6502/kickc
1
0
Fork 0
mirror of https://gitlab.com/camelot/kickc.git synced 2024-10-11 12:23:45 +00:00
Code Issues Projects Releases Wiki Activity

Comment fixed

Browse Source
This commit is contained in:
jespergravgaard 2018-02-25 00:10:10 +01:00
parent 73bdd4ff8d
commit 651de919b3
2 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/test/java/dk/camelot64/kickc/test/kc/sinusgen.kc
View File

@ -73,8 +73,7 @@ signed word sin16s(dword x) {
word usinx = x1 - x3_6; // u[1.15] x - x^3/6
word x4 = mul_u16_sel(x3, x1, 0); // u[3.13] x^4
word x5 = mul_u16_sel(x4, x1, 0); // u[4.12] x^5
//word x5_128 = mul_u16_sel(x5, $10000/128, 3); // u[1.15] x^5/128;
word x5_128 = x5>>4;
word x5_128 = x5>>4; // // u[1.15] x^5/128 -- much more efficient than mul_u16_sel(x5, $10000/128, 3);
usinx = usinx + x5_128; // u[1.15] (always an initial zero)
signed word sinx = (signed word)usinx; // s[0.15]
if(isUpper!=0) {

3
src/test/java/dk/camelot64/kickc/test/ref/sinusgen.log
View File

@ -74,8 +74,7 @@ signed word sin16s(dword x) {
word usinx = x1 - x3_6; // u[1.15] x - x^3/6
word x4 = mul_u16_sel(x3, x1, 0); // u[3.13] x^4
word x5 = mul_u16_sel(x4, x1, 0); // u[4.12] x^5
//word x5_128 = mul_u16_sel(x5, $10000/128, 3); // u[1.15] x^5/128;
word x5_128 = x5>>4;
word x5_128 = x5>>4; // // u[1.15] x^5/128 -- much more efficient than mul_u16_sel(x5, $10000/128, 3);
usinx = usinx + x5_128; // u[1.15] (always an initial zero)
signed word sinx = (signed word)usinx; // s[0.15]
if(isUpper!=0) {