dos33fsprogs/mist/loadstore.s
Vince Weaver bb9477b4f2 mist: loadgame -- was loading too much
noticed because it over-wrote sound status
2020-07-27 14:17:23 -04:00

135 lines
1.8 KiB
ArmAsm

;===================================
;===================================
; load the game
;===================================
;===================================
load_game:
bit KEYRESET ; clear keyboard buffer
bit SET_TEXT ; set text mode
lda #' '|$80
sta clear_all_color+1
jsr clear_all ; clear screen
lda #<load_message
sta OUTL
lda #>load_message
sta OUTH
jsr move_and_print
lda #<are_you_sure
sta OUTL
lda #>are_you_sure
sta OUTH
jsr move_and_print
jsr page_flip
wait_load_confirmation:
lda KEYPRESS
bpl wait_load_confirmation
bit KEYRESET ; clear keypress
and #$7f
cmp #'Y'
bne done_load
; actually load it
lda #<save_filename
sta OUTL
lda #>save_filename
sta OUTH
jsr opendir_filename
; copy to zero page
ldx #0
load_loop:
lda $e00,X
sta WHICH_LOAD,X
inx
cpx #(END_OF_SAVE-WHICH_LOAD)
bne load_loop
lda #$ff
sta LEVEL_OVER
done_load:
bit SET_GR ; turn graphics back on
rts
;===================================
;===================================
; save the game
;===================================
;===================================
; doesn't do anything yet
save_game:
bit KEYRESET ; clear keyboard buffer
bit SET_TEXT ; set text mode
lda #' '|$80
sta clear_all_color+1
jsr clear_all ; clear screen
lda #<save_message
sta OUTL
lda #>save_message
sta OUTH
jsr move_and_print
lda #<are_you_sure
sta OUTL
lda #>are_you_sure
sta OUTH
jsr move_and_print
jsr page_flip
wait_save_confirmation:
lda KEYPRESS
bpl wait_save_confirmation
bit KEYRESET ; clear keypress
and #$7f
cmp #'Y'
bne done_load
; actually load it
done_store:
bit SET_GR ; turn graphics back on
rts
load_message:
.byte 10,5,"LOAD GAME FROM DISK",0
save_message:
.byte 11,5,"SAVE GAME TO DISK",0
are_you_sure:
.byte 10,7,"ARE YOU SURE? (Y/N)",0
save_filename:
.byte "SAVE0",0