[OpenBIOS] [PATCH] Implement print-resolutions word

[Programmingkid]

The print-resolutions word prints all the resolutions in the QEMU,VGA node's
fb-modes property.

Signed-off-by: John Arbuckle <programmingkidx at gmail.com>
---
This patch may depend on the add-resolutions patch.

 arch/ppc/qemu/qemu.fs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/ppc/qemu/qemu.fs b/arch/ppc/qemu/qemu.fs
index 10df618..745f8c8 100644
--- a/arch/ppc/qemu/qemu.fs
+++ b/arch/ppc/qemu/qemu.fs
@@ -206,3 +206,22 @@ variable keyboard-phandle 0 keyboard-phandle !
     fb-mode-addr fb-mode-len
     " fb-modes" property
 ;
+
+\ print all of the resolutions in the QEMU,VGA node
+: print-resolutions { ; fb-mode-addr fb-mode-len }
+    decimal
+    " /pci/QEMU,VGA" find-device  ( -- )
+    " fb-modes" active-package get-package-property
+    abort" Could not find fb-modes property"
+    -> fb-mode-len
+    -> fb-mode-addr 
+
+    fb-mode-addr fb-mode-len + 4 -  \ limit
+    fb-mode-addr                    \ initial value
+    cr ." Resolutions:" cr
+    do
+        I aligned @ .               \ print width
+        ." x "                      \ print x
+        I 1+ aligned @ . cr         \ print height
+    8 +loop
+;
-- 
2.7.2