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Routines |
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| ControlCode_07 | 39210 | PUSH BC | Stash BC on the stack. | |
| 39211 | LD C,0 | Set initial speaker state in C to OFF. | ||
| 39213 | LD B,20 | Set the repeat loop counter in B to 20. | ||
| ControlCode_07_OuterLoop | 39215 | LD HL,20 | Set the delay loop in HL to 0020. | |
| ControlCode_07_DelayLoop | 39218 | DEC HL | Decrease the delay loop by one. | |
| 39219 | LD A,H | Jump back to ControlCode_07_DelayLoop until the delay loop is zero. | ||
| 39220 | OR L | |||
| 39221 | JR NZ,ControlCode_07_DelayLoop | |||
| 39223 | LD A,C | Flip the current speaker state. | ||
| 39224 | XOR %00010000 | |||
| 39226 | LD C,A | |||
| 39227 | OUT (254),A | Send it to the speaker. | ||
| 39229 | DJNZ ControlCode_07_OuterLoop | Decrease the repeat loop counter by one and loop back to ControlCode_07_OuterLoop until the repeat loop counter is zero. | ||
| 39231 | JP ControlCode_Return_2 | Jump to ControlCode_Return_2. | ||
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