25 Jan
2023
25 Jan
'23
12:39 p.m.
On 2023-01-24 10:49 p.m., Sellam Abraham via cctalk wrote:
On Tue, Jan 24, 2023 at 6:41 PM Steve Lewis via cctalk
<
cctalk(a)classiccmp.org> wrote:
I some how like meta II, better than this new stuff.
Cards in,Cards out.
Needed to tweek my assembler on the home brew computer
to handle local variables.
!int g
g rs 4
c rs 4
! foo-bar(int a,b)
! int c; /* local */
! begin
.local
a: rs 4
b: rs 4
.args
c rs 4
foo-bar:
lea s s - _local_
! c = a + b - g
ld r1 a
add r1 b
sub r1 g
st r1 c
! return c
ld r1 c
lea s s _local_
ret
lea s s _local
ret
! end
.global
Did any assembler for the old machines handle local variables
or had macros to do the same thing?
Ben.
BTW, I've wondered if some form of
stenography could be used for software
development. In my mind, it would make sense to just program directly in
a kind of Abstract Syntax Tree (AST) from the beginning - why bother with
all the syntaxic sugar and peddling ascii text characters around a file to
form a program. So now I wonder if "building" a program using an AST
might be possible in VR.. you "grab" a FOR loop virtually from a box on the
left, add it to your program tree, and build out from there decorating the
tree....
Are you familiar with Google Scratch?
https://scratch.mit.edu/
Add the VR interface and you basically have what you describe.
Sellam