Made stacksize user-adjustable on the cmdline.

[cc65] / src / ld65 / cfg / nes.cfg

diff --git a/src/ld65/cfg/nes.cfg b/src/ld65/cfg/nes.cfg
index 2b17cec27fbba994357ea8c81322e6a5c9b84023..2e2bb108e0b105d7f7ba0d0189f34a19fd44abdc 100644 (file)
--- a/src/ld65/cfg/nes.cfg
+++ b/src/ld65/cfg/nes.cfg
@@ -1,16 +1,54 @@
 MEMORY {
-    ZP: start = $02, size = $1A, type = rw, define = yes;
-    RAM: start = $03FF, size = $7BFF, file = %O;
+
+    ZP:  start = $02, size = $1A, type = rw, define = yes;
+
+    # INES Cartridge Header
+    HEADER: start = $0, size = $10, file = %O ,fill = yes;
+
+    # 2 16K ROM Banks
+    # - startup
+    # - code
+    # - rodata
+    # - data (load)
+    ROM0: start = $8000, size = $7ff4, file = %O ,fill = yes, define = yes;
+
+    # Hardware Vectors at End of 2nd 8K ROM
+    ROMV: start = $fff6, size = $c, file = %O, fill = yes;
+
+    # 1 8k CHR Bank
+    ROM2: start = $0000, size = $2000, file = %O, fill = yes;
+
+    # standard 2k SRAM (-zeropage)
+    # $0100-$0200 cpu stack
+    # $0200-$0500 3 pages for ppu memory write buffer
+    # $0500-$0800 3 pages for cc65 parameter stack
+    SRAM: start = $0500, size = $0300, define = yes;
+
+    # additional 8K SRAM Bank
+    # - data (run)
+    # - bss
+    # - heap
+    RAM: start = $6000, size = $2000, define = yes;
+
 }
+
 SEGMENTS {
-    CODE: load = RAM, type = wprot;
-    RODATA: load = RAM, type = wprot;
-    DATA: load = RAM, type = rw;
-    BSS: load = RAM, type = bss, define = yes;
-    ZEROPAGE: load = ZP, type = zp;
+    HEADER:   load = HEADER,          type = ro;
+    STARTUP:  load = ROM0,            type = ro,  define = yes;
+    LOWCODE:  load = ROM0,            type = ro,                optional = yes;
+    INIT:     load = ROM0,            type = ro,  define = yes, optional = yes;
+    CODE:     load = ROM0,            type = ro,  define = yes;
+    RODATA:   load = ROM0,            type = ro,  define = yes;
+    DATA:     load = ROM0, run = RAM, type = rw,  define = yes;
+    VECTORS:  load = ROMV,            type = rw;
+    CHARS:    load = ROM2,            type = rw;
+    BSS:      load = RAM,             type = bss, define = yes;
+    HEAP:     load = RAM,             type = bss, optional = yes;
+    ZEROPAGE: load = ZP,              type = zp;
 }
+
 FEATURES {
-    CONDES: segment = RODATA,
+    CONDES: segment = INIT,
            type = constructor,
            label = __CONSTRUCTOR_TABLE__,
            count = __CONSTRUCTOR_COUNT__;
@@ -18,7 +56,12 @@ FEATURES {
            type = destructor,
            label = __DESTRUCTOR_TABLE__,
            count = __DESTRUCTOR_COUNT__;
+    CONDES: type = interruptor,
+           segment = RODATA,
+           label = __INTERRUPTOR_TABLE__,
+           count = __INTERRUPTOR_COUNT__;
 }
+
 SYMBOLS {
-    __STACKSIZE__ = $800;      # 2K stack
+    __STACKSIZE__: value = $0300, weak = yes; # 3 pages stack
 }