mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 19:29:37 +00:00
130 lines
3.0 KiB
ArmAsm
130 lines
3.0 KiB
ArmAsm
;
|
|
; Colin Leroy-Mira, 2023 <colin@colino.net>
|
|
;
|
|
; int __fastcall__ stat(const char *pathname, struct stat *statbuf);
|
|
;
|
|
|
|
.export _stat
|
|
.import __errno, _open,_close
|
|
.import mli_file_info
|
|
.import popax, pushax, pusha0, incsp2
|
|
.include "zeropage.inc"
|
|
.include "errno.inc"
|
|
.include "fcntl.inc"
|
|
.include "filedes.inc"
|
|
.include "mli.inc"
|
|
.include "stat.inc"
|
|
|
|
_stat:
|
|
; Store statbuf pointer
|
|
sta ptr4
|
|
sta stbuf
|
|
stx ptr4+1
|
|
stx stbuf+1
|
|
|
|
; Clear statbuf
|
|
lda #$00
|
|
ldy #.sizeof(stat)-1
|
|
: sta (ptr4),y
|
|
dey
|
|
bpl :-
|
|
|
|
; Reset errno
|
|
sta ___errno
|
|
|
|
; Store pathname
|
|
jsr popax
|
|
jsr pushax ; Push it back for mli_file_info
|
|
jsr pushax ; and for open
|
|
|
|
jsr mli_file_info
|
|
|
|
bcc got_info
|
|
jmp incsp2 ; Drop filename copy for open
|
|
|
|
got_info:
|
|
; st_dev
|
|
lda DEVNUM
|
|
lsr ; Shift right to cc65 representation
|
|
lsr
|
|
lsr
|
|
lsr
|
|
ldy #stat::st_dev
|
|
sta (ptr4),y
|
|
|
|
; st_mode (S_IFDIR/S_IFREG only)
|
|
lda mliparam + MLI::INFO::FILE_TYPE
|
|
ldy #stat::st_mode
|
|
cmp #$0f
|
|
bne is_reg
|
|
lda #S_IFDIR
|
|
bne set_st_mode
|
|
|
|
is_reg: lda #S_IFREG
|
|
|
|
set_st_mode:
|
|
sta (ptr4),y
|
|
|
|
; st_access through st_create_time
|
|
ldx #MLI::INFO::ACCESS
|
|
ldy #stat::st_access
|
|
: lda mliparam,x
|
|
sta (ptr4),y
|
|
inx
|
|
iny
|
|
cpy #stat::st_create_time + .sizeof(stat::st_create_time)
|
|
bne :-
|
|
|
|
; st_size
|
|
lda #O_RDONLY
|
|
jsr pusha0
|
|
ldy #$04
|
|
jsr _open
|
|
cmp #$FF
|
|
beq done
|
|
pha ; Save file descriptor for closing
|
|
|
|
; Get ProDOS's REF_NUM from file descriptor
|
|
jsr getfd
|
|
; Get file information
|
|
sta mliparam + MLI::EOF::REF_NUM
|
|
lda #GET_EOF_CALL
|
|
ldx #EOF_COUNT
|
|
jsr callmli
|
|
bcs eoferr
|
|
|
|
; Get struct stat in ptr4 back, open destroyed it
|
|
lda stbuf
|
|
ldx stbuf+1
|
|
sta ptr4
|
|
stx ptr4+1
|
|
|
|
; Store size
|
|
ldy #stat::st_size
|
|
lda mliparam + MLI::EOF::EOF
|
|
sta (ptr4),y
|
|
lda mliparam + MLI::EOF::EOF+1
|
|
iny
|
|
sta (ptr4),y
|
|
lda mliparam + MLI::EOF::EOF+2
|
|
iny
|
|
sta (ptr4),y
|
|
|
|
; Close file
|
|
eoferr:
|
|
pla
|
|
ldx #$00
|
|
jsr _close
|
|
|
|
; Set return value if we had an error
|
|
lda ___errno
|
|
beq done
|
|
lda #$FF
|
|
done:
|
|
tax
|
|
rts
|
|
|
|
.bss
|
|
|
|
stbuf: .res 2
|