From: Alan Cox <alan@linux.intel.com>
Date: Fri, 20 Apr 2018 12:32:09 +0000 (+0100)
Subject: ubee: fix up the display code bugs
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=8c856859b767f5703a53430dcd11561fafe02417;p=FUZIX.git

ubee: fix up the display code bugs

We still don't do all the scrolling right but this will do for testing other
bits of the code
---

diff --git a/Kernel/platform-ubee/ubee.s b/Kernel/platform-ubee/ubee.s
index 5022a5d5..b0dd2e8f 100644
--- a/Kernel/platform-ubee/ubee.s
+++ b/Kernel/platform-ubee/ubee.s
@@ -626,7 +626,7 @@ popout:
 ;
 _scroll_up:
 	    call ___hard_di
-	    push af
+	    push hl
 	    ld a, (mapreg)
 	    push af
 	    and #0xF7		; enable video memory
@@ -638,7 +638,7 @@ _scroll_up:
 	    ld de, (_vtwidth)
 	    add hl,de
 	    pop de
-	    ld bc,#4016		; FIXME compute for variable width
+	    ld bc,#1920		; FIXME
 	    ldir
 unmap_out:
 	    ; now put the RAM back
@@ -650,7 +650,7 @@ unmap_out:
 
 _scroll_down:
 	    call ___hard_di
-	    push af
+	    push hl
 	    ld a, (mapreg)
 	    push af
 	    and #0xF7		; enable video memory
@@ -675,7 +675,7 @@ _scroll_down:
 ;
 _vwrite:
 	    call ___hard_di
-	    push af
+	    push hl
 	    ld a, (mapreg)
 	    push af
 	    and #0xF7		; enable video memory
@@ -689,8 +689,8 @@ _vwrite:
 	    or #0x80
 	    ld h,a
 	    ld de,(_vtattrib)
-	    ld a,(_vtchar)
 vloop:
+	    ld a,(_vtchar)
 	    ld (hl),a		; character
 	    ld a,#0x90		; attribute RAM / 0x90 if we enable PCG extended
 _patch_std: