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35 lines
898 B
ArmAsm
35 lines
898 B
ArmAsm
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; Ullrich von Bassewitz, 26.05.2002
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; CC65 runtime: zeropage usage
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;
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.exportzp sp, sreg, regsave
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.exportzp ptr1, ptr2, ptr3, ptr4
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.exportzp tmp1, tmp2, tmp3, tmp4
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.exportzp regbank
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; ------------------------------------------------------------------------
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.zeropage
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sp: .res 2 ; Stack pointer
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sreg: .res 2 ; Secondary register/high 16 bit for longs
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regsave: .res 4 ; slot to save/restore (E)AX into
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ptr1: .res 2
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ptr2: .res 2
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ptr3: .res 2
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ptr4: .res 2
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tmp1: .res 1
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tmp2: .res 1
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tmp3: .res 1
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tmp4: .res 1
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regbank: .res 6 ; 6 byte register bank
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; Add an empty EXTZP zeropage segment to avoid linker warnings that this
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; segment does not exist (it does not exist in most builtin linker configs
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; but is used when linking modules).
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.segment "EXTZP" : zeropage
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