Re: [cc65] 6502.h

From: Piotr Fusik (P.Fusik_at_elka.pw.edu.pl)
Date: 2003-01-16 12:06:09

• Previous message: Greg King: "Re: [cc65] POSIX i/o"
• In reply to: Greg King: "Re: [cc65] 6502.h"

On Thu, 16 Jan 2003, Greg King wrote:

> How do the TSX and TXS instructions work when the stack-pointer is 16 bits wide?

They work on its low byte.
TSY and TYS are for the high byte.

Piotr

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• Previous message: Greg King: "Re: [cc65] POSIX i/o"
• In reply to: Greg King: "Re: [cc65] 6502.h"

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