We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

MUL (SPC700): Difference between revisions

From SnesLab
Jump to: navigation, search
(→‎External Links: added anomie link)
(made flags affected more prominent)
 
(One intermediate revision by the same user not shown)
Line 25: Line 25:
|[[Carry Flag|C]]
|[[Carry Flag|C]]
|+
|+
|
|N
|.
|.
|.
|.
Line 31: Line 31:
|.
|.
|.
|.
|
|Z
|.
|.
|}
|}
Line 47: Line 47:
* [[SBC (SPC700)]]
* [[SBC (SPC700)]]
* [[MULT]]
* [[MULT]]
* [[UMULT]]


=== External Links ===
=== External Links ===

Latest revision as of 14:06, 30 July 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 1) CF 1 byte 9 cycles
Flags Affected
N V P B H I Z C
N . . . . . Z .

MUL is an SPC700 instruction that multiplies the value in the Y index register by the value in the accumulator and stores the product in YA. The high byte of the product is stored in Y and the low byte is stored in A.[2]

Syntax

MUL

See Also

External Links

  1. Official Super Nintendo development manual on MUL: Table C-13, Appendix C-8 of Book I
  2. https://forums.nesdev.org/viewtopic.php?p=141221#p141221
  3. https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L510