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disasm: copy file space check

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This commit is contained in:
Joshua Bell 2018-12-23 10:48:17 -08:00
parent 9c254838e2
commit 1e1adb77f9
1 changed files with 39 additions and 24 deletions
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63
desktop/desktop_main.s
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@ -10926,52 +10926,64 @@ L9BFF: .word 0
done: rts
.proc check_space
;; Size of source
: yax_call JT_MLI_RELAY, GET_FILE_INFO, file_info_params2
beq :+
jsr show_error_alert
jmp :-
;; If destination doesn't exist, 0 blocks will be reclaimed.
: lda #0
sta L9CD8
sta L9CD8+1
sta existing_size
sta existing_size+1
;; Does destination exist?
: yax_call JT_MLI_RELAY, GET_FILE_INFO, file_info_params3
beq L9C48
beq got_exist_size
cmp #ERR_FILE_NOT_FOUND
beq L9C54
jsr show_error_alert_dst
beq :+
jsr show_error_alert_dst ; retry if destination not present
jmp :-
L9C48: copy16 file_info_params3::blocks_used, L9CD8
L9C54: lda path_buf_main
got_exist_size:
copy16 file_info_params3::blocks_used, existing_size
;; Compute destination volume path
: lda path_buf_main
sta saved_length
ldy #1
L9C5C: iny
ldy #1 ; search for second '/'
: iny
cpy path_buf_main
bcs has_room
lda path_buf_main,y
cmp #'/'
bne L9C5C
bne :-
tya
sta path_buf_main
sta L9CD7
L9C70: yax_call JT_MLI_RELAY, GET_FILE_INFO, file_info_params3
beq L9C95
pha
lda saved_length
sta vol_path_length
;; Total blocks/used blocks on destination volume
: yax_call JT_MLI_RELAY, GET_FILE_INFO, file_info_params3
beq got_info
pha ; on failure, restore path
lda saved_length ; in case copy is aborted
sta path_buf_main
pla
jsr show_error_alert_dst
jmp L9C70
jmp :- ; BUG: Does this need to assign length again???
lda L9CD7
lda vol_path_length
sta path_buf_main
jmp L9C70
jmp :-
;; Unused???
jmp close_files_cancel_dialog
L9C95: sub16 file_info_params3::aux_type, file_info_params3::blocks_used, L9CD4
add16 L9CD4, L9CD8, L9CD4
cmp16 L9CD4, file_info_params2::blocks_used
got_info:
;; aux = total blocks
sub16 file_info_params3::aux_type, file_info_params3::blocks_used, blocks_free
add16 blocks_free, existing_size, blocks_free
cmp16 blocks_free, file_info_params2::blocks_used
bcs has_room
;; not enough room
@ -10984,11 +10996,14 @@ has_room:
sta path_buf_main
rts
L9CD4: .word 0
blocks_free:
.word 0
saved_length:
.byte 0
L9CD7: .byte 0
L9CD8: .word 0
vol_path_length:
.byte 0
existing_size:
.word 0
.endproc
.endproc