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29 lines
904 B
Ruby
29 lines
904 B
Ruby
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module Assembler6502
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####
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## This parses an assembler directive
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class Directive
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#####
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## Some directives are:
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## .inesprg x ; x * 16KB of PRG code
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## .ineschr x ; x * 8KB of CHR data
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## .inesmap x ; mapper. 0 = NROM, I don't know the other types
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## .inesmir x ; background mirroring, I don't know what this should be so x = 1
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## .bank x ; Sets the bank number, there are 8 banks of 8192 bytes = 2**16
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## .org $hhhh ; Positions the code at hex address $hhhh
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## .incbin "a" ; Assembles the contents of a binary file into current address
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## .dw x ; Assemble a 16-bit word at current address, x can be a label
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## .bytes a b c ; Assemble a sequence of bytes at the current address
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####
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## This will return a new Directive, or nil if it is something else.
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def self.parse(directive_line)
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end
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end
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end
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