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use always a sector size of 128 for sectors 1 to 3, ignore

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sst_sectsize


git-svn-id: svn://svn.cc65.org/cc65/trunk@1495 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cpg
2002-11-06 23:02:48 +00:00
parent 82696446fc
commit f708a05d61
1 changed files with 14 additions and 2 deletions
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16
libsrc/atari/siocall.s
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@@ -48,14 +48,26 @@
adc #1 adc #1
sta DUNIT ; unit number (d1,d2,d3,...) sta DUNIT ; unit number (d1,d2,d3,...)
ldy #sst_sectsize lda DAUX2 ; high byte sector #
bne _realsz
lda DAUX1
cmp #4 ; sectors 1 to 3 are special (always 128 bytes)
bcs _realsz
lda #$80
sta DBYTLO
asl a
sta DBYTHI
beq _cont
_realsz:ldy #sst_sectsize
lda (ptr1),y lda (ptr1),y
sta DBYTLO sta DBYTLO
iny iny
lda (ptr1),y lda (ptr1),y
sta DBYTHI sta DBYTHI
lda #DISKID ; SIO bus ID of diskette drive _cont: lda #DISKID ; SIO bus ID of diskette drive
sta DDEVIC sta DDEVIC
lda #15 lda #15
sta DTIMLO ; value got from DOS source sta DTIMLO ; value got from DOS source