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cpu pms150
immval equ -1
memadr equ 0x25,data
ioadr sfr 0x1e
; immediate values: either explicit with # prefix,
; or implicit with symbol from nameless segment
mov a,#-1
mov a,-1
mov a,#0x80
mov a,0x80
mov a,immval
mov a,#immval
; usage of [] enforces data address, or implicit usage by symbol type
mov a,memadr
mov a,[0x25]
mov a,[memadr]
mov a,3+memadr
mov a,memadr+3
mov a,3[memadr]
mov a,memadr[3]
; similar for I/O address
mov a,ioadr
mov a,io(0x1e)
mov a,io(ioadr)
mov a,io(0x1e+1)
mov a,io(ioadr+1)
mov a,io(1+ioadr)