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multidrive support

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git-svn-id: svn://svn.cc65.org/cc65/trunk@778 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
izydorst 2001-07-13 15:58:12 +00:00
parent 56463fe3d5
commit baf977dfd8
2 changed files with 18 additions and 3 deletions
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3
libsrc/geos/disk/Makefile
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@ -12,7 +12,8 @@ S_OBJS = blkalloc.o calcblksfree.o changediskdevice.o chkdkgeos.o enterturbo.o e
nxtblkalloc.o opendisk.o purgeturbo.o putblock.o putdirhead.o readblock.o\
readbuff.o setnextfree.o setgeosdisk.o writeblock.o writebuff.o verwriteblock.o\
gettrse.o\
dio_openclose.o dio_cts.o dio_stc.o dio_read.o dio_write.o dio_writev.o
dio_openclose.o dio_cts.o dio_stc.o dio_read.o dio_write.o dio_writev.o\
dio_params.o
all: $(S_OBJS)

18
libsrc/geos/disk/dio_params.s
View File

@ -3,11 +3,14 @@
; 2.7.2001
;
; this function is used by dio_read and dio_write to fix parameters (secnum)
;
; this function calls SetDevice so that more than one drive can be used at once
.import popax,pushax,_dio_log_to_phys
.importzp ptr1
.export dio_params,dio_secnum
.include "../inc/geossym.inc"
.include "../inc/geossym.inc"
.include "../inc/jumptab.inc"
.include "../inc/dio.inc"
.bss
dio_secnum: .res 2
@ -21,6 +24,17 @@ dio_secnum: .res 2
jsr popax
sta dio_secnum
stx dio_secnum
jsr popax ; get 3rd parameter
jsr pushax ; put it back
sta ptr1
stx ptr1+1
ldy #sst_driveno
lda (ptr1),y
clc
adc #8
jsr SetDevice ; setup device, load driver
lda #<dio_secnum
ldx #>dio_secnum
jsr pushax