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BVS: Difference between revisions

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=== External Links ===
=== External Links ===
* [[Eyes & Lichty]] page on BVS: https://archive.org/details/0893037893ProgrammingThe65816/page/n465
* [[Eyes & Lichty]] page 440 on BVS: https://archive.org/details/0893037893ProgrammingThe65816/page/n466
* [[Labiak]] page on BVS: https://archive.org/details/Programming_the_65816/page/n139
* [[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
* [[MCS6500 Manual]] page on BVS: https://archive.org/details/mos_microcomputers_programming_manual/page/n56

Revision as of 06:29, 27 November 2023

Basic Info
Addressing Mode Opcode Length Speed
relative 70 2 bytes 2 cycles*
Flags Affected
N V M X D I Z C
. . . . . . . .

BVS is a 65x instruction that performs a branch if the overflow flag is set.

Cycle Penalties
  • BVS takes one extra cycle if the branch is taken
  • BVS takes another extra cycle if that branch taken crosses a page boundary in emulation mode.

See Also

External Links