diff --git a/cfg/c65.cfg b/cfg/c65.cfg
new file mode 100644
index 000000000..914f84f3c
--- /dev/null
+++ b/cfg/c65.cfg
@@ -0,0 +1,44 @@
+FEATURES {
+    STARTADDRESS: default = $2001;
+}
+SYMBOLS {
+    __LOADADDR__:  type = import;
+    __EXEHDR__:    type = import;
+    __STACKSIZE__: type = weak, value = $0800; # 2k stack
+    __HIMEM__:     type = weak, value = $8000;
+}
+MEMORY {
+    ZP:       file = "", define = yes, start = $0002,           size = $001A;
+    LOADADDR: file = %O,               start = %S - 2,          size = $0002;
+    HEADER:   file = %O, define = yes, start = %S,              size = $0010;
+    MAIN:     file = %O, define = yes, start = __HEADER_LAST__, size = __HIMEM__ - __HEADER_LAST__;
+    BSS:      file = "",               start = __ONCE_RUN__,    size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
+}
+SEGMENTS {
+    ZEROPAGE: load = ZP,       type = zp;
+    LOADADDR: load = LOADADDR, type = ro;
+    EXEHDR:   load = HEADER,   type = ro;
+    STARTUP:  load = MAIN,     type = ro;
+    LOWCODE:  load = MAIN,     type = ro,  optional = yes;
+    CODE:     load = MAIN,     type = ro;
+    RODATA:   load = MAIN,     type = ro;
+    DATA:     load = MAIN,     type = rw;
+    INIT:     load = MAIN,     type = rw;  # uninitialized, but reserves output space
+    ONCE:     load = MAIN,     type = ro,  define   = yes;
+    BSS:      load = BSS,      type = bss, define   = yes;
+}
+FEATURES {
+    CONDES: type    = constructor,
+            label   = __CONSTRUCTOR_TABLE__,
+            count   = __CONSTRUCTOR_COUNT__,
+            segment = ONCE;
+    CONDES: type    = destructor,
+            label   = __DESTRUCTOR_TABLE__,
+            count   = __DESTRUCTOR_COUNT__,
+            segment = RODATA;
+    CONDES: type    = interruptor,
+            label   = __INTERRUPTOR_TABLE__,
+            count   = __INTERRUPTOR_COUNT__,
+            segment = RODATA,
+            import  = __CALLIRQ__;
+}
diff --git a/cfg/mega65.cfg b/cfg/mega65.cfg
new file mode 100644
index 000000000..914f84f3c
--- /dev/null
+++ b/cfg/mega65.cfg
@@ -0,0 +1,44 @@
+FEATURES {
+    STARTADDRESS: default = $2001;
+}
+SYMBOLS {
+    __LOADADDR__:  type = import;
+    __EXEHDR__:    type = import;
+    __STACKSIZE__: type = weak, value = $0800; # 2k stack
+    __HIMEM__:     type = weak, value = $8000;
+}
+MEMORY {
+    ZP:       file = "", define = yes, start = $0002,           size = $001A;
+    LOADADDR: file = %O,               start = %S - 2,          size = $0002;
+    HEADER:   file = %O, define = yes, start = %S,              size = $0010;
+    MAIN:     file = %O, define = yes, start = __HEADER_LAST__, size = __HIMEM__ - __HEADER_LAST__;
+    BSS:      file = "",               start = __ONCE_RUN__,    size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
+}
+SEGMENTS {
+    ZEROPAGE: load = ZP,       type = zp;
+    LOADADDR: load = LOADADDR, type = ro;
+    EXEHDR:   load = HEADER,   type = ro;
+    STARTUP:  load = MAIN,     type = ro;
+    LOWCODE:  load = MAIN,     type = ro,  optional = yes;
+    CODE:     load = MAIN,     type = ro;
+    RODATA:   load = MAIN,     type = ro;
+    DATA:     load = MAIN,     type = rw;
+    INIT:     load = MAIN,     type = rw;  # uninitialized, but reserves output space
+    ONCE:     load = MAIN,     type = ro,  define   = yes;
+    BSS:      load = BSS,      type = bss, define   = yes;
+}
+FEATURES {
+    CONDES: type    = constructor,
+            label   = __CONSTRUCTOR_TABLE__,
+            count   = __CONSTRUCTOR_COUNT__,
+            segment = ONCE;
+    CONDES: type    = destructor,
+            label   = __DESTRUCTOR_TABLE__,
+            count   = __DESTRUCTOR_COUNT__,
+            segment = RODATA;
+    CONDES: type    = interruptor,
+            label   = __INTERRUPTOR_TABLE__,
+            count   = __INTERRUPTOR_COUNT__,
+            segment = RODATA,
+            import  = __CALLIRQ__;
+}