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f3dex [2019/01/03 22:53] redetzky [Fast3DEX Display List Commands] fix the same typo but on another page |
f3dex [2019/05/13 07:55] shygoo [ED: G_SETSCISSOR] correct mode field position |
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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 343: | Line 343: | ||
Loads a new 32-bit value data to the location specified by index and offset. | Loads a new 32-bit value data to the location specified by index and offset. | ||
- | ''BC <color #00a2e8>ii</color> <color #22b14c>oo oo</color> <color #A946F2>dd dd dd dd</color>'' | + | ''BC <color #22b14c>oo oo</color> <color #00a2e8>ii</color> <color #A946F2>dd dd dd dd</color>'' |
- | | <color #00a2e8>i</color> | Index into DMEM pointer table(?) | | + | | <color #22b14c>o</color> | Offset from the indexed base address | |
- | | <color #22b14c>o</color> | Offset from the indexed base address(?) | | + | | <color #00a2e8>i</color> | Index into DMEM pointer table | |
| <color #A946F2>d</color> | New 32-bit value | | | <color #A946F2>d</color> | New 32-bit value | | ||
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==== C0: G_NOOP ==== | ==== C0: G_NOOP ==== | ||
- | Does nothing. Seemingly different from 00; this opcode may stall the RDP instead of the RSP, or the other way around, though nothing has been really confirmed. (Judging by gbi.h from F3DEX) | + | 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. |
''C0 00 00 00 00 00 00 00'' | ''C0 00 00 00 00 00 00 00'' | ||
Line 525: | Line 525: | ||
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 | |