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LDX: Difference between revisions

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(→‎External Links: added MCS6500 link)
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* [[Labiak]] page 150 on LDX: https://archive.org/details/Programming_the_65816/page/n160
* [[Labiak]] page 150 on LDX: https://archive.org/details/Programming_the_65816/page/n160
* [[MCS6500 Manual]] page 96 on LDX: https://archive.org/details/mos_microcomputers_programming_manual/page/n114
* [[MCS6500 Manual]] page 96 on LDX: https://archive.org/details/mos_microcomputers_programming_manual/page/n114
* https://archive.org/details/mos_microcomputers_programming_manual/page/n219, lbid.
* [[Carr]] page 264 on LDX: https://archive.org/details/6502UsersManual/page/n277
* [[Carr]] page 264 on LDX: https://archive.org/details/6502UsersManual/page/n277
* [[Leventhal]] page 3-72 on LDX: https://archive.org/details/6502-assembly-language-programming/page/n121
* [[Leventhal]] page 3-72 on LDX: https://archive.org/details/6502-assembly-language-programming/page/n121

Revision as of 11:25, 19 December 2023

Basic Info
Addressing Mode Opcode Length Speed
Immediate A2 2 bytes* 2 cycles*
Absolute AE 3 bytes 4 cycles*
Direct Page A6 2 bytes 3 cycles*
absolute indexed Y BE 3 bytes 4 cycles*
direct page indexed Y B6 2 bytes 4 cycles*
Flags Affected
N V M X D I Z C
. . . . . .

LDX (Load X) is a 65x instruction that loads the X index register. In immediate addressing only, LDX is a total of 3 bytes long when the index registers are 16 bits wide.

Cycle Penalties

See Also

External Links