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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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f3dex2 [2019/01/16 14:03] trenavix what the hell was wrong with texrect man cmon |
f3dex2 [2020/02/26 14:17] (current) jesusyoshi54 [01: G_VTX] |
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| ==== 00: G_SPNOOP ==== | ==== 00: G_SPNOOP ==== | ||
| - | No operation. This should only be used for debugging purposes. | + | Stalls the signal processor (the RSP), and as a consequence, the RDP too. This should only be used for debugging purposes. |
| ''00 00 00 00 00 00 00 00'' | ''00 00 00 00 00 00 00 00'' | ||
| Line 17: | Line 17: | ||
| | <color #22b14c>N</color> | Number of vertices to write | | | <color #22b14c>N</color> | Number of vertices to write | | ||
| - | | <color #ed1c24>I</color> | Where to start writing vertices inside the vertex buffer (*2 + <color #22b14c>N</color>*2) | | + | | <color #ed1c24>I</color> | Where to start writing vertices inside the vertex buffer (start = <color #ed1c24>II</color> - <color #22b14c>N</color>*2) | |
| | <color #A946F2>S</color> | Segmented address to load vertices from | | | <color #A946F2>S</color> | Segmented address to load vertices from | | ||
| Line 102: | Line 102: | ||
| This formula cannot be reversed for the value provided in the microcode, since the necessary information is absent. (Since the values are provided in the macro call generating this opcode, there's no guarantee any of the values match what they're "supposed" to be, e.g. //<color #ed1c24>near</color>// could be set to something far different from the location of the actual near clipping plane.) | This formula cannot be reversed for the value provided in the microcode, since the necessary information is absent. (Since the values are provided in the macro call generating this opcode, there's no guarantee any of the values match what they're "supposed" to be, e.g. //<color #ed1c24>near</color>// could be set to something far different from the location of the actual near clipping plane.) | ||
| + | |||
| + | **Note:** This command works differently in F3DZEX. | ||
| ---- | ---- | ||
| ==== 05: G_TRI1 ==== | ==== 05: G_TRI1 ==== | ||
| Line 114: | Line 116: | ||
| Example: Render a triangle using the vertex data specified at the vertex buffer positions 0, 1 (0x02 / 0x02) and 2 (0x04 / 0x02). | Example: Render a triangle using the vertex data specified at the vertex buffer positions 0, 1 (0x02 / 0x02) and 2 (0x04 / 0x02). | ||
| - | 05 00 02 04 00 00 02 04 | + | 05 00 02 04 00 00 00 00 |
| ---- | ---- | ||
| Line 221: | Line 223: | ||
| ''D8380002 <color #00a2e8>aaaaaaaa</color>'' | ''D8380002 <color #00a2e8>aaaaaaaa</color>'' | ||
| - | | <color #00a2e8>a</color> | The number of matrices to pop | | + | | <color #00a2e8>a</color> | (The number of matrices to pop) * 64| |
| ---- | ---- | ||
| Line 230: | Line 232: | ||
| ''D9 [<color #22b14c>CC CC CC</color>] [<color purple>SS SS SS SS</color>]'' | ''D9 [<color #22b14c>CC CC CC</color>] [<color purple>SS SS SS SS</color>]'' | ||
| - | | <color #22b14c>C</color> | Various parameters to clear | | + | | <color #22b14c>C</color> | ~(Various parameters to clear) | |
| | <color purple>S</color> | Various parameters to set | | | <color purple>S</color> | Various parameters to set | | ||
| + | |||
| + | Note: Parameters that are cleared have their bits inverted in the opcode. FF FF FF, for example, would disable nothing. | ||
| Parameters:\\ | Parameters:\\ | ||
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| Apply transformation matrix. Used in HUD text printing code to translate textures, as well as copious other transformations including animations. | Apply transformation matrix. Used in HUD text printing code to translate textures, as well as copious other transformations including animations. | ||
| - | ''DA [<color darkred>PP</color>] 00 00 [<color purple>AA AA AA AA</color>]'' | + | ''DA 38 00 [<color darkred>PP</color>] [<color purple>AA AA AA AA</color>]'' |
| - | | <color darkred>P</color> | Parameters | | + | | <color darkred>P</color> | Parameters **^** G_MTX_PUSH | |
| | <color purple>A</color> | Segmented address of vectors | | | <color purple>A</color> | Segmented address of vectors | | ||
| Line 252: | Line 256: | ||
| Example: Push matrix and and multiply by matrix at 0x00213DF8; Multiply by matrix at 0x00213DB8 | Example: Push matrix and and multiply by matrix at 0x00213DF8; Multiply by matrix at 0x00213DB8 | ||
| - | DA 01 00 40 00 21 3D F8 | + | DA 38 00 00 00 21 3D F8 |
