Routines
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53936: Draw Digits
Used by the routine at DrawBountyDigits.
Draws a number which is held as pairs of packed decimal digits, as double height characters from Font_Digits.
digits
Input
B The number of bytes of the number
DE The address of the number
HL The screen address
A' The attribute
Prepare the upper digit.
DrawDigits 53936 LD A,(DE) Fetch the byte.
53937 RRCA Move the upper digit to the lower four bits.
53938 RRCA
53939 RRCA
53940 RRCA
53941 AND %00001111 Keep only bits 0-3.
53943 PUSH BC Stash the counter on the stack.
53944 LD BC,36528 Point BC at Font_Digits.
Draw the upper digit.
53947 CALL DrawCharacter Call DrawCharacter.
Prepare the lower digit.
53950 LD A,(DE) Fetch the byte again, and move to the next one.
53951 INC DE
53952 AND %00001111 Keep only bits 0-3.
Draw the lower digit.
53954 CALL DrawCharacter Call DrawCharacter.
53957 POP BC Restore the counter from the stack.
53958 DJNZ DrawDigits Jump to DrawDigits if there are any left.
53960 RET Return.
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