Added environment routines

git-svn-id: svn://svn.cc65.org/cc65/trunk@3483 b7a2c559-68d2-44c3-8de9-860c34a00d81
2005-04-21 21:26:15 +00:00
parent 142636504f
commit e0319679f0
5 changed files with 362 additions and 0 deletions
--- a/libsrc/common/_environ.s
+++ b/libsrc/common/_environ.s
@@ -0,0 +1,30 @@
+;
+; Ullrich von Bassewitz, 2005-04-21
+;
+; extern char** _environ;
+;
+;
+; __environ is a pointer to the environment.
+; __envcount is the number of entries in the environment.
+; __envsize is the size of the allocated array.
+;
+; The maximum number of environment entries is 64. putenv() will set errno
+; to ENOMEM when trying to increase the number beyond this limit.
+;
+
+        .export         __environ, __envcount, __envsize
+	.import		initenv
+	.constructor	env_init
+	
+	env_init := initenv
+			   
+.bss
+
+__environ:
+        .addr   0
+__envcount:
+        .byte   0
+__envsize:
+        .byte   0
+
+