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BIT: Difference between revisions
From SnesLab
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'''BIT''' is a 65x instruction that performs a logical AND operation between the [[accumulator]] and memory without storing the conjunction. | '''BIT''' is a 65x instruction that performs a logical AND operation between the [[accumulator]] and memory without storing the conjunction. | ||
{| class="wikitable" style="float:right;clear:right;width:30%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Addressing Mode''' | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''Speed''' | |||
|+ | |||
|immediate | |||
|89 | |||
|2 bytes | |||
|2 cycles | |||
|+ | |||
|absolute | |||
|2C | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page | |||
|24 | |||
|2 bytes | |||
|3 cycles | |||
|+ | |||
|absolute indexed X | |||
|3C | |||
|3 bytes | |||
|4 cycles | |||
|+ | |||
|direct page indexed X | |||
|34 | |||
|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 18:04, 1 May 2023
BIT is a 65x instruction that performs a logical AND operation between the accumulator and memory without storing the conjunction.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| immediate | 89 | 2 bytes | 2 cycles | ||||
| absolute | 2C | 3 bytes | 4 cycles | ||||
| direct page | 24 | 2 bytes | 3 cycles | ||||
| absolute indexed X | 3C | 3 bytes | 4 cycles | ||||
| direct page indexed X | 34 | 2 bytes | 4 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | ||||