FF7/Field/Script/Opcodes/D5 COS - Revision history

Dangarfield at 13:56, 16 September 2020

2020-09-16T13:56:46Z

Dangarfield at 13:56, 16 September 2020

2020-09-16T13:56:36Z

Dangarfield: Creation of COS page

2020-09-16T13:46:54Z

Creation of COS page

New page

* Opcode: '''0xD5'''
* Short name: '''COS'''
* Long name: COS Calculation

==== Memory layout ====
{| border="1" cellspacing="1" cellpadding="3" style="border: 1px solid black; border-collapse: collapse;"
! width="40" | 0xD5
! width="50" | ''B1 / B2''
! width="40" | ''B3 / B4''
! width="40" | ''D''
! width="40" | ''M''
! width="40" | ''A''
! width="40" | ''C''
|}

==== Arguments ====

* '''const Bit[4]''' ''B1'': Destination bank.
* '''const Bit[4]''' ''B2'': Bank to retrieve ''M'', or zero if ''M'' is specified as a literal value.
* '''const Bit[4]''' ''B3'': Bank to retrieve ''A'', or zero if ''A'' is specified as a literal value.
* '''const Bit[4]''' ''B4'': Bank to retrieve ''S'', or zero if ''S'' is specified as a literal value.
* '''const UByte''' ''D'': Destination address.
* '''const UByte''' ''M'': Multiplicand, or address to retrieve value if ''B2'' is non-zero.
* '''const UByte''' ''A'': Addition, or address to retrieve value if ''B3'' is non-zero.
* '''const UByte''' ''C'': Variable for cos angle, or source address to retrieve value if ''B4'' is non-zero.

==== Description ====

Var[B1][D] = ( ( Math.cos(Var[B4][C]) * M) + A) >> 12

Creates a variable from the another variable, with COS, a multiplicand and an addition factor

@@ Line 11: / Line 11: @@
 ! width="40" | ''M''
 ! width="40" | ''A''
-! width="40" | ''C''
+! width="40" | ''S''
 |}

@@ Line 23: / Line 23: @@
 * '''const UByte''' ''M'': Multiplicand, or address to retrieve value if ''B2'' is non-zero.
 * '''const UByte''' ''A'': Addition, or address to retrieve value if ''B3'' is non-zero.
-* '''const UByte''' ''C'': Variable for cos angle, or source address to retrieve value if ''B4'' is non-zero.
+* '''const UByte''' ''S'': Variable for cos angle, or source address to retrieve value if ''B4'' is non-zero.
 ==== Description ====
-  Var[B1][D] = ( ( Math.cos(Var[B4][C]) * M) + A) >> 12
+  Var[B1][D] = ( ( Math.cos(Var[B4][S]) * M) + A) >> 12
 Creates a variable from the another variable, with COS, a multiplicand and an addition factor