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Routines |
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Used by the routine at AccelerateObject.
Limits a speed to the range set by AccelerateObject.
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| LimitSpeedToRange | 35903 | BIT 7,H | Jump to LimitSpeedToRange_Negative if it is negative. | |||||||||
| 35905 | JR NZ,LimitSpeedToRange_Negative | |||||||||||
| 35907 | LD A,(35843) | Fetch the positive limit from 35843. | ||||||||||
| 35910 | DEC A | Subtract one. | ||||||||||
| 35911 | CP H | Compare it with the high byte of the speed. | ||||||||||
| 35912 | RET NC | Return if the speed is within the limit. | ||||||||||
| 35913 | INC A | Restore the limit... | ||||||||||
| 35914 | LD H,A | ...and use it as the speed. | ||||||||||
| 35915 | LD L,0 | Clear the low byte of the speed. | ||||||||||
| 35917 | RET | Return. | ||||||||||
| LimitSpeedToRange_Negative | 35918 | LD A,(35844) | Fetch the negative limit from 35844. | |||||||||
| 35921 | CP H | Compare it with the high byte of the speed. | ||||||||||
| 35922 | RET C | Return if the speed is within the limit. | ||||||||||
| 35923 | INC A | Add one to the limit... | ||||||||||
| 35924 | LD H,A | ...and use it as the speed. | ||||||||||
| 35925 | LD L,0 | Clear the low byte of the speed. | ||||||||||
| 35927 | RET | Return. | ||||||||||
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