|
Routines |
| Prev: 58144 | Up: Map | Next: 58262 |
|
|
||||
| 58194 | LD A,R | Set the low byte in L to the contents of the Memory Refresh Register. | ||
| 58196 | LD L,A | |||
| 58197 | LD H,200 | Set the high byte in H to 200. | ||
| 58199 | LD B,50 | Set a loop counter in B to 50. | ||
| 58201 | LD D,5 | Set a delay counter in D of 5. | ||
| 58203 | LD A,(HL) | A=*HL. | ||
| 58204 | AND %00011000 | Keep only bits 3-4. | ||
| 58206 | OR %00000101 | Set bits 0, 2. | ||
| 58208 | OUT (254),A | Set border to the colour held by A. | ||
| 58210 | INC HL | Increment HL by one. | ||
| 58211 | PUSH BC | Stash the loop counter on the stack. | ||
| 58212 | LD B,D | Set the delay loop counter. | ||
| Delay_Loop_01 | 58213 | DJNZ Delay_Loop_01 | Decrease the delay counter by one and loop back to Delay_Loop_01 until the delay counter is zero. | |
| 58215 | POP BC | Restore the loop counter from the stack. | ||
| 58216 | DJNZ 58203 | Decrease the loop counter by one and loop back to 58203 until the loop counter is zero. | ||
| 58218 | HALT | Halt operation (suspend CPU until the next interrupt) twice. | ||
| 58219 | HALT | |||
| 58220 | CALL Handler_PlayerInput | Call Handler_PlayerInput. | ||
| 58223 | CP 1 | Return if the player has pressed any direction key. | ||
| 58225 | RET Z | |||
| 58226 | CP 2 | |||
| 58228 | RET Z | |||
| 58229 | CP 4 | |||
| 58231 | RET Z | |||
| 58232 | CP 8 | |||
| 58234 | RET Z | |||
| 58235 | HALT | Halt operation (suspend CPU until the next interrupt) twice. | ||
| 58236 | HALT | |||
| 58237 | LD A,R | Set the low byte in L to the contents of the Memory Refresh Register. | ||
| 58239 | LD L,A | |||
| 58240 | LD H,10 | Set the high byte in H to 10. | ||
| 58242 | LD B,35 | Set a loop counter in B to 35. | ||
| 58244 | LD C,100 | Set a delay counter in C this time of 100. | ||
| 58246 | LD A,(HL) | A=*HL. | ||
| 58247 | AND %00011000 | Keep only bits 3-4. | ||
| 58249 | OR %00000101 | Set bits 0, 2. | ||
| 58251 | OUT (254),A | Set border to the colour held by A. | ||
| 58253 | INC HL | Increment HL by one. | ||
| 58254 | PUSH BC | Stash the loop counter on the stack. | ||
| 58255 | LD B,C | Set the delay loop counter. | ||
| Delay_Loop_02 | 58256 | DJNZ Delay_Loop_02 | Decrease the delay counter by one and loop back to Delay_Loop_02 until the delay counter is zero. | |
| 58258 | POP BC | Restore the loop counter from the stack. | ||
| 58259 | DJNZ 58246 | Decrease the loop counter by one and loop back to 58246 until the loop counter is zero. | ||
| 58261 | RET | Return. | ||
| Prev: 58144 | Up: Map | Next: 58262 |