From: Jonathan Campbell <jonathan@castus.tv>
Date: Thu, 21 Apr 2016 13:59:46 +0000 (-0700)
Subject: save/restore AX/BX when calling BIOS to get ROM font.
X-Git-Url: http://4ch.mooo.com/gitweb/?p=16.git;a=commitdiff_plain;h=734addea4c40d2e7fb6470bdf51ce96343a25e59

save/restore AX/BX when calling BIOS to get ROM font.
---

diff --git a/src/lib/16text.c b/src/lib/16text.c
index 95b307ef..81b71d98 100755
--- a/src/lib/16text.c
+++ b/src/lib/16text.c
@@ -31,6 +31,8 @@ static void getRomFontAddr(char fontNum, int index) {
     word fontOff;
 
     __asm {
+	        PUSH AX
+	        PUSH BX
 		PUSH BP
 		MOV AX, 0x1130		;I can haz font info plz?
 		MOV BH, fontNum         ;  where ur fontNum
@@ -40,6 +42,8 @@ static void getRomFontAddr(char fontNum, int index) {
 		POP BP			;u can haz ur frame back!
 		MOV fontSeg, AX		;Storage
 		MOV fontOff, BX		;Storage
+		POP BX
+		POP AX
     }
     romFonts[index].seg = fontSeg;
     romFonts[index].off = fontOff;