Date   : Thu, 28 Oct 2004 09:49:08 +0100
From   : Richard_Talbot-Watkins@...
Subject: Re: &D00

Andrew W <a.weston2@...> wrote on 27/10/2004 20:41:13:

> Incidentally, was EQUate in BASIC I (I think or is it Model A?) as the
> assembler book I have covering BASIC I does not mention it?

No, EQUB, EQUW, EQUD and EQUS were added in Basic II, along with OPT 4..7,
for assembling code to be run at P% but actually assembled at O%.

In Basic I, the EQUates had to be faked like this:

FOR pass%=0 TO 2 STEP 2
[OPT pass%
.tablelo
 OPT FNequb(addr1 AND 255)
 OPT FNequb(addr2 AND 255)
.tablehi
 OPT FNequb(addr1 DIV 256)
 OPT FNequb(addr2 DIV 256)
.string
 OPT FNequs("Test String"+CHR$0)
]
NEXT
END
:
DEF FNequb(a%)
?P%=a%:P%=P%+1
=pass%
:
DEF FNequw(a%)
!P%=a%:P%=P%+2
=pass%
:
DEF FNequd(a%)
!P%=a%:P%=P%+4
=pass%
:
DEF FNequs(a$)
$P%=a$
P%=P%+LENa$
=pass%




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