Re: Bliss

On 7/26/2024 7:51 PM, Arne Vajhøj wrote:

On 7/26/2024 3:42 PM, John Reagan wrote:

On 7/25/2024 10:10 PM, Lawrence D'Oliveiro wrote:

Currently working my way through AA_H275C-TK (1983 edition). Adapted
this example from page 15-9:
>
     MODULE quote_test_1 =
     BEGIN
         OWN x;
         LITERAL mark = 4;
         MACRO m = mark + %UNQUOTE mark %;
>
         GLOBAL ROUTINE doit : NOVALUE =
         BEGIN
             LITERAL mark = 5;
             x = m;
         END;
>
     END ELUDOM
>
When I look at the generated assembler
>
     doit:
         ...
         movq    $10, x(%rip)
         retq
>
That value should be 9, not 10.

>
What compiler is that from?  That isn't even PIC code.  And the $10 in the output is hex 10.

 Matt Madisons open source Bliss compiler running on
Linux.
 So not one of your compilers. :-)
 Arne
 

Ah, that makes sense.  My BLISS would generate
DOIT::
00000000:  pushq   %rbp                     # 000007
00000001:  movq    %rsp,%rbp
00000004:  movq    X@GOTPCREL(%rip),%rax    # 000010
0000000B:  movl    $00000009,(%rax)
00000011:  popq    %rbp                     # 000011
00000012:  retq