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dfd5bcab1b
Early data sheets listed BRK as one byte, but RTI after a BRK skips the following byte, effectively making BRK a 2-byte instruction. Sometimes, such as when diassembling Apple /// SOS code, it's handy to treat it that way explicitly. This change makes two-byte BRKs optional, controlled by a checkbox in the project settings. In the system definitions it defaults to true for Apple ///, false for all others. ACME doesn't allow BRK to have an arg, and cc65 only allows it for 65816 code (?), so it's emitted as a hex blob for those assemblers. Anyone wishing to target those assemblers should stick to 1-byte mode. Extension scripts have to switch between formatting one byte of inline data and formatting an instruction with a one-byte operand. A helper function has been added to the plugin Util class. To get some regression test coverage, 2022-extension-scripts has been configured to use two-byte BRK. Also, added/corrected some SOS constants. See also issue #44.
87 lines
1.9 KiB
ArmAsm
87 lines
1.9 KiB
ArmAsm
.setcpu "65816"
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PrintInlineL1String = $011000
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PrintInlineL2String = $012000
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PrintInlineDciString = $013000
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; .segment "SEG000"
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.org $1000
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.a8
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.i8
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clc
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xce
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sep #$30
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jsr PrintInline8String
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.byte "01234567"
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jsr PrintInlineRev8String
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.byte "76543210"
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jsr PrintInlineNullString
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.asciiz "null-term string"
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jsl PrintInlineL1String
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.byte $14,"string with length/1"
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jsl PrintInlineL2String
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.byte $14,$00,"string with length/2"
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jsl PrintInlineDciString
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.byte "DCI strin",$e7
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jsr L10AB
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jsr L110F
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jsr L1108
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.byte $00,$01
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.word data01
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.byte $00,$02
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.word data02
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rts
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PrintInline8String: rts
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PrintInlineRev8String: rts
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PrintInlineNullString: rts
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data01: .word 4386
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.dbyt $3344
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.dword $88776655
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.byte $99,$88,$77,$66
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.byte 'f'
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.byte 'F' | $80
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.byte $40
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.byte $c1
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.byte $42
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.byte $c3
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.byte $44
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.byte $c5
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.byte $46
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.byte $c7
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.faraddr PrintInlineL2String
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.word data02
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.byte $80
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data02: .word data03
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.byte $80
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.macro HiAscii Arg
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.repeat .strlen(Arg), I
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.byte .strat(Arg, I) | $80
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.endrep
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.endmacro
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data03: HiAscii "AllEight"
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L10AB: jsr PrintInlineNullString
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per $8023
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rtl
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.byte $65
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.byte $6e
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.byte $20
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.byte $01
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; .segment "SEG001"
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.org $1100
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.byte "string"
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.byte $00
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.byte $60
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L1108: jsl PrintInlineL2String
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asl A
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.byte $00,$60
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L110F: jsr PrintInlineNullString
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adc $6e
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.byte $64
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