mirror of
https://github.com/cc65/cc65.git
synced 2025-01-08 20:31:31 +00:00
Moved run location of ONCE segment.
Make the same changes to the Apple II that were done with 0ee9b2e446 to the C64.
Notes:
- The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional.
- The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
This commit is contained in:
Oliver Schmidt
parent
1d1ba3ed3b
commit
e3cbc7e8b8
@ -3,20 +3,17 @@
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FEATURES {
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STARTADDRESS: default = $0803;
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}
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SYMBOLS {
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__LOADADDR__: type = weak, value = __CODE_RUN__;
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__LOADSIZE__: type = weak, value = __BSS_RUN__ - __CODE_RUN__;
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}
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MEMORY {
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ZP: start = $0080, size = $001A, define = yes;
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HEADER: file = %O, start = $0000, size = $0004;
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MAIN: file = %O, start = %S, size = $C000 - %S;
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ZP: file = "", start = $0000, size = $00FF;
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HEADER: file = %O, start = %S - 4, size = $0004;
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MAIN: file = %O, define = yes, start = %S, size = $C000 - %S;
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BSS: file = "", start = __MAIN_LAST__, size = $C000 - __MAIN_LAST__;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp, optional = yes;
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EXEHDR: load = HEADER, type = ro, optional = yes;
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CODE: load = MAIN, type = rw, optional = yes, define = yes;
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CODE: load = MAIN, type = rw, optional = yes;
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RODATA: load = MAIN, type = ro, optional = yes;
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DATA: load = MAIN, type = rw, optional = yes;
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BSS: load = MAIN, type = bss, optional = yes, define = yes;
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BSS: load = BSS, type = bss, optional = yes, define = yes;
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}
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@ -12,21 +12,18 @@ FEATURES {
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}
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SYMBOLS {
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__EXEHDR__: type = import;
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__HIMEM__: type = weak, value = $9600; # Presumed RAM end
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__LCADDR__: type = weak, value = $D400; # Behind quit code
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__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__OVERLAYSIZE__: type = weak, value = $1000; # 4k overlay
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__LOADADDR__: type = weak, value = __STARTUP_RUN__;
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__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
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__MOVE_LAST__ - __MOVE_START__;
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}
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MEMORY {
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ZP: define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = $0000, size = $0004;
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MAIN: file = %O, start = %S + __OVERLAYSIZE__, size = __HIMEM__ - __STACKSIZE__ - __OVERLAYSIZE__ - %S;
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MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
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LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
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ZP: file = "", define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = %S - 4, size = $0004;
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MAIN: file = %O, define = yes, start = %S + __OVERLAYSIZE__, size = __HIMEM__ - __OVERLAYSIZE__ - %S;
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BSS: file = "", start = __ONCE_RUN__, size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
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LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
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OVL1: file = "%O.1", start = %S, size = __OVERLAYSIZE__;
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OVL2: file = "%O.2", start = %S, size = __OVERLAYSIZE__;
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OVL3: file = "%O.3", start = %S, size = __OVERLAYSIZE__;
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@ -38,26 +35,26 @@ MEMORY {
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OVL9: file = "%O.9", start = %S, size = __OVERLAYSIZE__;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = bss, define = yes;
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BSS: load = MAIN, type = bss, define = yes;
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ONCE: load = MOVE, run = MAIN, type = ro, define = yes, optional = yes;
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LC: load = MOVE, run = LC, type = ro, optional = yes;
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OVERLAY1: load = OVL1, type = ro, define = yes, optional = yes;
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OVERLAY2: load = OVL2, type = ro, define = yes, optional = yes;
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OVERLAY3: load = OVL3, type = ro, define = yes, optional = yes;
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OVERLAY4: load = OVL4, type = ro, define = yes, optional = yes;
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OVERLAY5: load = OVL5, type = ro, define = yes, optional = yes;
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OVERLAY6: load = OVL6, type = ro, define = yes, optional = yes;
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OVERLAY7: load = OVL7, type = ro, define = yes, optional = yes;
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OVERLAY8: load = OVL8, type = ro, define = yes, optional = yes;
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OVERLAY9: load = OVL9, type = ro, define = yes, optional = yes;
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = rw;
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ONCE: load = MAIN, type = ro, define = yes;
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LC: load = MAIN, run = LC, type = ro, optional = yes;
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BSS: load = BSS, type = bss, define = yes;
