28 lines
618 B
ArmAsm
28 lines
618 B
ArmAsm
// #LAYOUT# STD * #TAKE
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// #LAYOUT# * KERNAL_0 #TAKE
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// #LAYOUT# * * #IGNORE
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//
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// Official Kernal routine, described in:
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//
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// - [RG64] C64 Programmers Reference Guide - page 293 (RESTOR), 304 (VECTOR)
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// - [CM64] Computes Mapping the Commodore 64 - page 237
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//
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// CPU registers that has to be preserved (see [RG64]): none
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//
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RESTOR:
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clc // clear carry - for writing to system table
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ldy #>vector_defaults
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ldx #<vector_defaults
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// FALLTHROUGH
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VECTOR:
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// Our implementation is longer than the original one,
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// placing it here would cause a collision with VECTOR defaults
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jmp vector_real
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