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61791: Collect one byte from a command list
Used by the routine at 61809. Collects a byte from a character's current command list and returns it in A.
H Character number (215-229)
61791 PUSH HL Save the character number
61792 PUSH DE
61793 LD L,22 Byte 22 of the character's buffer holds the offset of the point reached in the command list (relative to the start)
61795 LD E,(HL) Pick up this offset in E
61796 INC (HL) Increment the offset
61797 INC L Collect the start address of the command list from bytes 23 and 24 of the character's buffer into HL
61798 LD A,(HL)
61799 INC L
61800 LD H,(HL)
61801 LD L,A
61802 LD D,0 DE=offset
61804 ADD HL,DE Point HL at the byte to collect from the command list
61805 LD A,(HL) Pick up the byte
61806 POP DE
61807 POP HL Restore the character number to H
61808 RET
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