We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
GETBH (Super FX): Difference between revisions
From SnesLab
(of the 3 types of implied 1 is the closest) |
(linkify ROM buffer) |
||
| Line 39: | Line 39: | ||
'''GETBH''' (Get Byte High) is a [[Super FX]] instruction that loads one byte from the [[ROM buffer]] into the high byte of the [[destination register]] and the low byte of the [[source register]] into the low byte of the destination register. | '''GETBH''' (Get Byte High) is a [[Super FX]] instruction that loads one byte from the [[ROM buffer]] into the high byte of the [[destination register]] and the low byte of the [[source register]] into the low byte of the destination register. | ||
The reason the cycle times can vary is because of the ROM buffer. | The reason the cycle times can vary is because of the [[ROM buffer]]. | ||
=== See Also === | === See Also === | ||
Revision as of 12:03, 3 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 3DEF | 2 bytes | 6 to 10 cycles | 6 to 9 cycles | 2 to 6 cycle | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
GETBH (Get Byte High) is a Super FX instruction that loads one byte from the ROM buffer into the high byte of the destination register and the low byte of the source register into the low byte of the destination register.
The reason the cycle times can vary is because of the ROM buffer.
See Also
External Links
- Official Super Nintendo development manual on GETBH: 9.36 on Page 2-9-51 of Book II
- example: page 2-9-52 of Book II, lbid