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

CMP: Difference between revisions

From SnesLab
Jump to: navigation, search
(clobbered -> affected)
(linkify immediate and absolute)
Line 7: Line 7:
|'''Speed'''
|'''Speed'''
|+
|+
|immediate
|[[Immediate]]
|C9
|C9
|2 bytes
|2 bytes
|2 cycles
|2 cycles
|+
|+
|absolute
|[[Absolute]]
|CD
|CD
|3 bytes
|3 bytes

Revision as of 04:14, 20 November 2023

Basic Info
Addressing Mode Opcode Length Speed
Immediate C9 2 bytes 2 cycles
Absolute CD 3 bytes 4 cycles
absolute long CF 4 bytes 5 cycles
direct page C5 2 bytes 3 cycles
direct page indirect D2 2 bytes 5 cycles
direct page indirect long C7 2 bytes 6 cycles
absolute indexed by X DD 3 bytes 4 cycles
absolute long indexed by X DF 4 bytes 5 cycles
absolute indexed by Y D9 3 bytes 4 cycles
direct page indexed by X D5 2 bytes 4 cycles
direct page indexed indirect by X C1 2 bytes 6 cycles
direct page indirect indexed by Y D1 2 bytes 5 cycles
direct page indirect long indexed by Y D7 2 bytes 6 cycles
stack relative C3 2 bytes 4 cycles
stack relative indirect indexed by Y D3 2 bytes 7 cycles
Flags Affected
N V M X D I Z C
. . . . .

CMP (Compare) is a 65x instruction that compares the value of the accumulator.

See Also

External Links