X-Git-Url: http://j8takagi.net/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fexec.c;h=3fb2771099964802f38745a35381f47b458f8329;hb=3a3755494c8fe62e90040532927860055ba74b2e;hp=61faee3d1c21c2a00bfb238b15741b3b3b689384;hpb=93f3bbbc043d2883610bd979556e0bae42e5c8b2;p=YACASL2.git

diff --git a/src/exec.c b/src/exec.c
index 61faee3..3fb2771 100644
--- a/src/exec.c
+++ b/src/exec.c
@@ -99,7 +99,7 @@ void svcin()
             --i;
             break;
         }
-        if(sys->cpu->gr[1] + i >= sys->memsize - 1) {
+        if(sys->cpu->gr[1] + i > execptr->end) {
             setcerr(208, NULL);    /* SVC input - memory overflow */
             break;
         }
@@ -118,7 +118,7 @@ void svcout()
     WORD w;
 
     for(i = 0; i < sys->memory[sys->cpu->gr[2]]; i++) {
-        if(sys->cpu->gr[1] + i >= sys->memsize - 1) {
+        if(sys->cpu->gr[1] + i > execptr->end) {
             setcerr(209, NULL);    /* SVC output - memory overflow */
             return;
         }