diff --git a/cfg/vic20-asm-32k.cfg b/cfg/vic20-asm-32k.cfg
new file mode 100644
index 000000000..622cfb26f
--- /dev/null
+++ b/cfg/vic20-asm-32k.cfg
@@ -0,0 +1,21 @@
+# Assembly program configuration for expanded VICs (>= +8K).
+
+FEATURES {
+    STARTADDRESS: default = $1201;
+}
+SYMBOLS {
+    __LOADADDR__: type = import;
+}
+MEMORY {
+    ZP:       file = "", start = $0002,  size = $001A, define = yes;
+    LOADADDR: file = %O, start = %S - 2, size = $0002;
+    MAIN:     file = %O, start = %S,     size = $8000 - %S;
+}
+SEGMENTS {
+    ZEROPAGE: load = ZP,       type = zp,  optional = yes;
+    LOADADDR: load = LOADADDR, type = ro;
+    CODE:     load = MAIN,     type = ro;
+    RODATA:   load = MAIN,     type = ro;
+    DATA:     load = MAIN,     type = rw;
+    BSS:      load = MAIN,     type = bss, optional = yes, define   = yes;
+}
diff --git a/cfg/vic20-asm-3k.cfg b/cfg/vic20-asm-3k.cfg
new file mode 100644
index 000000000..1afaf0b30
--- /dev/null
+++ b/cfg/vic20-asm-3k.cfg
@@ -0,0 +1,21 @@
+# Assembly program configuration for expanded VICs (+3K only).
+
+FEATURES {
+    STARTADDRESS: default = $0401;
+}
+SYMBOLS {
+    __LOADADDR__: type = import;
+}
+MEMORY {
+    ZP:       file = "", start = $0002,  size = $001A, define = yes;
+    LOADADDR: file = %O, start = %S - 2, size = $0002;
+    MAIN:     file = %O, start = %S,     size = $1E00 - %S;
+}
+SEGMENTS {
+    ZEROPAGE: load = ZP,       type = zp,  optional = yes;
+    LOADADDR: load = LOADADDR, type = ro;
+    CODE:     load = MAIN,     type = ro;
+    RODATA:   load = MAIN,     type = ro;
+    DATA:     load = MAIN,     type = rw;
+    BSS:      load = MAIN,     type = bss, optional = yes, define   = yes;
+}
diff --git a/cfg/vic20-asm.cfg b/cfg/vic20-asm.cfg
index 286a7f95c..5f6c7cc74 100644
--- a/cfg/vic20-asm.cfg
+++ b/cfg/vic20-asm.cfg
@@ -1,3 +1,5 @@
+# Assembly program configuration for unexpanded VICs.
+
 FEATURES {
     STARTADDRESS: default = $1001;
 }
@@ -7,7 +9,7 @@ SYMBOLS {
 MEMORY {
     ZP:       file = "", start = $0002,  size = $001A, define = yes;
     LOADADDR: file = %O, start = %S - 2, size = $0002;
-    MAIN:     file = %O, start = %S,     size = $0DF3 - %S;
+    MAIN:     file = %O, start = %S,     size = $1E00 - %S;
 }
 SEGMENTS {
     ZEROPAGE: load = ZP,       type = zp,  optional = yes;