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39 lines
426 B
ArmAsm
39 lines
426 B
ArmAsm
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; Ullrich von Bassewitz, 08.08.1998
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;
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; void screensize (unsigned char* x, unsigned char* y);
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;
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.export _screensize
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.export xsize, ysize
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.import popax
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.importzp ptr1, ptr2
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.proc _screensize
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sta ptr1 ; Store the y pointer
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stx ptr1+1
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jsr popax ; get the x pointer
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sta ptr2
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stx ptr2+1
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ldy #0
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lda xsize
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sta (ptr2),y
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lda ysize
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sta (ptr1),y
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rts
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.endproc
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.bss
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xsize: .res 1
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ysize: .res 1
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