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OVERLAY1: load = OVL1, type = ro, define = yes, optional = yes;
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OVERLAY2: load = OVL2, type = ro, define = yes, optional = yes;
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OVERLAY3: load = OVL3, type = ro, define = yes, optional = yes;
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OVERLAY4: load = OVL4, type = ro, define = yes, optional = yes;
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OVERLAY5: load = OVL5, type = ro, define = yes, optional = yes;
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OVERLAY6: load = OVL6, type = ro, define = yes, optional = yes;
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OVERLAY7: load = OVL7, type = ro, define = yes, optional = yes;
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OVERLAY8: load = OVL8, type = ro, define = yes, optional = yes;
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OVERLAY9: load = OVL9, type = ro, define = yes, optional = yes;
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}
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FEATURES {
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CONDES: type = constructor,
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@ -1,30 +1,27 @@
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# Configuration for ProDOS 8 system programs (without the header)
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SYMBOLS {
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__LCADDR__: type = weak, value = $D400; # Behind quit code
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__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__LOADADDR__: type = weak, value = __STARTUP_RUN__;
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__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
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__MOVE_LAST__ - __MOVE_START__;
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}
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MEMORY {
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ZP: define = yes, start = $0080, size = $001A;
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MAIN: file = %O, start = $2000, size = $9F00 - __STACKSIZE__;
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MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
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LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
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ZP: file = "", define = yes, start = $0080, size = $001A;
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MAIN: file = %O, start = $2000, size = $BF00 - $2000;
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BSS: file = "", start = __ONCE_RUN__, size = $BF00 - __STACKSIZE__ - __ONCE_RUN__;
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LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = bss, define = yes;
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BSS: load = MAIN, type = bss, define = yes;
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ONCE: load = MOVE, run = RAM, type = ro, define = yes, optional = yes;
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LC: load = MOVE, run = LC, type = ro, optional = yes;
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ZEROPAGE: load = ZP, type = zp;
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STARTUP: load = MAIN, type = ro;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = rw;
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ONCE: load = MAIN, type = ro, define = yes;
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LC: load = MAIN, run = LC, type = ro, optional = yes;
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BSS: load = BSS, type = bss, define = yes;
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}
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FEATURES {
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CONDES: type = constructor,
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@ -5,33 +5,30 @@ FEATURES {
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}
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SYMBOLS {
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__EXEHDR__: type = import;
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__HIMEM__: type = weak, value = $9600; # Presumed RAM end
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__LCADDR__: type = weak, value = $D400; # Behind quit code
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__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__LOADADDR__: type = weak, value = __STARTUP_RUN__;
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__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
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__MOVE_LAST__ - __MOVE_START__;
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}
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MEMORY {
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ZP: define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = $0000, size = $0004;
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MAIN: file = %O, start = %S, size = __HIMEM__ - __STACKSIZE__ - %S;
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MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
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LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
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ZP: file = "", define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = %S - 4, size = $0004;
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MAIN: file = %O, define = yes, start = %S, size = __HIMEM__ - %S;
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BSS: file = "", start = __ONCE_RUN__, size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
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LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = bss, define = yes;
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BSS: load = MAIN, type = bss, define = yes;
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ONCE: load = MOVE, run = MAIN, type = ro, define = yes, optional = yes;
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LC: load = MOVE, run = LC, type = ro, optional = yes;
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = rw;
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ONCE: load = MAIN, type = ro, define = yes;
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LC: load = MAIN, run = LC, type = ro, optional = yes;
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BSS: load = BSS, type = bss, define = yes;
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}
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FEATURES {
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CONDES: type = constructor,
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@ -3,18 +3,17 @@
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FEATURES {
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STARTADDRESS: default = $0803;
