We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

STP: Difference between revisions

From SnesLab
Jump to: navigation, search
(note about mis-expansion)
(added E&L page)
Line 39: Line 39:
[[Category: ASM]]
[[Category: ASM]]
[[Category:65c02 additions]]
[[Category:65c02 additions]]
=== External Links ===
* [[Eyes & Lichty]] page on STP: https://archive.org/details/0893037893ProgrammingThe65816/page/n530


=== References ===
=== References ===
* [1] Although "Stop The Processor" fits, all the letters in this mnemonic are from the word "stop."  See row 58 of Table 5-1, "Instruction Set Table" on Page 21 of the official 65c02 datasheet: https://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf
* [1] Although "Stop The Processor" fits, all the letters in this mnemonic are from the word "stop."  See row 58 of Table 5-1, "Instruction Set Table" on Page 21 of the official 65c02 datasheet: https://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf

Revision as of 22:57, 15 May 2023

STP (SToP-the-clock)[1] is an instruction that halts the CPU, putting it into a low power state until it is reset. The PHI2 clock is held high.

Basic Info
Addressing Mode Opcode Length Speed
implied DB 1 byte 3 cycles
Flags Clobbered
N V M X D I Z C
. . . . . . . .

External Links

References