Routines 
Prev: CB99  Up: Map  Next: CC3E 


CB9C  LD HL,$CC3D  HL=CC3D.  
CB9F  RES 7,(HL)  Reset bit 7 of *HL.  
CBA1  LD A,(HL)  A=*HL.  
CBA2  RRCA  Rotate A right one bit (with carry).  
CBA3  JR C,$CBD0  Jump to CBD0 if the carry bit was set.  
CBA5  RRCA  Rotate A right one bit (with carry).  
CBA6  JR C,$CBFB  Jump to CBFB if the carry bit was set.  
CBA8  RRCA  Rotate A right one bit (with carry).  
CBA9  JR C,$CC0B  Jump to CC0B if the carry bit was set.  
CBAB  RRCA  Rotate A right one bit (with carry).  
CBAC  JR C,$CBBC  Jump to CBBC if the carry bit was set.  
CBAE  RRCA  Rotate A right one bit (with carry).  
CBAF  JR C,$CBC7  Jump to CBC7 if the carry bit was set.  
CBB1  RRCA  Rotate A right one bit (with carry).  
CBB2  JR C,$CBF2  Jump to CBF2 if the carry bit was set.  
CBB4  LD A,$06  Set border to YELLOW.  
CBB6  OUT ($FE),A  
CBB8  HALT  Halt operation (suspend CPU until the next interrupt).  
CBB9  RES 7,(HL)  Reset bit 7 of *HL.  
CBBB  RET  Return.  
CBBC  LD DE,$0070  DE=0070.  
CBBF  LD ($CC3B),DE  Write DE to *CC3B.  
CBC3  RES 3,(HL)  Reset bit 3 of *HL.  
CBC5  JR $CBD0  Jump to CBD0.  
CBC7  LD DE,$0100  DE=0100.  
CBCA  LD ($CC3B),DE  Write DE to *CC3B.  
CBCE  RES 4,(HL)  Reset bit 4 of *HL.  
CBD0  RES 0,(HL)  Reset bit 0 of *HL.  
CBD2  LD A,$06  A=06.  
CBD4  LD DE,$FFFF  DE=FFFF.  
CBD7  LD IX,($CC3B)  IX=CC3B.  
CBDB  ADD IX,DE  IX+=DE.  
CBDD  JR NC,$CBE5  Jump to CBE5 if {} is higher.  
CBDF  BIT 7,(HL)  Jump to CBEF if bit 7 of *HL is not zero.  
CBE1  JR NZ,$CBEF  
CBE3  JR $CBDB  Jump to CBDB.  
CBE5  BIT 7,(HL)  Jump to CBEF if bit 7 of *HL is not zero.  
CBE7  JR NZ,$CBEF  
CBE9  XOR %00011000  XOR bits 34 (if they are set, unset them and if they are unset, set them).  
CBEB  OUT ($FE),A  OUT FE  
CBED  JR $CBD7  Jump to CBD7.  
CBEF  RES 7,(HL)  Reset bit 7 of *HL.  
CBF1  RET  Return.  
CBF2  RES 5,(HL)  Reset bit 5 of *HL.  
CBF4  LD C,$00  C=00.  
CBF6  LD DE,$0040  DE=0040.  
CBF9  JR $CC12  Jump to CC12.  
CBFB  RES 1,(HL)  Reset bit 1 of *HL.  
CBFD  CALL $C1CD  Call C1CD.  
CC00  BIT 0,(IX+$00)  Jump to CBA8 if bit 0 of *IX+00 is not zero.  
CC04  JR NZ,$CBA8  
CC06  LD DE,$0020  DE=0020.  
CC09  JR $CC10  Jump to CC10.  
CC0B  RES 2,(HL)  Reset bit 2 of *HL.  
CC0D  LD DE,$0060  DE=0060.  
CC10  LD C,$06  C=06.  
CC12  LD ($CC3B),DE  Write DE to *CC3B.  
CC16  LD DE,$FFFF  DE=FFFF.  
CC19  LD IX,($CC3B)  IX=CC3B.  
CC1D  ADD IX,DE  IX+=DE.  
CC1F  JR NC,$CC27  Jump to CC27 if {} is higher.  
CC21  BIT 7,(HL)  Jump to CC38 if bit 7 of *HL is not zero.  
CC23  JR NZ,$CC38  
CC25  JR $CC1D  Jump to CC1D.  
CC27  BIT 7,(HL)  Jump to CC38 if bit 7 of *HL is not zero.  
CC29  JR NZ,$CC38  
CC2B  CALL $C1CD  Call C1CD.  
CC2E  LD A,($C1E5)  A=*C1E5.  
CC31  AND %00011000  Keep only bits 34.  
CC33  OR C  Set the bits from C.  
CC34  OUT ($FE),A  OUT FE  
CC36  JR $CC19  Jump to CC19.  
CC38  RES 7,(HL)  Reset bit 7 of *HL.  
CC3A  RET  Return.  
CC3B  DEFW $0100  
CC3D  DEFB $00 
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