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}
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SYMBOLS {
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__LOADADDR__: type = weak, value = __CODE_RUN__;
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__LOADSIZE__: type = weak, value = __BSS_RUN__ - __CODE_RUN__;
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}
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MEMORY {
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HEADER: file = %O, start = $0000, size = $0004;
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MAIN: file = %O, start = %S, size = $C000 - %S;
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ZP: file = "", start = $0000, size = $00FF;
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HEADER: file = %O, start = %S - 4, size = $0004;
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MAIN: file = %O, define = yes, start = %S, size = $C000 - %S;
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BSS: file = "", start = __MAIN_LAST__, size = $C000 - __MAIN_LAST__;
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}
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SEGMENTS {
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EXEHDR: load = HEADER, type = ro, optional = yes;
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CODE: load = MAIN, type = rw, optional = yes, define = yes;
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RODATA: load = MAIN, type = ro, optional = yes;
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DATA: load = MAIN, type = rw, optional = yes;
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BSS: load = MAIN, type = bss, optional = yes, define = yes;
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ZEROPAGE: load = ZP, type = zp, optional = yes;
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EXEHDR: load = HEADER, type = ro, optional = yes;
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CODE: load = MAIN, type = rw, optional = yes;
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RODATA: load = MAIN, type = ro, optional = yes;
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DATA: load = MAIN, type = rw, optional = yes;
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BSS: load = BSS, type = bss, optional = yes, define = yes;
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}
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@ -12,21 +12,18 @@ FEATURES {
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}
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SYMBOLS {
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__EXEHDR__: type = import;
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__HIMEM__: type = weak, value = $9600; # Presumed RAM end
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__LCADDR__: type = weak, value = $D400; # Behind quit code
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__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
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__OVERLAYSIZE__: type = weak, value = $1000; # 4k overlay
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__LOADADDR__: type = weak, value = __STARTUP_RUN__;
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__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
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__MOVE_LAST__ - __MOVE_START__;
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}
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MEMORY {
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ZP: define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = $0000, size = $0004;
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MAIN: file = %O, start = %S + __OVERLAYSIZE__, size = __HIMEM__ - __STACKSIZE__ - __OVERLAYSIZE__ - %S;
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MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
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LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
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ZP: file = "", define = yes, start = $0080, size = $001A;
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HEADER: file = %O, start = %S - 4, size = $0004;
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MAIN: file = %O, define = yes, start = %S + __OVERLAYSIZE__, size = __HIMEM__ - __OVERLAYSIZE__ - %S;
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BSS: file = "", start = __ONCE_RUN__, size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
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LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
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OVL1: file = "%O.1", start = %S, size = __OVERLAYSIZE__;
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OVL2: file = "%O.2", start = %S, size = __OVERLAYSIZE__;
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OVL3: file = "%O.3", start = %S, size = __OVERLAYSIZE__;
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@ -38,26 +35,26 @@ MEMORY {
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OVL9: file = "%O.9", start = %S, size = __OVERLAYSIZE__;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = bss, define = yes;
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BSS: load = MAIN, type = bss, define = yes;
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ONCE: load = MOVE, run = MAIN, type = ro, define = yes, optional = yes;
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LC: load = MOVE, run = LC, type = ro, optional = yes;
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OVERLAY1: load = OVL1, type = ro, define = yes, optional = yes;
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OVERLAY2: load = OVL2, type = ro, define = yes, optional = yes;
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OVERLAY3: load = OVL3, type = ro, define = yes, optional = yes;
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OVERLAY4: load = OVL4, type = ro, define = yes, optional = yes;
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OVERLAY5: load = OVL5, type = ro, define = yes, optional = yes;
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OVERLAY6: load = OVL6, type = ro, define = yes, optional = yes;
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OVERLAY7: load = OVL7, type = ro, define = yes, optional = yes;
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OVERLAY8: load = OVL8, type = ro, define = yes, optional = yes;
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OVERLAY9: load = OVL9, type = ro, define = yes, optional = yes;
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ZEROPAGE: load = ZP, type = zp;
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EXEHDR: load = HEADER, type = ro;
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STARTUP: load = MAIN, type = ro, define = yes;
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LOWCODE: load = MAIN, type = ro, optional = yes;
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CODE: load = MAIN, type = ro;
