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author
Tobias Girstmair
<tobi@isticktoit.net>
Thu, 4 Mar 2021 14:24:31 +0000
(15:24 +0100)
committer
Tobias Girstmair
<tobi@isticktoit.net>
Thu, 4 Mar 2021 14:24:31 +0000
(15:24 +0100)
bsv.c
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diff --git
a/bsv.c
b/bsv.c
index d0889062ace1dbbb87148d2ebebc0d65362007ea..ec2d3594704a1444acd52f7ad4e8ccac08298e8e 100644
(file)
--- a/
bsv.c
+++ b/
bsv.c
@@
-19,10
+19,12
@@
void mod3(void) {
MOV(acc,mod3hi)
ADD(mod3lo,acc) // mod3lo = hi+lo
flag_c = x;
- CLEAR(mod3hi)
- ADDC0(mod3hi)
+ CLEAR(acc)
+ ADDC0(acc) // mod3hi, 1bit
+ SWAP(acc)
+ MOV(mod3hi, acc)
- mod3lo =
(mod3hi<<4|
mod3lo>>4) + (mod3lo & 0xF);
+ mod3lo =
mod3hi + (
mod3lo>>4) + (mod3lo & 0xF);
mod3lo = (mod3lo >> 2) + (mod3lo & 0x3);
mod3lo = (mod3lo >> 2) + (mod3lo & 0x3);
if (mod3lo > 2) mod3lo = mod3lo - 3;