Routines
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6144: Swap current/inactive player/rocket states.
Used by the routines at 60b7 and 62da.
6144 ld hl,$5df0 Current player level/lives
6147 ld de,$5df8 Inactive player level/lives
614a ld b,$02
614c call $6157 Swap 2 bytes
Now swap the current/inactive rocket states.
614f ld hl,$5d30 Current player rocker state
6152 ld de,$5d98 Inactive player rocker state
6155 ld b,$18 We will be swapping 24 bytes
Sub-routine for swapping HL/DE bytes.
6157 ld a,(de)
6158 ld c,(hl)
6159 ld (hl),a
615a ld a,c
615b ld (de),a
615c inc hl
615d inc de
615e djnz $6157
6160 ret
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