| - | DA 00 00 40 00 21 3D B8 | + | DA 38 00 01 00 21 3D B8 |
| ---- | ---- | ||
| Line 337: | Line 341: | ||
| ==== E0: G_NOOP ==== | ==== E0: G_NOOP ==== | ||
| - | Does nothing. Seemingly different from 00; judging by the names of this opcode and 00, this opcode stalls the RSP, whereas the other stalls the RDP. | + | Does nothing. Seemingly different from 00; judging by the names and position of this opcode and 00, this opcode stalls the RDP, whereas the other stalls the RSP. |
| ''E0 00 00 00 00 00 00 00'' | ''E0 00 00 00 00 00 00 00'' | ||
| Line 359: | Line 363: | ||
| ''E2 00 [<color #ed1c24>ss</color>] [<color #22b14c>nn</color>] [<color #00a2e8>dd dd dd dd</color>]'' | ''E2 00 [<color #ed1c24>ss</color>] [<color #22b14c>nn</color>] [<color #00a2e8>dd dd dd dd</color>]'' | ||
| - | | <color #ed1c24>s</color> | Amount mode-bits are shifted by, or number of LSb of mode bits to be changed | | + | | <color #ed1c24>s</color> | 32 - (Amount mode-bits are shifted by) - (Number of bits affected) | |
| - | | <color #22b14c>n</color> | Number of mode-bits affected | | + | | <color #22b14c>n</color> | (Number of mode-bits affected) - 1 | |
| | <color #00a2e8>d</color> | Mode-bits | | | <color #00a2e8>d</color> | Mode-bits | | ||
| Line 383: | Line 387: | ||
| ''E3 00 [<color #ed1c24>ss</color>] [<color #22b14c>nn</color>] [<color #00a2e8>dd dd dd dd</color>]'' | ''E3 00 [<color #ed1c24>ss</color>] [<color #22b14c>nn</color>] [<color #00a2e8>dd dd dd dd</color>]'' | ||
| - | | <color #ed1c24>s</color> | Amount mode-bits are shifted by, or number of LSb of mode bits to be changed | | + | | <color #ed1c24>s</color> | 32 - (Amount mode-bits are shifted by) - (Number of bits affected) | |
| - | | <color #22b14c>n</color> | Number of mode-bits affected | | + | | <color #22b14c>n</color> | (Number of mode-bits affected) - 1 | |
| | <color #00a2e8>d</color> | Mode-bits | | | <color #00a2e8>d</color> | Mode-bits | | ||
| Line 533: | Line 537: | ||
| Sets the scissoring rectangle. | Sets the scissoring rectangle. | ||
| - | ''ED [<color #00a2e8>xx x</color>][<color #22b14c>y yy</color>] [<color #ff7f27>m</color>]0 [<color #ed1c24>vv v</color>][<color #B755FF>w ww</color>]'' | + | ''ED [<color #00a2e8>xx x</color>][<color #22b14c>y yy</color>] 0[<color #ff7f27>m</color>] [<color #ed1c24>vv v</color>][<color #B755FF>w ww</color>]'' |
| | <color #00a2e8>x</color> | Upper-left X coordinate of rectangle | | | <color #00a2e8>x</color> | Upper-left X coordinate of rectangle | | ||
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| | <color #00a2e8>L</color> | Settings for other mode lower word bits | | | <color #00a2e8>L</color> | Settings for other mode lower word bits | | ||
| - | <color #ff7f27>H</color> is similar to using BA, and <color #00a2e8>L</color> is similar to using B9. | + | <color #ff7f27>H</color> is similar to using E3, and <color #00a2e8>L</color> is similar to using E2. |
| - | The difference from either BA or B9 is that this command sets all the bits in both halves of the RDP word (that is, this opcode has no way of limiting what bits are actually affected). | + | The difference from either E3 or E2 is that this command sets all the bits in both halves of the RDP word (that is, this opcode has no way of limiting what bits are actually affected). |
| The RSP Geometry Mode word bits' parameters can be found [[https://hack64.net/wiki/doku.php?id=rcpstructs#setothermode|under the RCP structs page.]] | The RSP Geometry Mode word bits' parameters can be found [[https://hack64.net/wiki/doku.php?id=rcpstructs#setothermode|under the RCP structs page.]] | ||
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| Sets the texture coordinates and size | Sets the texture coordinates and size | ||
| - | ''F2 00 00 00 00 [<color darkred>WW W</color>][<color darkgreen>H HH</color>]'' | + | ''F2 [<color darkred>SS S</color>][<color darkgreen>T TT</color>] 0[<color #00a2e8>I</color>] [<color purple>WW W</color>][<color darkcyan>H HH</color>]'' |
| + | | <color darkred>SSS</color> | Upper-left corner of texture to load, S-axis | | ||
| + | | <color darkgreen>TTT</color> | Upper-left corner of texture to load, T-axis | | ||
| + | | <color #00a2e8>I</color> | Tile descriptor to load into | | ||
| | <color darkred>W</color> | (width - 1) << 2 | | | <color darkred>W</color> | (width - 1) << 2 | | ||
| | <color darkgreen>H</color> | (height - 1) << 2 | | | <color darkgreen>H</color> | (height - 1) << 2 | | ||
| + | |||
| Examples: | Examples: | ||
f3dex2.1547647427.txt.gz · Last modified: 2019/01/16 14:03 by trenavix