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STY: Difference between revisions
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'''STY''' (Store Y) is a 65x instruction that stores the value of the [[Y index register]]. | '''STY''' (Store Y) is a 65x instruction that stores the value of the [[Y index register]]. | ||
{| class="wikitable" style="width:30%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Addressing Mode''' | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''Speed''' | |||
|+ | |||
|absolute | |||
|8C | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page | |||
|84 | |||
|2 bytes | |||
|3 cycles | |||
|+ | |||
|direct page indexed Y | |||
|96 | |||
|2 bytes | |||
|4 cycles | |||
|} | |||
{| class="wikitable" style="float:right;clear:right;width:30%" | {| class="wikitable" style="float:right;clear:right;width:30%" | ||
Revision as of 17:48, 1 May 2023
STY (Store Y) is a 65x instruction that stores the value of the Y index register.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| absolute | 8C | 3 bytes | 4 cycles | ||||
| direct page | 84 | 2 bytes | 3 cycles | ||||
| direct page indexed Y | 96 | 2 bytes | 4 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |