20 lines
409 B
ArmAsm
20 lines
409 B
ArmAsm
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;;
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;; Official Kernal routine, described in:
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;;
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;; - [RG64] C64 Programmer's Reference Guide - page 295
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;; - [CM64] Compute's Mapping the Commodore 64 - page 215
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;;
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;; CPU registers that has to be preserved (see [RG64]): .A
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;;
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screen:
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;; There are only 2 sane ways to implement this routine,
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;; I hope this one is different than what Commodore picked :)
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ldy #25 ; 25 columns
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ldx #40 ; 40 rows
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rts
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