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RODATA: load = MAIN, type = ro;
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DATA: load = MAIN, type = rw;
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INIT: load = MAIN, type = rw;
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ONCE: load = MAIN, type = ro, define = yes;
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LC: load = MAIN, run = LC, type = ro, optional = yes;
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BSS: load = BSS, type = bss, define = yes;
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OVERLAY1: load = OVL1, type = ro, define = yes, optional = yes;
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OVERLAY2: load = OVL2, type = ro, define = yes, optional = yes;
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OVERLAY3: load = OVL3, type = ro, define = yes, optional = yes;
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OVERLAY4: load = OVL4, type = ro, define = yes, optional = yes;
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OVERLAY5: load = OVL5, type = ro, define = yes, optional = yes;
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OVERLAY6: load = OVL6, type = ro, define = yes, optional = yes;
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OVERLAY7: load = OVL7, type = ro, define = yes, optional = yes;
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OVERLAY8: load = OVL8, type = ro, define = yes, optional = yes;
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OVERLAY9: load = OVL9, type = ro, define = yes, optional = yes;
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}
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FEATURES {
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CONDES: type = constructor,
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|
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@ -1,30 +1,27 @@
|
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# Configuration for ProDOS 8 system programs (without the header)
|
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|
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SYMBOLS {
|
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
|
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__LCADDR__: type = weak, value = $D400; # Behind quit code
|
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__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
|
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__STACKSIZE__: type = weak, value = $0800; # 2k stack
|
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__LOADADDR__: type = weak, value = __STARTUP_RUN__;
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__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
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__MOVE_LAST__ - __MOVE_START__;
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}
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MEMORY {
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ZP: define = yes, start = $0080, size = $001A;
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MAIN: file = %O, start = $2000, size = $9F00 - __STACKSIZE__;
|
||||
MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
|
||||
LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
|
||||
ZP: file = "", define = yes, start = $0080, size = $001A;
|
||||
MAIN: file = %O, start = $2000, size = $BF00 - $2000;
|
||||
BSS: file = "", start = __ONCE_RUN__, size = $BF00 - __STACKSIZE__ - __ONCE_RUN__;
|
||||
LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
|
||||
}
|
||||
SEGMENTS {
|
||||
ZEROPAGE: load = ZP, type = zp;
|
||||
STARTUP: load = MAIN, type = ro, define = yes;
|
||||
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 = bss, define = yes;
|
||||
BSS: load = MAIN, type = bss, define = yes;
|
||||
ONCE: load = MOVE, run = MAIN, type = ro, define = yes, optional = yes;
|
||||
LC: load = MOVE, run = LC, type = ro, optional = yes;
|
||||
ZEROPAGE: load = ZP, type = zp;
|
||||
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;
|
||||
ONCE: load = MAIN, type = ro, define = yes;
|
||||
LC: load = MAIN, run = LC, type = ro, optional = yes;
|
||||
BSS: load = BSS, type = bss, define = yes;
|
||||
}
|
||||
FEATURES {
|
||||
CONDES: type = constructor,
|
||||
|
||||
@ -5,33 +5,30 @@ FEATURES {
|
||||
}
|
||||
SYMBOLS {
|
||||
__EXEHDR__: type = import;
|
||||
__STACKSIZE__: type = weak, value = $0800; # 2k stack
|
||||
__HIMEM__: type = weak, value = $9600; # Presumed RAM end
|
||||
__LCADDR__: type = weak, value = $D400; # Behind quit code
|
||||
__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
|
||||
__STACKSIZE__: type = weak, value = $0800; # 2k stack
|
||||
__LOADADDR__: type = weak, value = __STARTUP_RUN__;
|
||||
__LOADSIZE__: type = weak, value = __INIT_RUN__ - __STARTUP_RUN__ +
|
||||
__MOVE_LAST__ - __MOVE_START__;
|
||||
}
|
||||
MEMORY {
|
||||
ZP: define = yes, start = $0080, size = $001A;
|
||||
HEADER: file = %O, start = $0000, size = $0004;
|
||||
MAIN: file = %O, start = %S, size = __HIMEM__ - __STACKSIZE__ - %S;
|
||||
MOVE: file = %O, define = yes, start = $0000, size = $FFFF;
|
||||
LC: define = yes, start = __LCADDR__, size = __LCSIZE__;
|
||||
ZP: file = "", define = yes, start = $0080, size = $001A;
|
||||
HEADER: file = %O, start = %S - 4, size = $0004;
|
||||
MAIN: file = %O, define = yes, start = %S, size = __HIMEM__ - %S;
|
||||
BSS: file = "", start = __ONCE_RUN__, size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
|
||||
LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
|
||||
}
|
||||
SEGMENTS {
|
||||
ZEROPAGE: load = ZP, type = zp;
|
||||
EXEHDR: load = HEADER, type = ro;
|
||||
STARTUP: load = MAIN, type = ro, define = yes;
|
||||
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 = bss, define = yes;
|
||||
BSS: load = MAIN, type = bss, define = yes;
|
||||
ONCE: load = MOVE, run = MAIN, type = ro, define = yes, optional = yes;
|
||||
LC: load = MOVE, run = LC, type = ro, optional = yes;
|
||||
ZEROPAGE: load = ZP, type = zp;
|
||||
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;
|
||||
ONCE: load = MAIN, type = ro, define = yes;
|
||||
LC: load = MAIN, run = LC, type = ro, optional = yes;
|
||||
BSS: load = BSS, type = bss, define = yes;
|
||||
}
|
||||
FEATURES {
|
||||
CONDES: type = constructor,
|
||||
|
||||
@ -6,16 +6,17 @@
|
||||
|
||||
.export _exit, done, return
|
||||
.export __STARTUP__ : absolute = 1 ; Mark as startup
|
||||
.import zerobss
|
||||
|
||||
.import initlib, donelib
|
||||
.import callmain
|
||||
.import zerobss, callmain
|
||||
.import __ONCE_LOAD__, __ONCE_SIZE__ ; Linker generated
|
||||
.import __LC_START__, __LC_LAST__ ; Linker generated
|
||||
.import __ONCE_RUN__, __ONCE_SIZE__ ; Linker generated
|
||||
.import __INIT_RUN__ ; Linker generated
|
||||
|
||||
.include "zeropage.inc"
|
||||
.include "apple2.inc"
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.segment "STARTUP"
|
||||
|
||||
; ProDOS TechRefMan, chapter 5.2.1:
|
||||
@ -24,57 +25,16 @@
|
||||
ldx #$FF
|
||||
txs ; Init stack pointer
|
||||
|
||||
; Switch in LC bank 2 for W/O.
