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STZ: Difference between revisions
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'''STZ''' (Store Zero) is a [[65c816]] instruction that zeros out memory. | '''STZ''' (Store Zero) is a [[65c816]] instruction that zeros out memory. | ||
{| class="wikitable" style="width:30%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Addressing Mode''' | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''Speed''' | |||
|+ | |||
|absolute | |||
|9C | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page | |||
|64 | |||
|2 bytes | |||
|3 cycles | |||
|+ | |||
|absolute indexed X | |||
|9E | |||
|3 bytes | |||
|5 cycles | |||
|+ | |||
|direct page indexed X | |||
|74 | |||
|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 17:50, 1 May 2023
STZ (Store Zero) is a 65c816 instruction that zeros out memory.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| absolute | 9C | 3 bytes | 4 cycles | ||||
| direct page | 64 | 2 bytes | 3 cycles | ||||
| absolute indexed X | 9E | 3 bytes | 5 cycles | ||||
| direct page indexed X | 74 | 2 bytes | 4 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |