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65386: Scale both X and Y offsets
Used by the routine at GET_OFFSETS.
Input
A scale to apply
Output
D scaled Y offset
E scaled X offset
SCALE_OFFSETS 65386 LD D,0
65388 LD E,(IX+2) E=Y offset
65391 CALL SCALE_ONE_OFFSET Calculate scaled offset
65394 LD C,L C=scaled Y offset
65395 LD E,(IX+1) E=X offset
65398 CALL SCALE_ONE_OFFSET Calculate scaled offset
65401 LD D,C D=scaled Y offset
65402 LD E,L E=scaled X offset
65403 RET
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