~aw

https://alex.flounder.online

software engineer

~aw/3cm

Last active 4 months ago

~aw/misc

Last active 9 months ago

~aw/flounder

Last active 9 months ago

~aw/public-inbox

Last active 10 months ago

~aw/patches

Last active 11 months ago
View more

Recent activity

Re: [PATCH] Fix allocation bug on compilation error 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

On Sat Jun 17, 2023 at 8:38 AM EDT, Virgil Dupras wrote:
> The most straightforward way to go about this isn't to mangle with dictionaries,
> but to overwrite the "abort" alias with "realias".
>
> I also don't understand why you're trying to overload "abort"" rather than
> "abort".

Both of these choices came from me having an incomplete understanding of 
a lot of the foundational words in Dusk. I read a bunch of the 
documentation/code today and I think I have a better understanding of 
the dictionary structure / compiling words. I'll look into sending an 
updated patch soon!

> Do you think you have all details you need to carry on? Don't hesitate to ask

[PATCH] Update 'code' doc 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

Found this a bit unclear, since my understanding is isn't exactly the
same as entry (it does not take a dict param but refers to sysdict)
---
Still learning git-send-email and best practices. I believe that this
should be a comment that doesn't affect the patch. My first version of
this commit had a couple typos, my apologies.

 fs/doc/dict.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/doc/dict.txt b/fs/doc/dict.txt
index 3cb3d79..f19da1c 100644
--- a/fs/doc/dict.txt
+++ b/fs/doc/dict.txt
[message trimmed]

[PATCH 3/3] Add reference to "counted string" 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

---
 fs/doc/usage.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/doc/usage.txt b/fs/doc/usage.txt
index b2ea897..9ab418a 100644
--- a/fs/doc/usage.txt
+++ b/fs/doc/usage.txt
@@ -46,9 +46,10 @@ Dusk has no DEC/HEX mode. Number literals are parsed using a prefix system.

## Strings

A string is an address to an area in memory starting with a length byte followed
by that many bytes. When we refer to a "string", we refer to that address.  For
[message trimmed]

[PATCH 2/3] Clarify null byte escape sequence 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

---
 fs/doc/usage.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/doc/usage.txt b/fs/doc/usage.txt
index aafd043..b2ea897 100644
--- a/fs/doc/usage.txt
+++ b/fs/doc/usage.txt
@@ -68,7 +68,7 @@ character:

\n: newline ($0a)
\r: carriage return ($0d)
\0: 0
\0: null byte (0)
[message trimmed]

[PATCH 1/3] Update 'code' doc 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

Found this a bit unclear, since my understanding is isn't exactly the
same as entry (it does not take a dict param but refers to sysdict
---
 fs/doc/dict.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/doc/dict.txt b/fs/doc/dict.txt
index 3cb3d79..5891ae0 100644
--- a/fs/doc/dict.txt
+++ b/fs/doc/dict.txt
@@ -276,7 +276,7 @@ w>e        w -- e    Yield an entry (linked list pointer) from a word reference.
e>w        e -- w    Yield a word reference (executable) from an entry.
entry      'dict s --
                     Create entry with name s in dictionary 'dict.
[message trimmed]

Re: [PATCH] Fix allocation bug on compilation error 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

On Thu Jun 15, 2023 at 7:12 AM EDT, Virgil Dupras wrote:
> Hello Alex,
>
> Yes, that's a problem, good catch. Ideally, we'd add a kind of "abort hooks"
> system, a chain of words to hook together, a bit like the idle loop (except I
> think in this case we could simply use "chain"), which we call on abort.
> lib/alloc would hook "unlockhere" in there.

Ok, so I have skeched out;

: unlockabort" ' unlockhere ' abort" chain execute ;

What I'm wondering is, how could I make this more generic? I don't know 
enough about the dict internals (in dusk or in forth in general), but

Re: [PATCH] Fix allocation bug on compilation error 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

Ah, I submitted this too soon, before understanding the c compiler 
better. It appears this _err word is defined in each part of the 
compiler, so this would have to be repeated there. Which itself is sort 
of awkward.

Maybe _err could be a shared word that takes a str param? S" egen" _err 


On Wed Jun 14, 2023 at 9:18 PM EDT, alex wennerberg wrote:
> When the c compiler compiles something, if there is some sort of error, running
> the c compiler again resulted in
>   allocating to locked HERE!
>
> This error goes away when running the c compiler again. This is because

[PATCH] Fix allocation bug on compilation error 3 months ago

From alex wennerberg to ~vdupras/duskos-discuss

When the c compiler compiles something, if there is some sort of error, running
the c compiler again resulted in
  allocating to locked HERE!

This error goes away when running the c compiler again. This is because
the allocator has a lock that is still present when the compiler aborts
on _err
---
 fs/comp/c/tok.fs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/comp/c/tok.fs b/fs/comp/c/tok.fs
index ebb6125..eee0c44 100644
--- a/fs/comp/c/tok.fs
[message trimmed]

Re: UF 9 months ago

From alex wennerberg to ~aw/misc

On Mon Dec 12, 2022 at 2:20 AM PST,  wrote:
> Hi, Alex!
>
> Sorry for the delay.

No worries! Always appreciate your help. I'm still shaky on parts of 
forth, I went back to the compiler/interpreter chapters of "starting 
forth" after emailing you.

> `word` + `number` is the way to do it, I would say. Since conversion
> of a string to a number is a basic operation in the outer interpreter
> and I didn't want to introduce two words for this, I settled on the
> version taking a counted string.

Re: UF 9 months ago

From Alex Wennerberg to ~aw/misc

Hi Felix, I have a couple UF questions if you don't mind entertaining 
them.

First, one difference I notice between UF and other forths is there is 
no >number that takes an uncounted string, only a counted string. I am 
wondering what the best way to, e.g, parse a number from input is. EG 
imagine my input is:


foo 5
foo -1

and I want to define "foo" to take the number and do something with it. 
I have tried a few approaches: