From: Jonathan Campbell <jonathan@castus.tv>
Date: Fri, 6 May 2016 01:15:22 +0000 (-0700)
Subject: well, we could avoid some crashiness by saving/restoring CPU registers
X-Git-Url: http://4ch.mooo.com/gitweb/?a=commitdiff_plain;h=ab7178cd4cfa5f75d0388d0322db7512bc9a6f20;p=16.git

well, we could avoid some crashiness by saving/restoring CPU registers
in modexClearRegion.
---

diff --git a/pcx2vrl b/pcx2vrl
index bd947e55..06179c75 100755
Binary files a/pcx2vrl and b/pcx2vrl differ
diff --git a/pcxsscut b/pcxsscut
index 1deec74d..2ce56d28 100755
Binary files a/pcxsscut and b/pcxsscut differ
diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index ee7f156c..6a5b2799 100755
--- a/src/lib/modex16.c
+++ b/src/lib/modex16.c
@@ -324,6 +324,14 @@ modexClearRegion(page_t *page, int x, int y, int w, int h, byte  color) {
     }
 
     __asm {
+	    PUSHF
+	    PUSH ES
+	    PUSH AX
+	    PUSH BX
+	    PUSH CX
+	    PUSH DX
+	    PUSH SI
+	    PUSH DI
 		MOV AX, SCREEN_SEG      ; go to the VGA memory
 		MOV ES, AX
 		MOV DI, poffset	 ; go to the first pixel
@@ -357,6 +365,14 @@ modexClearRegion(page_t *page, int x, int y, int w, int h, byte  color) {
 		ADD DI, nextRow	 ; go to the next row
 		DEC h
 		JNZ SCAN_START
+	    POP DI
+	    POP SI
+	    POP DX
+	    POP CX
+	    POP BX
+	    POP AX
+	    POP ES
+	    POPF
     }
 }
 
diff --git a/vrl2vrs b/vrl2vrs
index b67956b7..cee2d1d5 100755
Binary files a/vrl2vrs and b/vrl2vrs differ
diff --git a/vrsdump b/vrsdump
index dbaba30e..a75a903a 100755
Binary files a/vrsdump and b/vrsdump differ