[PATCH] SPARC: add implementation of addr word

[Mark Cave-Ayland]

OpenBSD uses the addr word to retrieve the address of several framebuffer
variables during initialisation. Provide an implementation of addr which
allows OpenBSD to initialise the framebuffer correctly on SPARC32 and SPARC64.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk>
---
 forth/util/util.fs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/forth/util/util.fs b/forth/util/util.fs
index 8247c7d..54dbf91 100644
--- a/forth/util/util.fs
+++ b/forth/util/util.fs
@@ -102,3 +102,18 @@
   2dup " tell" is-relay
   2drop
 ;
+
+\ -------------------------------------------------------------------------
+\ Miscellaneous
+\ -------------------------------------------------------------------------
+
+[IFDEF] CONFIG_SPARC32 1 [ELSE] [IFDEF] CONFIG_SPARC64 1 [ELSE] 0 [THEN] [THEN] [IF]
+
+\ Return the address of a named constant or value
+: addr  ( <word> -- addr )
+  parse-word $find if
+    cell +
+  then
+;
+
+[THEN]
-- 
2.20.1

[NJONGSSI KOUAM Esaïe Ledoux]

please i need documentation, link or many other things because i'm newbie on this
project to contribute on it as developer in C and Assembly ....

[Mark Cave-Ayland]

On 06/07/2020 22:28, NJONGSSI KOUAM Esaïe Ledoux wrote:

  please i need documentation, link or many other things
because i'm newbie on this project to contribute on it as developer in C and Assembly
....
I don't believe that the project has an official TODO list (other than what
people's
time/interest allows), but the first thing to do is to have a read of the basics on
https://www.openfirmware.org/ and decide which architecture you would like to study.
Normally this is influenced by people who want to boot a particular OS under QEMU
which is currently the main user for OpenBIOS for SPARC and PPC32.

The next step is to find or build yourself a suitable cross-compiler if working on
x86 for which there are plenty of guides on the internet such as
https://wiki.osdev.org/GCC_Cross-Compiler and then see if you can checkout the
OpenBIOS code from github and build it successfully.


ATB,

Mark.

[G 3]

On Jul 6, 2020, at 5:28 PM, NJONGSSI KOUAM Esaïe Ledoux wrote:

  please i need documentation, link or many other things
because i'm  
 newbie on this project to contribute on it as developer in C and  
 Assembly ....
 _______________________________________________
 OpenBIOS mailing list -- openbios(a)openbios.org
 To unsubscribe send an email to openbios-leave(a)openbios.org

Forth tutorial
https://www.forth.com/starting-forth/

OpenBIOS site
https://www.openfirmware.info/Welcome_to_OpenBIOS

Open Firmware specification
https://www.openfirmware.info/data/docs/of1275.pdf

Welcome

[NJONGSSI KOUAM Esaïe Ledoux]

thank you very much ... :) :) :)

[Mark Cave-Ayland]

On 02/07/2020 20:42, Mark Cave-Ayland wrote:

  OpenBSD uses the addr word to retrieve the address of
several framebuffer
 variables during initialisation. Provide an implementation of addr which
 allows OpenBSD to initialise the framebuffer correctly on SPARC32 and SPARC64.
 
 Signed-off-by: Mark Cave-Ayland <mark.cave-ayland(a)ilande.co.uk>
 ---
  forth/util/util.fs | 15 +++++++++++++++
  1 file changed, 15 insertions(+)
 
 diff --git a/forth/util/util.fs b/forth/util/util.fs
 index 8247c7d..54dbf91 100644
 --- a/forth/util/util.fs
 +++ b/forth/util/util.fs
 @@ -102,3 +102,18 @@
    2dup " tell" is-relay
    2drop
  ;
 +
 +\ -------------------------------------------------------------------------
 +\ Miscellaneous
 +\ -------------------------------------------------------------------------
 +
 +[IFDEF] CONFIG_SPARC32 1 [ELSE] [IFDEF] CONFIG_SPARC64 1 [ELSE] 0 [THEN] [THEN] [IF]
 +
 +\ Return the address of a named constant or value
 +: addr  ( <word> -- addr )
 +  parse-word $find if
 +    cell +
 +  then
 +;
 +
 +[THEN]
Applied to master.


ATB,

Mark.