2019-06-26 02:44:39 +00:00
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;license:MIT
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;(c) 2018-9 by 4am
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;
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; common UI functions
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;
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; Public functions
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; - SoftBell
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; - Home
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; - BlankHGR
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; - BlankDHGR
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;
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!zone {
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;------------------------------------------------------------------------------
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; SoftBell
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; yell at the user, but, like, gently
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;
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; in: none
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; out: all registers and flags preserved
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;------------------------------------------------------------------------------
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SoftBell
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php
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pha
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txa
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pha
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ldx #32
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- lda #2
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jsr @wait
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2019-06-27 14:55:07 +00:00
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bit SPEAKER
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2019-06-26 02:44:39 +00:00
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lda #33
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jsr @wait
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2019-06-27 14:55:07 +00:00
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bit SPEAKER
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2019-06-26 02:44:39 +00:00
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dex
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bne -
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pla
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tax
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pla
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plp
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rts
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@wait ; identical to $FCA8 ROM routine, but ROM is switched out when we need it
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sec
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-- pha
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- sbc #1
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bne -
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pla
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sbc #1
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bne --
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rts
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;------------------------------------------------------------------------------
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; Home
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; clear and display text screen (HARDER THAN IT SOUNDS)
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;
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; in: none
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; out: $0106..$011F clobbered
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;------------------------------------------------------------------------------
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Home
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2019-06-27 13:51:17 +00:00
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lda MachineStatus
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2019-06-26 02:44:39 +00:00
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and #SUPPORTS_SHR
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beq @noSHR
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2019-06-27 14:55:07 +00:00
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lda SHADOW
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2019-06-26 02:44:39 +00:00
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ora #$08
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2019-06-27 14:55:07 +00:00
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sta SHADOW ; turn off auxmem-to-bank-E1 shadowing
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lda NEWVIDEO
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2019-06-26 02:44:39 +00:00
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and #$7F
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2019-06-27 14:55:07 +00:00
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sta NEWVIDEO ; get out of SHR mode
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2019-06-26 02:44:39 +00:00
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@noSHR
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ldx #(@end-@start-1)
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- lda @start,x
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sta $106,x
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dex
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bpl -
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jmp $106
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@start
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; this will be run from main memory
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+READ_ROM_NO_WRITE
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2019-06-27 14:55:07 +00:00
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sta CLR80VID ; get out of DHGR mode
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sta DHIRESOFF ; get out of DHGR mode
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jsr ROM_TEXT ; TEXT
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jsr ROM_HOME ; HOME
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2019-06-26 02:44:39 +00:00
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+READ_RAM1_WRITE_RAM1
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rts
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@end
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;------------------------------------------------------------------------------
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; BlankHGR
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; clear and show HGR page 1 without flickering
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;
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; in: none
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; out: text page clobbered (but screen holes preserved)
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; $2000..$3FFF cleared
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;------------------------------------------------------------------------------
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BlankHGR
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jsr Home
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jsr .ClearHGR1 ; clear hi-res screen 1
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2019-06-27 15:37:23 +00:00
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bit PAGE1 ; show hi-res screen 1 (now blank)
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+HGR_MODE
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2019-06-26 02:44:39 +00:00
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rts
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;------------------------------------------------------------------------------
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; BlankDHGR
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; clear and show DHGR page 1 without flickering
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;
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; in: none
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; out: text page clobbered (but screen holes preserved)
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; $2000..$3FFF/main and /aux cleared
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;------------------------------------------------------------------------------
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BlankDHGR
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jsr Home
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jsr .ClearHGR1 ; clear hi-res screen 1
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2019-06-27 14:55:07 +00:00
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sta WRITEAUXMEM
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2019-06-26 02:44:39 +00:00
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jsr .ClearHGR1 ; clear hi-res screen 1 in auxmem
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2019-06-27 14:55:07 +00:00
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sta WRITEMAINMEM
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sta SET80VID
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2019-06-27 15:37:23 +00:00
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bit PAGE1
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+HGR_MODE
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2019-06-27 14:55:07 +00:00
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sta DHIRESON
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2019-06-26 02:44:39 +00:00
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rts
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ExecuteTransitionAndWait
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+STAY @j+1
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@j jsr $FDFD ; SMC call transition effect code
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ldx #$20 ; picture is showing so now we wait
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- lda #0
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jsr WaitForKeyWithTimeout
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bmi +
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dex
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bpl -
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+ rts
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;------------------------------------------------------------------------------
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; .ClearHGR1 [private]
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; clear $2000..$3FFF in current memory bank (main or auxmem)
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2019-06-27 15:37:23 +00:00
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; does not change HGR mode
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2019-06-26 02:44:39 +00:00
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;
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; in: none
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; out: $2000..$3FFF cleared
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; A = 0
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; X = 0
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; Y = 0
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; Z = 1
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;------------------------------------------------------------------------------
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.ClearHGR1
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ldx #$20
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stx @a+2
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lda #0
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tay
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@a sta $2000,y
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iny
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bne @a
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inc @a+2
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dex
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bne @a
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rts
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}
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