diff --git a/pc/instrs/INSTRS b/pc/instrs/INSTRS
index 7f59214..c4f7fe2 100644
--- a/pc/instrs/INSTRS
+++ b/pc/instrs/INSTRS
@@ -185,28 +185,22 @@ cmulnz i
 # rax = rax / $0
 div r
 div i
-
 cdivz r
 cdivz i
-
 cdivnz r
 cdivnz i
 
 inc r
 inc m
-
 cincz r
 cincz m
-
 cincnz r
 cincnz m
 
 dec r
 dec m
-
 cdecz r
 cdecz m
-
 cdecnz r
 cdecnz m
 
@@ -265,10 +259,8 @@ jcxnz i
 
 loop r
 loop i
-
 cloopz r
 cloopz i
-
 cloopnz r
 cloopnz i
 
@@ -282,14 +274,12 @@ mov r m
 mov m r
 mov m i
 mov m m
-
 cmovz r r
 cmovz r i
 cmovz r m
 cmovz m r
 cmovz m i
 cmovz m m
-
 cmovnz r r
 cmovnz r i
 cmovnz r m
@@ -303,14 +293,12 @@ xchg r m
 xchg m r
 xchg m i
 xchg m m
-
 cxchgz r r
 cxchgz r i
 cxchgz r m
 cxchgz m r
 cxchgz m i
 cxchgz m m
-
 cxchgnz r r
 cxchgnz r i
 cxchgnz r m
@@ -320,10 +308,8 @@ cxchgnz m m
 
 lea r m
 lea m m
-
 cleaz r m
 cleaz m m
-
 cleanz r m
 cleanz m m
 
@@ -334,13 +320,29 @@ cleanz m m
 push i
 push r
 push m
+cpushz i
+cpushz r
+cpushz m
+cpushnz i
+cpushnz r
+cpushnz m
 
 pop r
 pop m
+cpopz r
+cpopz m
+cpopnz r
+cpopnz m
 
 call r
 call i
 call m
+ccallz r
+ccallz i
+ccallz m
+ccallnz r
+ccallnz i
+ccallnz m
 
 ret
 cretz
@@ -349,6 +351,8 @@ cretnz
 # push rbp
 # mov rbp, rsp
 enter
+centerz
+centernz
 
 # mov rbp, [rsp+8]
 # add rsp, 8
diff --git a/pc/instrs/stack.c b/pc/instrs/stack.c
index 245c42a..6686d71 100644
--- a/pc/instrs/stack.c
+++ b/pc/instrs/stack.c
@@ -4,7 +4,11 @@
 #include "instrs.h"
 #include "arch_i.h"
 
+IMPL_COND(push);
+IMPL_COND(pop);
+IMPL_COND(call);
 IMPL_COND(ret);
+IMPL_COND(enter);
 IMPL_COND(leave);
 
 //