mirror of
https://github.com/Michaelangel007/apple2_russian_peasant_multiplication.git
synced 2024-12-21 14:30:06 +00:00
101 lines
1.7 KiB
PHP
101 lines
1.7 KiB
PHP
; Version 2
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; DB -> DFB
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; ca65
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.feature c_comments
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.linecont +
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.feature labels_without_colons
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.feature leading_dot_in_identifiers
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.PC02 ; 65C02
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; Fix ca65's crappy out-of-the-box support for old assembler directives -- which are completely missing!
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; Force APPLE 'text' to have high bit on
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; Will display as NORMAL characters
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.macro ASC text
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.repeat .strlen(text), I
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.byte .strat(text, I) | $80
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.endrep
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.endmacro
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; Define Double Byte -- Big Endian, high-byte first, low-byte second
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.macro DDB words
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.endmacro
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; Define Byte
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.macro DFB byte1,byte2,byte3,byte4,byte5,byte6,byte7,byte8,byte9,byte10
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.ifnblank byte1
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.byte byte1
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.endif
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.ifnblank byte2
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.byte byte2
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.endif
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.ifnblank byte3
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.byte byte3
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.endif
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.ifnblank byte4
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.byte byte4
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.endif
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.ifnblank byte5
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.byte byte5
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.endif
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.ifnblank byte6
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.byte byte6
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.endif
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.ifnblank byte7
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.byte byte7
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.endif
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.ifnblank byte8
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.byte byte8
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.endif
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.ifnblank byte9
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.byte byte9
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.endif
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.ifnblank byte10
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.byte byte10
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.endif
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.endmacro
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.macro DW words
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.word words
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.endmacro
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; DS 1
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; DS 30, $A0
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.macro DS length, fillval
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.ifblank fillval
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.res length
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.else
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.res length, fillval
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.endif
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.endmacro
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; MAIN EQU *
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.define equ =
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.define EQU =
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; ORG *+256
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;
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; DATA EQU *
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; ORG DATA+256
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.macro ORG address
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; work around that
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; .res address-*
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; doesn't work due to bogus "Error: Constant expression expected"
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.local _pc_
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_pc_:
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.if .const(_pc_)
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.out .sprintf( "Current * = %04X, Reserving $%04X Bytes, New * = $%04X", _pc_, (address-_pc_), address )
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.res (address - _pc_),$EA
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.else
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.org address
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.endif
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.endmacro
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