We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
SEP: Difference between revisions
From SnesLab
(only direct way according to E&L) |
(→External Links: numbered refs) |
||
Line 64: | Line 64: | ||
=== External Links === | === External Links === | ||
# [[Eyes & Lichty]] page 502, on SEP: https://archive.org/details/0893037893ProgrammingThe65816/page/n528 | |||
# [[Labiak]] page 183 on SEP: https://archive.org/details/Programming_the_65816/page/n193 | |||
# snes9x implementation of SEP: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L3203 | |||
# undisbeliever on SEP: https://undisbeliever.net/snesdev/65816-opcodes.html#sep-set-status-bits | |||
[[Category:ASM]] | [[Category:ASM]] |
Revision as of 03:44, 8 July 2024
Basic Info | |||||||
---|---|---|---|---|---|---|---|
Addressing Mode | Opcode | Length | Speed | ||||
Immediate | E2 | 2 bytes | 3 cycles |
Flags Affected | ||||||||
---|---|---|---|---|---|---|---|---|
N | V | M | X | D | I | Z | C | |
emulation mode | . | . | ||||||
native mode |
SEP (Set Status Bits) is a 65c816 instruction that sets bits in the status register that correspond to set bits in the operand.
SEP is the only way to set the m and x flags directly (but PLP and RTI may set them too.)
Syntax
SEP #nvmxdizc
See Also
External Links
- Eyes & Lichty page 502, on SEP: https://archive.org/details/0893037893ProgrammingThe65816/page/n528
- Labiak page 183 on SEP: https://archive.org/details/Programming_the_65816/page/n193
- snes9x implementation of SEP: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L3203
- undisbeliever on SEP: https://undisbeliever.net/snesdev/65816-opcodes.html#sep-set-status-bits