mirror of
https://github.com/bobbimanners/emailler.git
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git-svn-id: http://svn.code.sf.net/p/netboot65/code@303 93682198-c243-4bdb-bd91-e943c89aac3b
This commit is contained in:
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commit
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@ -24,19 +24,15 @@ all: $(DRIVERS)
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apple2prog.lib: a2print.o uthernet.o a2timer.o a2kernal.o a2input.o a2charconv.o cs8900a.o
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apple2prog.lib: a2print.o uthernet.o a2timer.o a2kernal.o a2input.o a2charconv.o cs8900a.o
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ar65 a $@ $^
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ar65 a $@ $^
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c64rrnet.lib: c64print.o rr-net.o c64timer.o c64kernal.o c64inputs.o c64_disk_access.o c64charconv.o c64_vt100.o cs8900a.o
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c64rrnet.lib: c64print.o rr-net.o c64timer.o c64kernal.o c64inputs.o cbm_disk_access.o petscii_charconv.o c64_vt100.o cs8900a.o
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ar65 a $@ $^
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ar65 a $@ $^
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c64wiznet.lib: w5100.o c64print.o c64timer.o c64kernal.o c64inputs.o c64_disk_access.o c64charconv.o c64_vt100.o
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c64wiznet.lib: w5100.o c64print.o c64timer.o c64kernal.o c64inputs.o cbm_disk_access.o petscii_charconv.o c64_vt100.o
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ar65 a $@ $^
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ar65 a $@ $^
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vic20rrnet.lib: c64print.o vic20-rr-net.o vic20timer.o c64kernal.o c64inputs.o c64_disk_access.o c64charconv.o cs8900a.o
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vic20rrnet.lib: vic20print.o vic20-rr-net.o vic20timer.o cbm_disk_access.o petscii_charconv.o cs8900a.o
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ar65 a $@ $^
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ar65 a $@ $^
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# ar65 a $@ $^
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clean:
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clean:
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rm -f *.o
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rm -f *.o
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rm -f *.lib
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rm -f *.lib
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@ -7,7 +7,7 @@
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.export timer_init
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.export timer_init
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.export timer_read
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.export timer_read
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.export timer_seconds ; this should return a single BCD byte (00..59) which is a count of seconds
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.code
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.code
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; initialize timers
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; initialize timers
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@ -28,8 +28,14 @@ timer_init:
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lda #$c1 ; timer B to count timer A underflows
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lda #$c1 ; timer B to count timer A underflows
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sta $dd0f
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sta $dd0f
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lda #0
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sta $dc08
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sta $dc09
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rts
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rts
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timer_seconds:
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lda $dc09
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rts
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; return the current value
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; return the current value
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timer_read:
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timer_read:
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@ -1,76 +0,0 @@
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; timer routines
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;
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; the timer should be a 16-bit counter that's incremented by about
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; 1000 units per second. it doesn't have to be particularly accurate.
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; this C64 implementation requires the routine timer_vbl_handler be called 60 times per second
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; this is for use in the NB65 ROM, where we also install an IRQ handler
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; for normal userland programs where it is known what else is going on with the timer ,
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; use "c64timer.s" routines instead
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.include "../inc/common.i"
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.export timer_init
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.export timer_read
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.export timer_vbl_handler
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.bss
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current_time_value: .res 2
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.code
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;reset timer to 0
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;inputs: none
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;outputs: none
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timer_init:
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ldax #0
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stax current_time_value
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rts
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;read the current timer value
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; inputs: none
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; outputs: AX = current timer value (roughly equal to number of milliseconds since the last call to 'timer_init')
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timer_read:
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ldax current_time_value
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rts
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; tick over the current timer value - should be called 60 times per second
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; inputs: none
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; outputs: none (all registers preserved, by carry flag can be modified)
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timer_vbl_handler:
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pha
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lda $02A6 ;PAL/NTSC flag (0 = NTSC, 1 = PAL),
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beq @was_ntsc
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lda #$14 ;PAL = 50 HZ =~ 20 ms per 'tick'
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bne :+
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@was_ntsc:
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lda #$11 ;NTSC = 60 HZ =~ 17 ms per 'tick'
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:
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adc current_time_value
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sta current_time_value
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bcc :+
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inc current_time_value+1
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:
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pla
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rts
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;-- LICENSE FOR c64timer_nb65.s --
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; The contents of this file are subject to the Mozilla Public License
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; Version 1.1 (the "License"); you may not use this file except in
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; compliance with the License. You may obtain a copy of the License at
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; http://www.mozilla.org/MPL/
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;
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; Software distributed under the License is distributed on an "AS IS"
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; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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; License for the specific language governing rights and limitations
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; under the License.
