Comments for page "Math" http://z80-heaven.wikidot.com/forum/t-9847133/math Posts in the discussion thread "Math" Fri, 13 Mar 2026 08:33:30 +0000 http://z80-heaven.wikidot.com/forum/t-9847133#post-4798935 (no title) http://z80-heaven.wikidot.com/forum/t-9847133/math#post-4798935 Sun, 18 Oct 2020 14:46:19 +0000 megatokio 6940652 also:
DEHL_div_C is broken.
DEHL_times_A is broken.

just those which i tested.

i joined wikidot and applied for membership in Z80-heaven to corret it.
yesterday i had the impression i could edit the page but today i seem to be no longer a member of Z80-heaven.

links to this wiki can only be placed with a big warning ahead. :-(

]]> http://z80-heaven.wikidot.com/forum/t-9847133#post-4109911 (no title) http://z80-heaven.wikidot.com/forum/t-9847133/math#post-4109911 Sun, 06 Jan 2019 01:15:47 +0000 Stefan Noack 5042604 There is a bug in the HL_Div_C routine that gives wrong results, for example 37901 / 149 should be 254 but the routine yields 34, fixed code below:

HL_Div_C: ;Inputs: ; HL is the numerator ; C is the denominator ;Outputs: ; A is the remainder ; B is 0 ; C is not changed ; DE is not changed ; HL is the quotient ; ld b,16 xor a add hl,hl rla jr c,$+5 ; this line is missing cp c jr c,$+4 inc l sub c djnz $-9 ; this needs to be adjusted for the added code ret
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