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Routines |
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Used by the routine at GameEntryPoint.
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| Decryption | FE99 | POP BC | Restore BC from the stack. | |
| FE9A | LD HL,($5CB0) | HL=*NMIADD. | ||
| FE9D | LD DE,($5C76) | DE=*SEED. | ||
| FEA1 | ADD HL,DE | HL+=DE. | ||
| FEA2 | LD DE,$6D60 | DE=6D60. | ||
| FEA5 | EX DE,HL | Exchange the DE and HL registers. | ||
| FEA6 | LD BC,$8FF2 | BC=8FF2. | ||
| Decryption_Loop | FEA9 | LD A,(HL) | A=*HL. | |
| FEAA | XOR D | D=00. | ||
| FEAB | ADD A,E | A+=E. | ||
| FEAC | CPL | Invert the bits in A. | ||
| FEAD | LD D,A | D=A. | ||
| FEAE | LD (HL),A | Write A to *HL. | ||
| FEAF | OUT ($FE),A | Send A to the speaker. | ||
| FEB1 | INC E | Increment E by one. | ||
| FEB2 | INC HL | Increment HL by one. | ||
| FEB3 | DEC BC | Decrease BC by one. | ||
| FEB4 | LD A,B | Jump to Decryption_Loop until BC is zero. | ||
| FEB5 | OR C | |||
| FEB6 | JR NZ,Decryption_Loop | |||
| FEB8 | OUT ($FE),A | Send A to the speaker. | ||
| FEBA | POP BC | Restore BC from the stack. | ||
| FEBB | LD A,C | A=C. | ||
| FEBC | ADD A,$32 | A+=32. | ||
| FEBE | LD ($FECB),A | Write A to *FECB. | ||
| FEC1 | EX (SP),IY | Exchange the *SP and IY registers. | ||
| FEC3 | LD IY,$5C3A | IY=ERR_NR. | ||
| FEC7 | LD SP,$6D5E | SP=6D5E. | ||
| FECA | EI | Enable interrupts. | ||
| FECB | JP MoveCode | Jump to MoveCode. | ||
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