moved cart header into seperate file, moved nmi stub into several file, tweaked linker config
This commit is contained in:
mrdudz
parent
1893e24da9
commit
c636675521
8 changed files with 53 additions and 50 deletions
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@ -8,23 +8,24 @@ SYMBOLS {
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MEMORY {
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# 0000-03ff is RAM
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# FIXME: what zp range can we actually use?
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ZP: start = $0080, size = $80;
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ZP: start = $0020, size = $e0;
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CPUSTACK: start = $0100, size =$100;
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RAM: start = $0200, size = $180, define = yes;
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RAM: start = $0200, size = $200 - __STACKSIZE__, define = yes;
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CARTHEADER: file = %O, define = yes, start = %S, size = $0029;
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# 6000-e000 can be (Cartridge) ROM
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# WARNING: fill value must be $00 else it will no more work
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#ROM: start = $6000, size = $1000, fill = yes, fillval = $00, file = %O, define = yes;
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#ROMFILL: start = $7000, size = $7000, fill = yes, fillval = $00, file = %O, define = yes;
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# for images that have code >$6fff we must calculate the checksum!
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ROM: start = $6000, size = $8000, fill = yes, fillval = $00, file = %O, define = yes;
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ROM: start = $6000 + $29, size = $8000 - $29, fill = yes, fillval = $00, file = %O, define = yes;
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}
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SEGMENTS {
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ZEROPAGE: load = ZP, type = zp, define = yes;
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EXTZP: load = ZP, type = zp, define = yes, optional = yes;
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APPZP: load = ZP, type = zp, define = yes, optional = yes;
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STARTUP: load = ROM, type = ro, define=yes;
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STARTUP: load = CARTHEADER, type = ro, define=yes;
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INIT: load = ROM, type = ro, define = yes, optional = yes;
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CODE: load = ROM, type = ro, define=yes;
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RODATA: load = ROM, type = ro, define=yes;
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@ -1,33 +1,16 @@
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.export __STARTUP__ : absolute = 1 ; Mark as startup
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.export Start, _exit
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.import initlib, donelib, callmain
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.import push0, _main, zerobss, copydata
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.import IRQStub
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; Linker generated symbols
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.import __RAM_START__, __RAM_SIZE__
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.import __ROM_START__, __ROM_SIZE__
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.import __STARTUP_LOAD__,__STARTUP_RUN__, __STARTUP_SIZE__
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.import __CODE_LOAD__,__CODE_RUN__, __CODE_SIZE__
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.import __RODATA_LOAD__,__RODATA_RUN__, __RODATA_SIZE__
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.include "zeropage.inc"
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.include "gamate.inc"
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.segment "STARTUP"
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.word 0 ; +00 checksum from 7000-7fff (simple 8bit adds)
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.byte 1, 0, 1 ; +02 flags
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.byte "COPYRIGHT BIT CORPORATION", 0, $ff ; +05 copyright
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; system vectors
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jmp reset ; +20 reset entry
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jmp nmi ; +23 nmi entry
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jmp IRQStub ; +26 irq entry (135 hz)
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;-------------------------------------------------------------------------------
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reset:
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Start:
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; setup the CPU and System-IRQ
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; Initialize CPU
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@ -67,12 +50,8 @@ _exit:
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jsr donelib ; Run module destructors
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; reset (start over)
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jmp reset
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jmp Start
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.export initmainargs
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initmainargs:
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rts
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;-------------------------------------------------------------------------------
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nmi:
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rts
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16
libsrc/gamate/header.s
Normal file
16
libsrc/gamate/header.s
Normal file
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@ -0,0 +1,16 @@
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; The following symbol is used by linker config to force the module
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; to get included into the output file
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.export __STARTUP__: absolute = 1
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.import Start, IRQStub, NMIStub
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.segment "STARTUP"
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.word 0 ; +00 checksum from 7000-7fff (simple 8bit adds)
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.byte 1, 0, 1 ; +02 flags
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.byte "COPYRIGHT BIT CORPORATION", 0, $ff ; +05 copyright
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; system vectors
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jmp Start ; +20 reset entry
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jmp NMIStub ; +23 nmi entry
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jmp IRQStub ; +26 irq entry (135 hz)
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7
libsrc/gamate/nmi.s
Normal file
7
libsrc/gamate/nmi.s
Normal file
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@ -0,0 +1,7 @@
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;
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; NMI handling (Gamate version)
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;
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.export NMIStub
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NMIStub:
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rts
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@ -1,7 +1,6 @@
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; original audiotest.s by PeT (mess@utanet.at)
