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NOT1 (SPC700): Difference between revisions

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'''NOT1''' is an [[SPC700]] instruction that performs a complement of a bit.  The low 13 bits of the operand specify an absolute address.  The high 3 bits of the operand specify which bit at that absolute address.
'''NOT1''' is an [[SPC700]] instruction that flips a bit.  The low 13 bits of the operand specify an absolute address.  The high 3 bits of the operand specify which bit at that absolute address.  The bit flipped can live at any [[ARAM]] address from 0000h to 1fffh.


No flags are affected.
No flags are affected.
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* Official Nintendo documentation on NOT1: Table C-18 in [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I]
* Official Nintendo documentation on NOT1: Table C-18 in [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I]
* subparagraph 8.2.3.3 of [https://archive.org/details/SNESDevManual/book1/page/n186 page 3-8-8], lbid.
* subparagraph 8.2.3.3 of [https://archive.org/details/SNESDevManual/book1/page/n186 page 3-8-8], lbid.
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L514


[[Category:ASM]]
[[Category:ASM]]

Latest revision as of 21:25, 13 July 2024

Basic Info
Addressing Mode Opcode Length Speed
Absolute Boolean Bit EA 3 bytes 5 cycles
Flags Affected
N V P B H I Z C
. . . . . . . .

NOT1 is an SPC700 instruction that flips a bit. The low 13 bits of the operand specify an absolute address. The high 3 bits of the operand specify which bit at that absolute address. The bit flipped can live at any ARAM address from 0000h to 1fffh.

No flags are affected.

Syntax

NOT1 mem. bit

See Also

External Links