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BVS: Difference between revisions
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'''BVS''' is a 65x instruction that performs a branch if the [[overflow flag]] is set. | '''BVS''' is a 65x instruction that performs a branch if the [[overflow flag]] is set. | ||
{| class="wikitable" style="float:right;clear:right;width:30%" | |||
!colspan="8"|Basic Info | |||
|+ | |||
|'''Addressing Mode''' | |||
|'''Opcode''' | |||
|'''Length''' | |||
|'''Speed''' | |||
|+ | |||
| | |||
|70 | |||
|2 bytes | |||
|2 cycles | |||
|} | |||
{| class="wikitable" style="float:right;clear:right;width:30%" | {| class="wikitable" style="float:right;clear:right;width:30%" | ||
Revision as of 20:56, 17 May 2023
BVS is a 65x instruction that performs a branch if the overflow flag is set.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| 70 | 2 bytes | 2 cycles | |||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
External Links
- Eyes & Lichty page on BVS: https://archive.org/details/0893037893ProgrammingThe65816/page/n465
- Labiak page on BVS: https://archive.org/details/Programming_the_65816/page/n139
- MCS6500 Manual page on BVS: https://archive.org/details/mos_microcomputers_programming_manual/page/n56
- Carr page on BVS: https://archive.org/details/6502UsersManual/page/n266
- Leventhal page on BVS: https://archive.org/details/6502-assembly-language-programming/page/n100
- snes9x implementation of BVS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1400