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;
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; The Original Code is ip65.
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;
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; The Initial Developer of the Original Code is Jonno Downes,
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; jonno@jamtronix.com.
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; Portions created by the Initial Developer are Copyright (C) 2009
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; Jonno Downes. All Rights Reserved.
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; -- LICENSE END --
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95
client/drivers/vic20print.s
Normal file
95
client/drivers/vic20print.s
Normal file
@ -0,0 +1,95 @@
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.export print_a
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.export print_cr
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.export cls
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.export beep
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.export print_a_inverse
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.import timer_read
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.exportzp screen_current_row
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.exportzp screen_current_col
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screen_current_row=$d6
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screen_current_col=$d3
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;use VIC 20 Kernel ROM function to print a character to the screen
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;inputs: A contains petscii value of character to print
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;outputs: none
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print_a = $ffd2
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.bss
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beep_timer: .res 1
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.code
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;use VIC 20 Kernel ROM function to move to a new line
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;inputs: none
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;outputs: none
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print_cr:
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lda #13
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jmp print_a
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;use VIC 20 Kernel ROM function to clear the screen
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;inputs: none
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;outputs: none
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cls:
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lda #147 ; 'CLR/HOME'
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jmp print_a
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;currently does nothing (should make a 'beep noise')
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;inputs: none
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;outputs: none
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beep:
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lda $900e
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ora #15
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sta $900e ;set volume
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;turn on osc. 3
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lda #$FF
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sta $900c
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; pause for qtr second
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jsr timer_read
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stx beep_timer
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inc beep_timer
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inc beep_timer
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:
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jsr timer_read
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cpx beep_timer
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bne :-
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;turn off osc. 3
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lda #$00
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sta $900c
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rts
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;print a single char in inverse text:
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print_a_inverse:
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pha
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lda #18 ;inverse mode on
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jsr print_a
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pla
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jsr print_a
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lda #146 ;inverse mode off
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jmp print_a
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; The contents of this file are subject to the Mozilla Public License
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; Version 1.1 (the "License"); you may not use this file except in
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; compliance with the License. You may obtain a copy of the License at
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; http://www.mozilla.org/MPL/
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;
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; Software distributed under the License is distributed on an "AS IS"
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; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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; License for the specific language governing rights and limitations
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; under the License.
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;
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; The Original Code is ip65.
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;
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; The Initial Developer of the Original Code is Jonno Downes,
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; jonno@jamtronix.com.
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; Portions created by the Initial Developer are Copyright (C) 2009
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; Jonno Downes. All Rights Reserved.
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; -- LICENSE END --
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@ -9,6 +9,7 @@
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.export timer_init
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.export timer_init
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.export timer_read
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.export timer_read
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.export timer_seconds
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IRQ_VECTOR=$314
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IRQ_VECTOR=$314
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@ -51,7 +52,6 @@ timer_read:
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timer_vbl_handler:
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timer_vbl_handler:
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pha
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pha
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lda #$11 ; 60 HZ =~ 17 ms per 'tick'
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lda #$11 ; 60 HZ =~ 17 ms per 'tick'
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:
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adc current_time_value
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adc current_time_value
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sta current_time_value
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sta current_time_value
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bcc :+
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bcc :+
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pla
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pla
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jmp jmp_old_handler
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jmp jmp_old_handler
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timer_seconds:
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lda #0
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rts
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;-- LICENSE FOR c64timer_nb65.s --
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;-- LICENSE FOR c64timer_nb65.s --
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; The contents of this file are subject to the Mozilla Public License
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; The contents of this file are subject to the Mozilla Public License
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