Use external symbols for the CBM kernal jump table functions. This allows
to emulate these functions on platforms where one or more of these functions are not available (PET, CBM-II). git-svn-id: svn://svn.cc65.org/cc65/trunk@1544 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@@ -1,16 +1,16 @@
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;
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;
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; Ullrich von Bassewitz, 13.09.2001
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;
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; Keyboard polling stuff for the 510.
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;
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.export k_scnkey
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.export SCNKEY
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.importzp tpi2, ktab1, ktab2, ktab3, ktab4
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.include "cbm510.inc"
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.proc k_scnkey
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.proc SCNKEY
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lda #$FF
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sta ModKey
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@@ -50,7 +50,7 @@ L4: lsr a
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sec
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ldy #tpiPortB
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lda (tpi2),y
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rol a
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rol a
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sta (tpi2),y
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ldy #tpiPortA
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lda (tpi2),y
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@@ -102,7 +102,7 @@ End: lda #$7F
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sta (tpi2),y
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ldy #tpiPortB
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lda #$FF
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sta (tpi2),y
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sta (tpi2),y
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rts
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Repeat: dec RepeatDelay
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@@ -130,7 +130,7 @@ PutKey: sta KeyBuf,x
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ldy #tpiPortC
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L1: lda (tpi2),y
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sta KeySave
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lda (tpi2),y
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lda (tpi2),y
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cmp KeySave
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bne L1
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rts
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