ABelliqueux/psx-spx.github.io
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Rename "outer product" to "cross product"

Browse Source 
Add a note to mention the old name
This commit is contained in:
Spencer Alves 2022-06-11 13:06:57 -07:00 committed by GitHub
parent 851ac83033
commit fdbcc0c107
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
docs/geometrytransformationenginegte.md
View File

@ -313,7 +313,7 @@ FFFF8900h (negative 16bit).<br/>
0xh - N/A
06h NCLIP 8 Normal clipping
0xh - N/A
0Ch OP(sf) 6 Outer product of 2 vectors
0Ch OP(sf) 6 Cross product of 2 vectors
0xh - N/A
10h DPCS 8 Depth Cueing single
11h INTPL 8 Interpolation of a vector and far color vector
@ -374,7 +374,7 @@ sorted by their fake numbers gives a more or less well arranged list:<br/>
14h NCLIP 8 Normal clipping
15h AVSZ3 5 Average of three Z values
16h AVSZ4 6 Average of four Z values
17h OP(sf) 6 Outer product of 2 vectors
17h OP(sf) 6 Cross product of 2 vectors
18h - N/A
19h GPF(sf)5 General purpose interpolation
1Ah GPL(sf)5 General purpose interpolation with base
@ -488,14 +488,14 @@ matrix (with elements -60h, +60h, IR0, RT13, RT13, RT13, RT22, RT22, RT22).<br/>
Calculates the square of a vector. The result is, of course, always positive,
so the "lm" flag for negative saturation has no effect.<br/>
#### COP2 170000Ch+sf\*80000h - 6 Cycles - OP(sf,lm) - Outer product of 2 vectors
#### COP2 170000Ch+sf\*80000h - 6 Cycles - OP(sf,lm) - Cross product of 2 vectors
```
[MAC1,MAC2,MAC3] = [IR3*D2-IR2*D3, IR1*D3-IR3*D1, IR2*D1-IR1*D2] SAR (sf*12)
[IR1,IR2,IR3] = [MAC1,MAC2,MAC3] ;copy result
```
Calculates the outer product of two signed 16bit vectors. Note: D1,D2,D3 are
Calculates the cross product of two signed 16bit vectors. Note: D1,D2,D3 are
meant to be the RT11,RT22,RT33 elements of the RT matrix "misused" as vector.
lm should be usually zero.<br/>
lm should be usually zero. The mnemonic refers to "outer product."<br/>
#### LZCS/LZCR registers - ? Cycles - Count-Leading-Zeroes/Leading-Ones
The LZCS/LZCR registers offer a Count-Leading-Zeroes/Leading-Ones function.<br/>