********************************************************************
* Commodore-Amiga, Inc.
* blit.i
*
* $Header: blit.i,v 27.1 85/06/24 14:42:42 neil Exp $
*
* $Locker:  $
*
*********************************************************************

   IFND  HARDWARE_BLIT_I
HARDWARE_BLIT_I   SET   1

   STRUCTURE bltnode,0
   LONG  bn_n
   LONG  bn_function
   BYTE  bn_stat
   BYTE  bn_dummy
   WORD  bn_blitsize
   WORD  bn_beamsync
   LONG  bn_cleanup
   LABEL bn_SIZEOF

* bit defines used by blit queuer
CLEANMEn    equ 6
CLEANME     equ 1<<CLEANMEn

* include file for blitter */
HSIZEBITS   equ   6
VSIZEBITS   equ   16-HSIZEBITS
HSIZEMASK   equ   $3f         /* 2^6 -- 1 */
VSIZEMASK   equ   $3FF        /* 2^10 - 1 */

MAXBYTESPERROW EQU   128

* definitions for blitter control register 0 */

ABC         equ   $80
ABNC        equ   $40
ANBC        equ   $20
ANBNC       equ   $10
NABC        equ   $8
NABNC       equ   $4
NANBC       equ   $2
NANBNC      equ   $1

BC0B_DEST   equ     8 
BC0B_SRCC   equ     9 
BC0B_SRCB   equ     10 
BC0B_SRCA   equ     11 
BC0F_DEST   equ   $100
BC0F_SRCC   equ   $200
BC0F_SRCB   equ   $400
BC0F_SRCA   equ   $800

BC1F_DESC   equ 2

DEST        equ   $100
SRCC        equ   $200
SRCB        equ   $400
SRCA        equ   $800

ASHIFTSHIFT equ   12 /* bits to right align ashift value */
BSHIFTSHIFT equ   12 /* bits to right align bshift value */

* definations for blitter control register 1 */
LINEMODE    equ   $1
FILL_OR     equ   $8
FILL_XOR    equ   $10
FILL_CARRYIN   equ   $4
ONEDOT      equ   $2
OVFLAG      equ   $20
SIGNFLAG    equ   $40
BLITREVERSE equ   $2

SUD         equ   $10
SUL         equ   $8
AUL         equ   $4

OCTANT8     equ   24
OCTANT7     equ   4
OCTANT6     equ   12
OCTANT5     equ   28
OCTANT4     equ   20
OCTANT3     equ   8
OCTANT2     equ   0
OCTANT1     equ   16

   ENDC  !HARDWARE_BLIT_I