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fix prodos file delete bug

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This commit is contained in:
April Ayres-Griffiths 2018-06-27 17:57:09 +10:00
parent 358c50662f
commit e38cb58d37
1 changed files with 14 additions and 6 deletions
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20
disk/diskimagepd.go
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@ -2,7 +2,6 @@ package disk
import (
"errors"
"fmt"
"regexp"
"strings"
"time"
@ -193,9 +192,9 @@ func (fd *VDH) Publish(dsk *DSKWrapper) error {
for i, v := range fd.Data {
bd[fd.blockoffset+i] = v
}
fmt.Printf("Writing dir header at block %d\n", fd.blockid)
//fmt.Printf("Writing dir header at block %d\n", fd.blockid)
fmt.Printf("Data=%v\n", bd)
//fmt.Printf("Data=%v\n", bd)
return dsk.PRODOSWrite(fd.blockid, bd)
}
@ -324,6 +323,9 @@ func (vb ProDOSVolumeBitmap) IsBlockFree(b int) bool {
}
func (vb ProDOSVolumeBitmap) SetBlockFree(b int, free bool) {
//log.Printf("Freeing block %d", b)
bidx := b / 8
bit := 7 - (b % 8)
setmask := byte(1 << uint(bit))
@ -1390,10 +1392,16 @@ func (dsk *DSKWrapper) PRODOSDeleteFile(path string, name string) error {
return err
}
maxBlocks := 1600
if len(dsk.Data) == STD_DISK_BYTES {
maxBlocks = 280
}
i := 0
b := int(ib[2*i+0]) + 256*int(ib[2*i+1])
for i < 256 && b != 0 {
b = int(ib[2*i+0]) + 256*int(ib[2*i+1])
b := int(ib[i]) + 256*int(ib[256+i])
for i < 256 && b != 0 && b <= maxBlocks {
removeBlocks = append(removeBlocks, b)
b = int(ib[i]) + 256*int(ib[256+i])
i++
}
}