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Routines |
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Used by the routines at Alias_GameEntryPoint and 41191.
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| GameEntryPoint | 41024 | XOR A | Write 0 to | |
| 41025 | LD (54968),A | |||
| 41028 | LD (40987),A | |||
| 41031 | DI | Disable interrupts. | ||
| 41032 | CALL DrawDecorativeLine | Call DrawDecorativeLine. | ||
| 41035 | LD SP,23936 | SP=23936. | ||
| 41038 | CALL WaitForKeypress_Loop | Call WaitForKeypress_Loop. | ||
| 41041 | CP 110 | Jump to NoMeansNo if the keypress is ASCII code 110 ("n"). | ||
| 41043 | JR Z,NoMeansNo | |||
| 41045 | CP 78 | Compare the keypress with ASCII code 78 ("N"). | ||
| 41047 | LD A,1 | A=1. | ||
| 41049 | JR NZ,GameEntryPoint_0 | Jump to GameEntryPoint_0 if the keypress was not ASCII code 78 ("N"). | ||
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The player pressed either "N" or "n".
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| NoMeansNo | 41051 | XOR A | A=0. | |
| GameEntryPoint_0 | 41052 | LD (40977),A | Write A to *40977. | |
| 41055 | LD A,R | Write the contents of the Memory Refresh Register to *41015. | ||
| 41057 | LD (41015),A | |||
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This entry point is used by the routine at 41191.
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| GameEntryPoint_1 | 41060 | XOR A | Write 0 to *41178. | |
| 41061 | LD (41178),A | |||
| GameEntryPoint_2 | 41064 | LD A,(41178) | Jump to 41191 if *41178 is not zero. | |
| 41067 | AND A | |||
| 41068 | JR NZ,41191 | |||
| 41070 | CALL Handler_GameClock | Call Handler_GameClock. | ||
| 41073 | CALL Handler_DateBar | Call Handler_DateBar. | ||
| 41076 | LD IY,39008 | IY=39008. | ||
| 41080 | LD A,(IY+3) | A=*IY+3. | ||
| 41083 | CP 50 | Jump to GameEntryPoint_3 if A is not equal to 50. | ||
| 41085 | JR NZ,GameEntryPoint_3 | |||
| 41087 | CALL GetKeypress | Call GetKeypress. | ||
| 41090 | BIT 7,A | Jump to GameEntryPoint_3 if bit 7 of A is not set. | ||
| 41092 | JR Z,GameEntryPoint_3 | |||
| 41094 | CP 141 | Jump to GameEntryPoint_3 if A is not equal to 141. | ||
| 41096 | JR NZ,GameEntryPoint_3 | |||
| 41098 | LD HL,(40925) | HL=*CurrentTime_Ticker. | ||
| 41101 | LD (IY+6),L | Write L to *IY+6. | ||
| 41104 | LD (IY+7),H | Write H to *IY+7. | ||
| GameEntryPoint_3 | 41107 | LD IY,39008 | IY=39008. | |
| Game_Loop | 41111 | LD A,(IY+0) | A=*IY+0. | |
| 41114 | INC A | Increment A by one. | ||
| 41115 | JR Z,GameEntryPoint_2 | Jump to GameEntryPoint_2 if A is equal to 141. | ||
| 41117 | LD HL,(40925) | HL=*CurrentTime_Ticker. | ||
| 41120 | CALL 41179 | Call 41179. | ||
| 41123 | JR C,GameEntryPoint_5 | Jump to GameEntryPoint_5 if A is less than 141. | ||
| 41125 | LD A,(IY+0) | A=*IY+0. | ||
| 41128 | PUSH IY | Stash IY and AF on the stack. | ||
| 41130 | PUSH AF | |||
| 41131 | CALL 52279 | Call 52279. | ||
| GameEntryPoint_4 | 41134 | POP AF | Restore AF from the stack. | |
| 41135 | PUSH AF | Stash AF on the stack. | ||
| 41136 | CALL ScriptInterpreter | Call ScriptInterpreter. | ||
| 41139 | LD HL,(40991) | HL=*40991. | ||
| 41142 | LD A,L | Jump back to GameEntryPoint_4 until HL is zero. | ||
| 41143 | OR H | |||
| 41144 | JR Z,GameEntryPoint_4 | |||
| 41146 | POP AF | Restore AF and IY from the stack. | ||
| 41147 | POP IY | |||
| 41149 | LD E,(IY+6) | E=*IY+6. | ||
| 41152 | LD D,(IY+7) | D=*IY+7. | ||
| 41155 | ADD HL,DE | HL+=DE. | ||
| 41156 | LD (IY+6),L | Write L to *IY+6. | ||
| 41159 | LD (IY+7),H | Write H to *IY+7. | ||
| 41162 | PUSH IY | Stash IY on the stack. | ||
| 41164 | CALL 40055 | Call 40055. | ||
| 41167 | POP IY | Restore IY from the stack. | ||
| GameEntryPoint_5 | 41169 | LD DE,8 | DE=0008. | |
| 41172 | ADD IY,DE | IY+=DE. | ||
| 41174 | JR Game_Loop | Jump to Game_Loop. | ||
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