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Routines |
| Prev: F85D | Up: Map | Next: FCB3 |
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Used by the routine at F85D.
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| FC43 | LD HL,$D83A | HL=Time. | ||
| FC46 | BIT 0,(HL) | Test bit 0 of *HL. | ||
| FC48 | JP Z,$FCA4 | Jump to FCA4 if is zero. | ||
| FC4B | LD HL,$D85D | HL=D85D. | ||
| FC4E | DEC (HL) | Decrease *HL by one. | ||
| FC4F | JP NZ,$FCA4 | Jump to FCA4 if *HL is not zero. | ||
| FC52 | LD (HL),$4B | Write 4B to *HL. | ||
| FC54 | LD HL,$D83A | HL=Time. | ||
| FC57 | BIT 5,(HL) | Test bit 5 of *HL. | ||
| FC59 | JP Z,$FC6D | Jump to FC6D if *HL is zero. | ||
| FC5C | LD A,$05 | A=05. | ||
| FC5E | LD D,$32 | D=32. | ||
| FC60 | LD E,$50 | E=50. | ||
| FC62 | XOR %00010000 | Flip bit 4. | ||
| FC64 | OUT ($FE),A | Set border to the colour held by A. | ||
| FC66 | LD B,D | B=D. | ||
| FC67 | DJNZ $FC67 | Decrease counter by one and loop back to FC67 until counter is zero. | ||
| FC69 | DEC E | Decrease E by one. | ||
| FC6A | JP NZ,$FC62 | Jump to FC62 if E is not zero. | ||
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This entry point is used by the routine at D894.
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| FC6D | LD HL,($D85B) | HL=*D85B. | ||
| FC70 | LD B,$04 | B=04. | ||
| FC72 | SLA (HL) | Shift *HL left (with carry). | ||
| FC74 | JP NC,$FC7D | Jump to FC7D if E is higher. | ||
| FC77 | INC H | Increment H by one. | ||
| FC78 | DJNZ $FC72 | Decrease counter by one and loop back to FC72 until counter is zero. | ||
| FC7A | JP $FCA4 | Jump to FCA4. | ||
| FC7D | LD A,($D85E) | A=*D85E. | ||
| FC80 | DEC A | Decrease A by one. | ||
| FC81 | JP Z,$FC9B | Jump to FC9B if A is zero. | ||
| FC84 | LD ($D85E),A | Write A to *D85E. | ||
| FC87 | CP $03 | Compare A with 03. | ||
| FC89 | JP P,$FC94 | Jump to FC94 P. | ||
| FC8C | LD A,($D83A) | A=*Time. | ||
| FC8F | SET 5,A | Set bit 5 of A. | ||
| FC91 | LD ($D83A),A | Write A to *Time. | ||
| FC94 | DEC HL | Decrease HL by one. | ||
| FC95 | LD ($D85B),HL | Write HL to *D85B. | ||
| FC98 | JP $FC72 | Jump to FC72. | ||
| FC9B | LD HL,$D83A | HL=Time. | ||
| FC9E | SET 4,(HL) | Set bit 4 of *HL. | ||
| FCA0 | RES 0,(HL) | Reset bit 0 of *HL. | ||
| FCA2 | RES 5,(HL) | Reset bit 5 of *HL. | ||
| FCA4 | LD HL,$D83A | HL=Time. | ||
| FCA7 | BIT 7,(HL) | Test bit 7 of *HL. | ||
| FCA9 | RET NZ | Return if HL is not zero. | ||
| FCAA | POP IX | Restore IX from the stack. | ||
| FCAC | POP HL | Restore HL, DE, BC and AF from the stack. | ||
| FCAD | POP DE | |||
| FCAE | POP BC | |||
| FCAF | POP AF | |||
| FCB0 | EI | Enable interrupts. | ||
| FCB1 | RETI | Return from the interrupt routine. | ||
| Prev: F85D | Up: Map | Next: FCB3 |