Spellbound (48k): Routine at 36692

36692: Convert leading zeroes to spaces in a string number

Used by the routine at 36647.

Input
C	Number of required digits in string (e.g. 2)
HL	Pointer to location within ASCII string

36692

LD A,(HL)

Load ASCII character at HL into A

36693

CP 48

If character is not a zero ("0")...

36695

RET NZ

...then return

36696

LD (HL),32

Replace the zero character with a space (i.e. remove leading zeroes from number)

36698

INC HL

Advance to next character in string

36699

DEC C

Decrease C (number of remaining digits to process)

36700

RET Z

Return if last digit has been processed

36701

JR 36692

Loop back for next digit