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.export _main
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.include "gamate.inc"
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.zeropage
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@ -29,17 +28,15 @@ psy: .byte 0
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xpos: .byte 0
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ypos: .byte 0
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.code
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.code
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chars:
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.incbin "cga2.chr"
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hex2asc: .byte "0123456789abcdef"
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chars: .incbin "cga2.chr"
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hex2asc: .byte "0123456789abcdef"
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;-------------------------------------------------------------------------------
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.export IRQStub
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.export IRQStub, NMIStub
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.proc nmi
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.proc NMIStub
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inc nmi_count
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rts
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.endproc
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@ -50,8 +47,9 @@ hex2asc: .byte "0123456789abcdef"
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.endproc
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;-------------------------------------------------------------------------------
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.export Start
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.proc _main
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.proc Start
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lda #>AUDIO_BASE
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sta writeaddr+1
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sta readaddr+1
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@ -4,7 +4,7 @@
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#include <conio.h>
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unsigned char y = 0;
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unsigned char x;
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unsigned char x = 0;
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unsigned short n;
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int main(int argc, char *argv[])
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@ -22,14 +22,14 @@ int main(int argc, char *argv[])
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n = clock();
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gotoxy(0,2);cprintf("%04x %02x %02x", n, x, y);
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gotoxy(0,2);cprintf("%04x %02x %02x %02x", n, x, y, *((unsigned char*)JOY_DATA));
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switch((*((unsigned char*)JOY_DATA))) {
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case 0xff ^ JOY_DATA_UP:
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++y;
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++y; if (y == 0xc8) y = 0;
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break;
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case 0xff ^ JOY_DATA_DOWN:
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--y;
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--y; if (y == 0xff) y = 0xc7;
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break;
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case 0xff ^ JOY_DATA_LEFT:
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++x;
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@ -40,14 +40,12 @@ int main(int argc, char *argv[])
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case 0xff ^ JOY_DATA_FIRE_A:
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break;
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}
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if (y == 0xff) y = 0xc7;
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if (y == 0xc8) y = 0;
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waitvblank();
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(*((unsigned char*)LCD_XPOS)) = x;
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(*((unsigned char*)LCD_YPOS)) = y;
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waitvblank();
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}
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return 0;
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@ -1,7 +1,6 @@
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; original lcdtest.s by PeT (mess@utanet.at)
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.export _main
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.include "gamate.inc"
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.zeropage
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@ -32,15 +31,15 @@ xdesc: .byte "0123456789abcdefghijklmnopqrstuv", 0
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ydesc: .byte "0123456789ABCDEFGHIJKLMNOPQRSTUV", 0
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;-------------------------------------------------------------------------------
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.export IRQStub, NMIStub
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.proc nmi
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.proc NMIStub
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inc nmi_count
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rts
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.endproc
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.export IRQStub
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.proc IRQStub
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inc irq_count
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@ -55,8 +54,9 @@ ydesc: .byte "0123456789ABCDEFGHIJKLMNOPQRSTUV", 0
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.endproc
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;-------------------------------------------------------------------------------
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.export Start
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.proc _main
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.proc Start
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lda #0
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sta LCD_XPOS
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@ -13,6 +13,9 @@ int main(int argc, char *argv[]) {
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}
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in = fopen(argv[1], "rb");
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out = fopen(argv[2], "wb");
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if (!in || !out) {
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exit(-1);
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}
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len = fread(buffer, 1, 512 * 1024, in);
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n = 0; for (i = 0x1000; i < 0x2000; i++) {
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n += buffer[i];
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@ -22,4 +25,5 @@ int main(int argc, char *argv[]) {
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fwrite(buffer, 1, len, out);
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fclose(in);
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fclose(out);
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return (0);
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}
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