|
||||
bit $C081
|
||||
bit $C081
|
||||
|
||||
; Set the source start address.
|
||||
lda #<(__INIT_RUN__ + __ONCE_SIZE__)
|
||||
ldy #>(__INIT_RUN__ + __ONCE_SIZE__)
|
||||
sta $9B
|
||||
sty $9C
|
||||
|
||||
; Set the source last address.
|
||||
lda #<(__INIT_RUN__ + __ONCE_SIZE__ + __LC_LAST__ - __LC_START__)
|
||||
ldy #>(__INIT_RUN__ + __ONCE_SIZE__ + __LC_LAST__ - __LC_START__)
|
||||
sta $96
|
||||
sty $97
|
||||
|
||||
; Set the destination last address.
|
||||
lda #<__LC_LAST__
|
||||
ldy #>__LC_LAST__
|
||||
sta $94
|
||||
sty $95
|
||||
|
||||
; Call into Applesoft Block Transfer Up -- which handles zero-
|
||||
; sized blocks well -- to move the content of the LC memory area.
|
||||
jsr $D39A ; BLTU2
|
||||
|
||||
; Set the source start address.
|
||||
lda #<__INIT_RUN__
|
||||
ldy #>__INIT_RUN__
|
||||
sta $9B
|
||||
sty $9C
|
||||
|
||||
; Set the source last address.
|
||||
lda #<(__INIT_RUN__ + __ONCE_SIZE__)
|
||||
ldy #>(__INIT_RUN__ + __ONCE_SIZE__)
|
||||
sta $96
|
||||
sty $97
|
||||
|
||||
; Set the destination last address.
|
||||
lda #<(__ONCE_RUN__ + __ONCE_SIZE__)
|
||||
ldy #>(__ONCE_RUN__ + __ONCE_SIZE__)
|
||||
sta $94
|
||||
sty $95
|
||||
|
||||
; Call into Applesoft Block Transfer Up -- which handles moving
|
||||
; overlapping blocks upwards well -- to move the ONCE segment.
|
||||
jsr $D39A ; BLTU2
|
||||
|
||||
; Delegate all further processing, to keep the STARTUP segment small.
|
||||
; Save space by putting some of the start-up code in the ONCE segment,
|
||||
; which can be re-used by the BSS segment, the heap and the C stack.
|
||||
jsr init
|
||||
|
||||
; Clear the BSS data.
|
||||
jsr zerobss
|
||||
|
||||
; Push the command-line arguments; and, call main().
|
||||
jsr callmain
|
||||
|
||||
; Avoid a re-entrance of donelib. This is also the exit() entry.
|
||||
_exit: ldx #<exit
|
||||
lda #>exit
|
||||
@ -109,6 +69,8 @@ exit: ldx #$02
|
||||
; We're done
|
||||
jmp done
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.segment "ONCE"
|
||||
|
||||
; Save the zero-page locations that we need.
|
||||
@ -118,9 +80,6 @@ init: ldx #zpspace-1
|
||||
dex
|
||||
bpl :-
|
||||
|
||||
; Clear the BSS data.
|
||||
jsr zerobss
|
||||
|
||||
; Save the original RESET vector.
