diff --git a/runtime/amd64linuxrun.asm b/runtime/amd64linuxrun.asm
index c2c9cce..7e77bd3 100644
--- a/runtime/amd64linuxrun.asm
+++ b/runtime/amd64linuxrun.asm
@@ -208,7 +208,24 @@ base:	.equals	0x08048000
 	system_call	sys_unlink, 87, 1
 	system_call	sys_waitid, 247, 5
 	system_call	sys_write, 1, 3
-
+; Added 2025-02-16
+	system_call	sys_mkdir, 83, 2
+	system_call	sys_rmdir, 84, 1
+	system_call	sys_getcwd, 79, 2
+	system_call	sys_chdir, 80, 1
+	system_call	sys_stat, 4, 2
+	system_call sys_ftruncate, 77, 2
+	system_call	sys_getdents64, 217, 3
+; Added 2025-10-24
+	system_call	sys_ioctl, 16, 3
+; Added 2026-04-03
+  system_call	sys_pipe, 22, 1
+  system_call	sys_dup2, 33, 2
+	system_call	sys_fork, 57, 0
+	system_call sys_wait4, 61, 4
+	system_call sys_kill, 62, 2
+	system_call sys_execve, 59, 3
+	
 #undef system_call
 
 ; interpreter for dynamic linking