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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
23 lines
478 B
ArmAsm
23 lines
478 B
ArmAsm
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; Ullrich von Bassewitz, 2003-12-20
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; OPEN kernal call.
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; NOTE: The OPEN system call in the CBM610 kernal is different from the
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; standard. It evaluates the carry flag and does a normal open if carry clear
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; and some strange things (output sa 15 + name on IEC) if carry set. To be
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; compatible with our CBM file stuff, we have to clear the carry before
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; calling the real OPEN.
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.export OPEN
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.proc OPEN
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clc
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jmp $FFC0
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.endproc
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