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megademo: check_email: add timeout

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This commit is contained in:
Vince Weaver 2018-10-22 12:03:13 -04:00
parent 68572d88e4
commit 316c1a5754
1 changed files with 38 additions and 5 deletions
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43
megademo/check_email.s
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@ -207,25 +207,58 @@ ce_patch:
; do_nothing should be 4550
; +1 fallthrough from above
; -23 frame count
; -7 timeout
; -10 keypress
; -2 ldy at top
; -132 move letters
; ===========
; 4407
; 4377
; Try X=13 Y=62 cycles=4403 R4
; Try X=96 Y=9 cycles=4375 R2
nop ; 2
nop
ldy #62 ; 2
emloop1:ldx #13 ; 2
ldy #9 ; 2
emloop1:ldx #96 ; 2
emloop2:dex ; 2
bne emloop2 ; 2nt/3
dey ; 2
bne emloop1 ; 2nt/3
;=====================
; Update Frame Counter
;=====================
; nowrap = 13+10=23
; wrap = 13+10=23
inc FRAME ; 5
lda FRAME ; 3
cmp #60 ; 1Hz ; 2
beq em_wrap ; 3
em_nowrap:
;-1
lda $0 ; nop ; 3
lda $0 ; nop ; 3
nop ; 2
jmp em_wrap_done ; 3
em_wrap:
lda #0 ; 2
sta FRAME ; 3
inc FRAMEH ; 5
em_wrap_done:
;=========================
; timeout after 20s or so?
;=========================
; 7 cycles
em_timeout:
lda FRAMEH ; 3
cmp #20 ; 2
beq em_done ; 3
; -1
;==================
; move letters
;==================