Bit definitions for Suzy

asminc/lynx.inc

@@ -79,7 +79,7 @@ MATHL       = $FC6D
 MATHK       = $FC6E
 MATHJ       = $FC6F
 
-; Suzy Misc
+; Suzy sprite engine
 
 SPRCTL0          = $FC80
 ; Sprite bits-per-pixel definitions
@@ -122,10 +122,48 @@ SPRINIT     = $FC83
 SUZYHREV  = $FC88
 SUZYSREV  = $FC89
 SUZYBUSEN = $FC90
+
 SPRGO = $FC91
+; SPRGO bit definitions
+SPRITE_GO = %00000001  ; sprite process start bit
+EVER_ON   = %00000100  ; everon detector enable
+
 SPRSYS = $FC92
+; SPRSYS bit definitions for write operations
+SIGNMATH      = 0x80  ; signed math
+ACCUMULATE    = 0x40  ; accumulate multiplication results
+NO_COLLIDE    = 0x20  ; do not collide with any sprites (also SPRCOLL bit definition)
+VSTRETCH      = 0x10  ; stretch v
+LEFTHAND      = 0x08
+CLR_UNSAFE    = 0x04  ; unsafe access reset
+SPRITESTOP    = 0x02  ; request to stop sprite process
+; SPRSYS bit definitions for read operations
+MATHWORKING   = 0x80  ; math operation in progress
+MATHWARNING   = 0x40  ; accumulator overflow on multiple or divide by zero
+MATHCARRY     = 0x20  ; last carry bit
+VSTRETCHING   = 0x10
+LEFTHANDED    = 0x08
+UNSAFE_ACCESS = 0x04  ; unsafe access performed
+SPRITETOSTOP  = 0x02  ; requested to stop
+SPRITEWORKING = 0x01  ; sprite process is active
+
 JOYSTICK = $FCB0
+; JOYSTICK bit definitions
+JOYPAD_UP      = 0x80
+JOYPAD_DOWN    = 0x40
+JOYPAD_LEFT    = 0x20
+JOYPAD_RIGHT   = 0x10
+BUTTON_OPTION1 = 0x08
+BUTTON_OPTION2 = 0x04
+BUTTON_INNER   = 0x02
+BUTTON_OUTER   = 0x01
+
 SWITCHES    = $FCB1
+; SWITCHES bit definitions 
+CART1_IO_INACTIVE = 0x04
+CART0_IO_INACTIVE = 0x02
+BUTTON_PAUSE      = 0x01
+
 RCART0      = $FCB2
 RCART1      = $FCB3
 LEDS        = $FCC0
@@ -133,8 +171,7 @@ PARSTATUS   = $FCC2
 PARDATA     = $FCC3
 HOWIE       = $FCC4
 
-
-; ***
+;
 ; *** Mikey Addresses
 ; ***
 
@@ -212,7 +249,6 @@ RESET_DONE     = %01000000
 ENABLE_RELOAD  = %00010000
 ENABLE_COUNT   = %00001000
 AUD_CLOCK_MASK = %00000111
-
 ; Clock settings
 AUD_LINKING = %00000111
 AUD_64      = %00000110
@@ -278,15 +314,16 @@ ENABLE_INTEGRATE = %00100000
 ; Stereo capability does not exist in all Lynxes
 ; Left and right may be reversed, and if so will be corrected in a later
 ; release
-
 ATTENREG0 = $FD40 ; Stereo attenuation registers
 ATTENREG1 = $FD41
 ATTENREG2 = $FD42
 ATTENREG3 = $FD43
+
+MPAN    = $FD44
+MSTEREO = $FD50
+; Bit definitions for MPAN and MSTEREO registers
 LEFT_ATTENMASK  = %11110000
 RIGHT_ATTENMASK = %00001111
-
-; Bit definitions for MPAN and MSTEREO registers
 LEFT3_SELECT  = %10000000
 LEFT2_SELECT  = %01000000
 LEFT1_SELECT  = %00100000
@@ -296,9 +333,6 @@ RIGHT2_SELECT = %00000100
 RIGHT1_SELECT = %00000010
 RIGHT0_SELECT = %00000001
 
-MPAN        = $FD44
-MSTEREO     = $FD50
-
 ; Mikey interrupts
 
 INTRST = $FD80