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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.
83 lines
1.8 KiB
ArmAsm
83 lines
1.8 KiB
ArmAsm
!cpu 65816
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PrintInlineL1String = $011000
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PrintInlineL2String = $012000
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PrintInlineDciString = $013000
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* = $1000
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!as
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!rs
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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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!text "01234567"
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jsr PrintInlineRev8String
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!text "76543210"
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jsr PrintInlineNullString
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!text "null-term string",$00
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jsl PrintInlineL1String
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!text $14,"string with length/1"
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jsl PrintInlineL2String
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!text $14,$00,"string with length/2"
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jsl PrintInlineDciString
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!text "DCI strin",$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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!byte $33,$44
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!32 $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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!24 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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!xor $80 {
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data03 !text "AllEight"
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}
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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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!pseudopc $1100 {
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!text "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
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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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} ;!pseudopc
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