Contact Sam Cruise: Routine at 60641

60641: 'O' pressed - left

The address of this routine is found in the table of keypress handling routines at 60672. It is called from the main loop at 61483 when 'O' is pressed.

Input
H	230 (Sam)

60641

CALL 60347

Move Sam left (or in the next best direction) if possible

This entry point is used by the routines at 60626, 60631 and 60636.

60644

RET NC

Return if Sam could not move in the desired direction

60645

LD A,(32765)

Collect the offset of the last key pressed from 32765

60648

BIT 3,A

Set the zero flag if a 'fast' key (upper case Q, A, O or P) was pressed

60650

LD B,4

4=fast

60652

JR Z,60656

Jump if a 'fast' key was pressed

This entry point is used by the routines at 28635, 30458, 31204 and 62192.

60654

LD B,8

8=slow

60656

CALL 60521

Make a sound effect

60659

LD L,7

Point HL at byte 7 of Sam's buffer

60661

LD A,(HL)

A=0 if Sam is neither midstride nor mid-action now

60662

INC L

Set Sam's main action timer in byte 8 of his buffer to either 4 (fast) or 8 (slow)

60663

LD (HL),B

60664

AND A

Is Sam midstride or mid-action?

60665

RET Z

Return if not

60666

INC L

Set Sam's midstride/mid-action timer in byte 9 of his buffer to either 4 (fast) or 8 (slow)

60667

LD (HL),B

60668

RET