well, we could avoid some crashiness by saving/restoring CPU registers

[16.git] / src / lib / modex16.c

diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index ee7f156c0558ebc66cca31e31493d7f06e9224b1..6a5b27994f5549b8c1e80e141fab486627389662 100755 (executable)
--- 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) {
     }\r
 \r
     __asm {\r
+           PUSHF\r
+           PUSH ES\r
+           PUSH AX\r
+           PUSH BX\r
+           PUSH CX\r
+           PUSH DX\r
+           PUSH SI\r
+           PUSH DI\r
                MOV AX, SCREEN_SEG      ; go to the VGA memory\r
                MOV ES, AX\r
                MOV DI, poffset  ; go to the first pixel\r
@@ -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\r
                DEC h\r
                JNZ SCAN_START\r
+           POP DI\r
+           POP SI\r
+           POP DX\r
+           POP CX\r
+           POP BX\r
+           POP AX\r
+           POP ES\r
+           POPF\r
     }\r
 }\r
 \r