Re-added the stack bounds clamp

5 years ago · 44d584dfdb
4 changed files with 4 additions and 0 deletions
--- a/etc/mkuxn-fast.lua
+++ b/etc/mkuxn-fast.lua
@ -322,6 +322,7 @@ uxn_eval(Uxn *u, Uint16 vec)
 	if(u->dev[0].dat[0xf]) 
 		return 0;
 	u->ram.ptr = vec;
+  if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
 	while(u->ram.ptr) {
 		instr = u->ram.dat[u->ram.ptr++];
 		switch(instr) {
--- a/etc/mkuxn-fast.moon
+++ b/etc/mkuxn-fast.moon
@ -231,6 +231,7 @@ uxn_eval(Uxn *u, Uint16 vec)
 	if(u->dev[0].dat[0xf]) 
 		return 0;
 	u->ram.ptr = vec;
+	if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
 	while(u->ram.ptr) {
 		instr = u->ram.dat[u->ram.ptr++];
 		switch(instr) {
--- a/src/uxn-fast.c
+++ b/src/uxn-fast.c
@ -45,6 +45,7 @@ uxn_eval(Uxn *u, Uint16 vec)
 	if(u->dev[0].dat[0xf]) 
 		return 0;
 	u->ram.ptr = vec;
+	if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
 	while(u->ram.ptr) {
 		instr = u->ram.dat[u->ram.ptr++];
 		switch(instr) {
--- a/src/uxn.c
+++ b/src/uxn.c
@ -125,6 +125,7 @@ uxn_eval(Uxn *u, Uint16 vec)
 	if(u->dev[0].dat[0xf])
 		return 0;
 	u->ram.ptr = vec;
+	if(u->wst.ptr > 0xf8) u->wst.ptr = 0xf8;
 	while(u->ram.ptr) {
 		Uint8 instr = u->ram.dat[u->ram.ptr++];
 		/* Return Mode */