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BCS: Difference between revisions
From SnesLab
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|'''Speed''' | |'''Speed''' | ||
|+ | |+ | ||
| | |[[Program Counter Relative]] | ||
|B0 | |B0 | ||
|2 byte | |2 byte | ||
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!colspan="9"|Flags Affected | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|N | |[[Negative Flag|N]] | ||
|V | |[[Overflow Flag|V]] | ||
|M | |[[M Flag|M]] | ||
|X | |[[X Flag|X]] | ||
|D | |[[Decimal Flag|D]] | ||
|I | |[[I Flag|I]] | ||
|Z | |[[Zero Flag|Z]] | ||
|C | |[[Carry Flag|C]] | ||
|+ | |+ | ||
|. | |. | ||
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''' | '''BCS''' (Branch if Carry Set) is a 65x instruction that performs a jump if the [[carry flag]] is set. An alternate mnemonic is "BGE." | ||
=== See Also === | === See Also === | ||
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=== External Links === | === External Links === | ||
* [[Eyes & Lichty]] page 429, on BCS: https://archive.org/details/0893037893ProgrammingThe65816/page/n455 | * [[Eyes & Lichty]] page 429, on BCS: https://archive.org/details/0893037893ProgrammingThe65816/page/n455 | ||
* [[Labiak]] page on BCS: https://archive.org/details/Programming_the_65816/page/n129 | * [[Labiak]] page 119 on BCS: https://archive.org/details/Programming_the_65816/page/n129 | ||
* [[MCS6500 Manual]] page on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | * [[MCS6500 Manual]] page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | ||
* [[Carr]] page on BCS: https://archive.org/details/6502UsersManual/page/n261 | * [[Carr]] page 248 on BCS: https://archive.org/details/6502UsersManual/page/n261 | ||
* [[Leventhal]] page on BCS: https://archive.org/details/6502-assembly-language-programming/page/n93 | * [[Leventhal]] page 3-44 on BCS: https://archive.org/details/6502-assembly-language-programming/page/n93 | ||
* snes9x implementation of BCS:https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365 | * snes9x implementation of BCS:https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365 | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
[[Category:Conditional Branches]] | |||
[[Category:Two-byte Instructions]] | |||
[[Category:Two-cycle Instructions]] | |||
Latest revision as of 11:47, 14 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | B0 | 2 byte | 2 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
BCS (Branch if Carry Set) is a 65x instruction that performs a jump if the carry flag is set. An alternate mnemonic is "BGE."
See Also
External Links
- Eyes & Lichty page 429, on BCS: https://archive.org/details/0893037893ProgrammingThe65816/page/n455
- Labiak page 119 on BCS: https://archive.org/details/Programming_the_65816/page/n129
- MCS6500 Manual page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55
- Carr page 248 on BCS: https://archive.org/details/6502UsersManual/page/n261
- Leventhal page 3-44 on BCS: https://archive.org/details/6502-assembly-language-programming/page/n93
- snes9x implementation of BCS:https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365