DSP1/Project: Difference between revisions

Latest revision as of 05:30, 10 January 2024


Basic Info
Opcode	06
Speed	627 cycles 82.5 μs

Project is a DSP1 command that calculates where an object in 3D space should appear on the screen.

video of rings in Pilotwings rendered using the help of the Project command: https://youtu.be/YmEKjqgEGpE?t=894

@@ Line 1: / Line 1: @@
-'''Project''' is a DSP1 command.
+{| class="wikitable" style="float:right;clear:right;width:15%"
+!colspan="8"|Basic Info
+|+
+|'''Opcode'''
+|06
+|+
+|'''Speed'''
+|627 cycles
+.5 μs
+|}
+'''Project''' is a [[DSP1]] command that calculates where an object in 3D space should appear on the screen.
+=== Input Parameters ===
+* '''X''' is a coordinate
+* '''Y''' is a coordinate
+* '''Z''' is a coordinate
+=== Ouptut Parameters ===
+* '''H''' is the horizontal screen coordinate
+* '''V''' is the vertical screen coordinate
+* '''M''' is the enlargement ratio
 === References ===
-* https://archive.org/details/SNESDevManual/book2/page/n308
+* subparagraph 5.4.3 on [https://archive.org/details/SNESDevManual/book2/page/n308 page 3-5-18 of Book II] of the official Super Nintendo development manual
+* https://github.com/bsnes-emu/bsnes/blob/master/bsnes/sfc/coprocessor/dsp1/dsp1emu.cpp#L1123
+=== External Links ===
+* video of rings in ''Pilotwings'' rendered using the help of the Project command: https://youtu.be/YmEKjqgEGpE?t=894
+[[Category:DSP1]]
+[[Category:Projection Calculation Commands]]