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Routines |
| Prev: 965F | Up: Map | Next: 96E8 |
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Used by the routines at RedefineKey and 965F.
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| 9688 | PUSH BC | Stash BC and HL on the stack. | ||
| 9689 | PUSH HL | |||
| 968A | LD HL,$F800 | HL=F800. | ||
| 968D | LD E,$FE | E=FE. | ||
| 968F | LD A,E | A=E. | ||
| 9690 | IN A,($FE) | A=byte from port FE. | ||
| 9692 | OR %11100000 | Set bits 5-7. | ||
| 9694 | CPL | Invert the bits in A. | ||
| 9695 | LD (HL),A | Write A to *HL. | ||
| 9696 | INC HL | Increment HL by one. | ||
| 9697 | RLC E | Rotate E left (with carry). | ||
| 9699 | JR C,$968F | Jump to 968F if HL is less than A. | ||
| 969B | LD (IY+$64),$00 | Write 00 to *IY+64. | ||
| 969F | LD HL,$F800 | HL=F800. | ||
| 96A2 | BIT 0,(HL) | Test bit 0 of *HL. | ||
| 96A4 | JR Z,$96B0 | Jump to 96B0 if HL is equal to A. | ||
| 96A6 | SET 0,(IY+$64) | Set bit 0 of *IX+64. | ||
| 96AA | RES 0,(HL) | Reset bit 0 of *HL. | ||
| 96AC | LD E,$FE | E=FE. | ||
| 96AE | LD D,$01 | D=01. | ||
| 96B0 | LD HL,$F807 | HL=F807. | ||
| 96B3 | BIT 1,(HL) | Test bit 1 of *HL. | ||
| 96B5 | JR Z,$96C1 | Jump to 96C1 if HL is equal to A. | ||
| 96B7 | SET 1,(IY+$64) | Set bit 1 of *IX+64. | ||
| 96BB | RES 1,(HL) | Reset bit 1 of *HL. | ||
| 96BD | LD E,$7F | E=7F. | ||
| 96BF | LD D,$02 | D=02. | ||
| 96C1 | PUSH IX | Stash IX on the stack. | ||
| 96C3 | LD IX,$F800 | IX=F800. | ||
| 96C7 | LD HL,$970D | HL=970D. | ||
| 96CA | LD B,$FE | B=FE. | ||
| 96CC | LD A,(IX+$00) | A=*IX+00. | ||
| 96CF | OR A | Set the bits from A. | ||
| 96D0 | JR NZ,$96F0 | Jump to 96F0 if HL is not equal to A. | ||
| 96D2 | INC IX | Increment IX by one. | ||
| 96D4 | LD A,$05 | L+=05. | ||
| 96D6 | ADD A,L | |||
| 96D7 | LD L,A | |||
| 96D8 | JR NC,$96DB | Jump to 96DB if HL is greater than or equal to A. | ||
| 96DA | INC H | Increment H by one. | ||
| 96DB | RLC B | Rotate B left (with carry). | ||
| 96DD | JR C,$96CC | Jump to 96CC if H is less than A. | ||
| 96DF | LD A,($F864) | Compare *F864 with itself for the return. | ||
| 96E2 | CP A | |||
| 96E3 | POP IX | Restore IX, HL and BC from the stack. | ||
| 96E5 | POP HL | |||
| 96E6 | POP BC | |||
| 96E7 | RET | Return. | ||
| Prev: 965F | Up: Map | Next: 96E8 |