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Ahoy 1985 May
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Ahoy_Magazine_85-05_1985_Double_L.d64
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rupert 2
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.txt
)
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Commodore BASIC
|
2022-10-26
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609b
|
25 lines
0 rem << rr17-7 >>
10 rem
20 rem =-=assembler source code=-=
30 rem
210 .;-- save screen to disk --
220 . org $c000
230 . jmp :entry
240 .:save .eq $ffd8 ;s.a. of 'save'
243 .:saddr ;start saving
246 . .db $04 $00
250 .:eaddr ;end saving
253 . .db $07 $e8
256 .:entry
260 . lda :saddr ;hi byte
265 . sta $fc
270 . lda :saddr+$01 ;lo byte
275 . sta $fb
280 . lda #$fb ;zero page
290 . ldx :eaddr+$01 ;lo byte
300 . ldy :eaddr ;hi byte
310 . jsr :save
320 . rts ;to basic
330 .:end
340 . .en