; ; 2019-12-22, Greg King ; ; unsigned char fastcall vpeek (unsigned long addr); ; /* Get a byte from a location in VERA's internal address space. */ ; .export _vpeek .import vaddr0 .include "cx16.inc" _vpeek: jsr vaddr0 ; put VERA's address ldx #>$0000 lda VERA::DATA0 ; read VERA port zero rts