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Move more common code into rwcommon.s.

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Move declaration of __errno into errno.inc.


git-svn-id: svn://svn.cc65.org/cc65/trunk@1552 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-11-20 18:14:35 +00:00
parent cfbe5ec5b4
commit cd552515fb
5 changed files with 18 additions and 30 deletions
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2
libsrc/cbm/close.s
View File

@ -8,7 +8,7 @@
.import CLOSE
.import readdiskerror, closecmdchannel
.import __errno, __oserror
.import __oserror
.importzp tmp2
.include "errno.inc"

2
libsrc/cbm/open.s
View File

@ -10,7 +10,7 @@
.import addysp, popax
.import scratch, fnparse, fncomplete, fnset
.import opencmdchannel, closecmdchannel, readdiskerror
.import __errno, __oserror
.import __oserror
.import fnunit
.importzp sp, tmp2, tmp3

15
libsrc/cbm/read.s
View File

@ -10,10 +10,9 @@
.import SETLFS, OPEN, CHKIN, BASIN, CLRCH, READST
.import rwcommon
.import popax
.import __errno, __oserror
.import __oserror
.importzp ptr1, ptr2, ptr3, tmp1, tmp2, tmp3
.include "errno.inc"
.include "fcntl.inc"
.include "cbm.inc"
.include "filedes.inc"
@ -42,7 +41,7 @@
.proc _read
jsr rwcommon ; Pop params, check handle
bcs invalidfd ; Branch if handle not ok
bcs errout ; Invalid handle, errno already set
; Check if the LFN is valid and the file is open for writing
@ -122,15 +121,6 @@ eof: lda ptr3
ldx ptr3+1
rts
; Error entry, file descriptor is invalid
invalidfd:
lda #EINVAL
sta __errno
lda #0
sta __errno+1
beq errout
; Error entry, file is not open
notopen:
@ -149,4 +139,3 @@ errout: lda #$FF

15
libsrc/cbm/rwcommon.s
View File

@ -9,6 +9,7 @@
.import popax
.importzp ptr1, ptr2, ptr3, tmp2
.include "errno.inc"
.include "filedes.inc"
@ -36,11 +37,19 @@
sta ptr3+1 ; Clear ptr3
jsr popax ; Get the handle
sta tmp2
cpx #$01
bcs inv
bcs invhandle
cmp #MAX_FDS
inv: rts
bcs invhandle
sta tmp2
rts ; Return with carry clear
invhandle:
lda #EINVAL
sta __errno
lda #0
sta __errno+1
rts ; Return with carry set
.endproc

14
libsrc/cbm/write.s
View File

@ -9,10 +9,9 @@
.import SETLFS, OPEN, CKOUT, BSOUT, CLRCH
.import rwcommon
.import __errno, __oserror
.import __oserror
.importzp sp, ptr1, ptr2, ptr3
.include "errno.inc"
.include "fcntl.inc"
.include "cbm.inc"
.include "filedes.inc"
@ -46,7 +45,7 @@
.proc _write
jsr rwcommon ; Pop params, check handle
bcs invalidfd ; Branch if handle not ok
bcs errout ; Invalid handle, errno already set
; Check if the LFN is valid and the file is open for writing
@ -95,15 +94,6 @@
ldx ptr3+1
rts
; Error entry, file descriptor is invalid
invalidfd:
lda #EINVAL
sta __errno
lda #0
sta __errno+1
beq errout
; Error entry, file is not open
notopen: