In SX Microcontrollers, SX/B Compiler and SX-Key Tool, g_daubach wrote:

Spiros,

it is not fully clear to me if you want to re-define a port pin at run-time, or at assembly-time.

SASM accepts "EQU" and "=" for defining constants, so at the first glance,

led1 EQU RA.0  and  led1 = RA.0

seem to have the same effect.

The difference is that a constant defined with an "=" can be re-assigned at another location in the source code. When you try the same with "EQU", SASM will flag an error.

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