mtx: Initialize the VDP and use it for vt work

Currently this is only half working - we init the vdp but have no font. We
need to upload our own font as CP/M or other boot code might not be using
the VDP display.

diff --git a/Kernel/platform-mtx/mtx.s b/Kernel/platform-mtx/mtx.s
index bf73df8..d8fbcf1 100644 (file)
--- a/Kernel/platform-mtx/mtx.s
+++ b/Kernel/platform-mtx/mtx.s
@@ -1,12 +1,5 @@
 ;
-;      Z80Pack hardware support
-;
-;
-;      This goes straight after udata for common. Because of that the first
-;      256 bytes get swapped to and from disk with the uarea (512 byte disk
-;      blocks). This isn't a problem but don't put any variables in here.
-;
-;      If you make this module any shorter, check what follows next
+;      MTX512 hardware support
 ;
 
 
@@ -42,6 +35,9 @@
            .globl nmi_handler
             .globl interrupt_handler
 
+           .globl vdpinit
+           .globl _vtinit
+
             .globl outcharhex
             .globl outhl, outde, outbc
             .globl outnewline
@@ -88,6 +84,9 @@ init_hardware:
             call _program_vectors
             pop hl
 
+           ; Program the video engine
+           call vdpinit
+
            ; FIXME: set up interrupt timer on the CTC
            ; 08 is channel 0, which is input for vdp
             ; 09 is channel 1, output for DART ser 0 } fed 4MHz/13
@@ -96,6 +95,9 @@ init_hardware:
            ; 0C-0F are A data, B data, A ctrl, B ctrl 
 
             im 1 ; set CPU interrupt mode
+
+           call _vtinit                ; init the console video
+
             ret
 
 _sil_memcpy: