Z180_IO_BASE+0x02) CNTLB0;  /* ASCI control register B channel 0 */
__sfr __at (Z180_IO_BASE+0x03) CNTLB1;  /* ASCI control register B channel 0 */
__sfr __at (Z180_IO_BASE+0x04) STAT0 ;  /* ASCI status register    channel 0 */
__sfr __at (Z180_IO_BASE+0x05) STAT1 ;  /* ASCI status register    channel 1 */
__sfr __at (Z180_IO_BASE+0x06) TDR0  ;  /* ASCI transmit data reg, channel 0 */
__sfr __at (Z180_IO_BASE+0x07) TDR1  ;  /* ASCI transmit data reg, channel 1 */
__sfr __at (Z180_IO_BASE+0x08) RDR0  ;  /* ASCI receive data reg,  channel 0 */
__sfr __at (Z180_IO_BASE+0x09) RDR1  ;  /* ASCI receive data reg,  channel 0 */
__sfr __at (Z180_IO_BASE+0x0A) CNTR  ;  /* CSI/0 control register */
__sfr __at (Z180_IO_BASE+0x0B) TRDR  ;  /* CSI/0 transmit/receive data reg */

__sfr __at (Z180_IO_BASE+0x0C) TMDR0L;  /* Timer data register,    channel 0L */
__sfr __at (Z180_IO_BASE+0x0D) TMDR0H;  /* Timer data register,    channel 0H */
__sfr __at (Z180_IO_BASE+0x0E) RLDR0L;  /* Timer reload register,  channel 0L */
__sfr __at (Z180_IO_BASE+0x0F) RLDR0H;  /* Timer reload register,  channel 0H */
__sfr __at (Z180_IO_BASE+0x10) TCR   ;  /* Timer control register */
__sfr __at (Z180_IO_BASE+0x14) TMDR1L;  /* Timer data register,    channel 1L */
__sfr __at (Z180_IO_BASE+0x15) TMDR1H;  /* Timer data register,    channel 1H */
__sfr __at (Z180_IO_BASE+0x16) RLDR1L;  /* Timer reload register,  channel 1L */
__sfr __at (Z180_IO_BASE+0x17) RLDR1H;  /* Timer reload register,  channel 1H */
__sfr __at (Z180_IO_BASE+0x18) FRC   ;  /* Timer Free running counter */

__sfr __at (Z180_IO_BASE+0x20) SAR0L ;  /* DMA source address reg, channel 0L */
__sfr __at (Z180_IO_BASE+0x21) SAR0H ;  /* DMA source address reg, channel 0H */
__sfr __at (Z180_IO_BASE+0x22) SAR0B ;  /* DMA source address reg, channel 0B */
__sfr __at (Z180_IO_BASE+0x23) DAR0L ;  /* DMA dest address reg,   channel 0L */
__sfr __at (Z180_IO_BASE+0x24) DAR0H ;  /* DMA dest address reg,   channel 0H */
__sfr __at (Z180_IO_BASE+0x25) DAR0B ;  /* DMA dest address reg,   channel 0B */
__sfr __at (Z180_IO_BASE+0x26) BCR0L ;  /* DMA byte count reg,     channel 0L */
__sfr __at (Z180_IO_BASE+0x27) BCR0H ;  /* DMA byte count reg,     channel 0H */
__sfr __at (Z180_IO_BASE+0x28) MAR1L ;  /* DMA memory address reg, channel 1L */
__sfr __at (Z180_IO_BASE+0x29) MAR1H ;  /* DMA memory address reg, channel 1H */
__sfr __at (Z180_IO_BASE+0x2A) MAR1B ;  /* DMA memory address reg, channel 1B */
__sfr __at (Z180_IO_BASE+0x2B) IAR1L ;  /* DMA I/O address reg,    channel 1L */
__sfr __at (Z180_IO_BASE+0x2C) IAR1H ;  /* DMA I/O address reg,    channel 1H */
__sfr __at (Z180_IO_BASE+0x2E) BCR1L ;  /* DMA byte count reg,     channel 1L */
__sfr __at (Z180_IO_BASE+0x2F) BCR1H ;  /* DMA byte count reg,     channel 1H */
__sfr __at (Z180_IO_BASE+0x30) DSTAT ;  /* DMA status register */
__sfr __at (Z180_IO_BASE+0x31) DMODE ;  /* DMA mode register */
__sfr __at (Z180_IO_BASE+0x32) DCNTL ;  /* DMA/WAIT control register */

__sfr __at (Z180_IO_BASE+0x33) IL    ;  /* Interrupt vector low register */
__sfr __at (Z180_IO_BASE+0x34) ITC   ;  /* INT/TRAP control register */

__sfr __at (Z180_IO_BASE+0x36) RCR   ;  /* Refresh control register */

__sfr __at (Z180_IO_BASE+0x38) CBR   ;  /* MMU common base register */
__sfr __at (Z180_IO_BASE+0x39) BBR   ;  /* MMU bank base register */
__sfr __at (Z180_IO_BASE+0x3A) CBAR  ;  /* MMU common/bank area register */

__sfr __at (Z180_IO_BASE+0x3E) OMCR  ;  /* Operation mode control register */

__sfr __at (0x1234)  ICR   ;  /* I/O base control register - does not move */

/*
 *---------------------------------------------------------------------------
 *      Interrupt vectors (offsets) for Z180/HD64180 internal interrupts
 */
#define INT1_VECTOR     0x00    /* external /INT1 */
#define INT2_VECTOR     0x02    /* external /INT2 */
#define PRT0_VECTOR     0x04    /* PRT channel 0 */
#define PRT1_VECTOR     0x06    /* PRT channel 1 */
#define DMA0_VECTOR     0x08    /* DMA channel 0 */ /* ???? */
#define DMA1_VECTOR     0x0A    /* DMA Channel 1 */
#define CSIO_VECTOR     0x0C    /* Clocked serial I/O */
#define ASCI0_VECTOR    0x0E    /* Async channel 0 */
#define ASCI1_VECTOR    0x10    /* Async channel 1 */
#define INCAP_VECTOR    0x12    /* input capture */
#define OUTCMP_VECTOR   0x14    /* output compare */
#define TIMOV_VECTOR    0x16    /* timer overflow */
/*
 *---------------------------------------------------------------------------
 */
#endif  /* __Z180_H__ */