|
||||
ldx #$02
|
||||
: lda SOFTEV,x
|
||||
@ -128,13 +87,6 @@ init: ldx #zpspace-1
|
||||
dex
|
||||
bpl :-
|
||||
|
||||
; ProDOS TechRefMan, chapter 5.3.5:
|
||||
; "Your system program should place in the RESET vector the
|
||||
; address of a routine that ... closes the files."
|
||||
ldx #<_exit
|
||||
lda #>_exit
|
||||
jsr reset ; Setup RESET vector
|
||||
|
||||
; Check for ProDOS.
|
||||
ldy $BF00 ; MLI call entry point
|
||||
cpy #$4C ; Is MLI present? (JMP opcode)
|
||||
@ -164,14 +116,50 @@ basic: lda HIMEM
|
||||
: sta sp
|
||||
stx sp+1
|
||||
|
||||
; ProDOS TechRefMan, chapter 5.3.5:
|
||||
; "Your system program should place in the RESET vector the
|
||||
; address of a routine that ... closes the files."
|
||||
ldx #<_exit
|
||||
lda #>_exit
|
||||
jsr reset ; Setup RESET vector
|
||||
|
||||
; Call the module constructors.
|
||||
jsr initlib
|
||||
|
||||
; Switch in LC bank 2 for R/O.
|
||||
bit $C080
|
||||
; Switch in LC bank 2 for W/O.
|
||||
bit $C081
|
||||
bit $C081
|
||||
|
||||
; Push the command-line arguments; and, call main().
|
||||
jmp callmain
|
||||
; Set the source start address.
|
||||
; Aka __LC_LOAD__ iff segment LC exists.
|
||||
lda #<(__ONCE_LOAD__ + __ONCE_SIZE__)
|
||||
ldy #>(__ONCE_LOAD__ + __ONCE_SIZE__)
|
||||
sta $9B
|
||||
sty $9C
|
||||
|
||||
; Set the source last address.
|
||||
; Aka __LC_LOAD__ + __LC_SIZE__ iff segment LC exists.
|
||||
lda #<((__ONCE_LOAD__ + __ONCE_SIZE__) + (__LC_LAST__ - __LC_START__))
|
||||
ldy #>((__ONCE_LOAD__ + __ONCE_SIZE__) + (__LC_LAST__ - __LC_START__))
|
||||
sta $96
|
||||
sty $97
|
||||
|
||||
; Set the destination last address.
|
||||
; Aka __LC_RUN__ + __LC_SIZE__ iff segment LC exists.
|
||||
lda #<__LC_LAST__
|
||||
ldy #>__LC_LAST__
|
||||
sta $94
|
||||
sty $95
|
||||
|
||||
; Call into Applesoft Block Transfer Up -- which handles zero-
|
||||
; sized blocks well -- to move the content of the LC memory area.
|
||||
jsr $D39A ; BLTU2
|
||||
|
||||
; Switch in LC bank 2 for R/O and return.
|
||||
bit $C080
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.code
|
||||
|
||||
@ -187,6 +175,8 @@ quit: jsr $BF00 ; MLI call entry point
|
||||
.byte $65 ; Quit
|
||||
.word q_param
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.rodata
|
||||
|
||||
; MLI parameter list for quit
|
||||
@ -196,15 +186,16 @@ q_param:.byte $04 ; param_count
|
||||
.byte $00 ; reserved
|
||||
.word $0000 ; reserved
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.data
|
||||
|
||||
; Final jump when we're done
|
||||
done: jmp DOSWARM ; Potentially patched at runtime
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.segment "INIT"
|
||||
|
||||
zpsave: .res zpspace
|
||||
|
||||
.bss
|
||||
|
||||
rvsave: .res 3
|
||||
|
||||
@ -6,11 +6,11 @@
|
||||
;
|
||||
|
||||
.export __EXEHDR__ : absolute = 1 ; Linker referenced
|
||||
.import __LOADADDR__, __LOADSIZE__ ; Linker generated
|
||||
.import __MAIN_START__, __MAIN_LAST__ ; Linker generated
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
||||
.segment "EXEHDR"
|
||||
|
||||
.addr __LOADADDR__ ; Load address
|
||||
.word __LOADSIZE__ ; Load length
|
||||
.addr __MAIN_START__ ; Load address
|
||||
.word __MAIN_LAST__ - __MAIN_START__ ; Load length
|
||||
|
||||
Loading…
Reference in New Issue
Block a user