a7042ddbe4
Use wrappers to call the kernal in bank 15 instead of implementing kernal functionality within the cc65 libs (eats performance but is much smaller and simpler). Improved startup/shutdown code allows a return to the system bank without calling the BASIC cold start vector. git-svn-id: svn://svn.cc65.org/cc65/trunk@2793 b7a2c559-68d2-44c3-8de9-860c34a00d81
45 lines
1.2 KiB
ArmAsm
45 lines
1.2 KiB
ArmAsm
;
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; Ullrich von Bassewitz, 2003-12-20
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;
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; Additional zero page locations for the CBM610.
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; NOTE: This file is actually linked to an application with its full contents,
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; so the program comes up with the values given in this file.
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;
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; ------------------------------------------------------------------------
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.include "extzp.inc"
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.segment "EXTZP" : zeropage
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; The following values get initialized from a table in the startup code.
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; While this sounds crazy, it has reasons that have to do with modules (and
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; we have the space anyway). So when changing anything, be sure to adjust the
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; initializer table
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sysp1: .word $0000
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sysp3: .word $0000
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crtc: .word $0000
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sid: .word $0000
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ipccia: .word $0000
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cia: .word $0000
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acia: .word $0000
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tpi1: .word $0000
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tpi2: .word $0000
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ktab1: .word $0000
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ktab2: .word $0000
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ktab3: .word $0000
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ktab4: .word $0000
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sysp0: .word $0000
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time: .dword $0000
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segsave: .byte 0
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scanbuf: .byte 0
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ktmp: .byte 0
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CURS_X: .byte 0
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CURS_Y: .byte 0
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CharPtr: .word 0
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