2023-10-26 19:51:20 +02:00
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;********************************************************************************
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; @module system
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; @type header
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; @details
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; Variable definitions for the current hardware setup
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;********************************************************************************
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.ifndef INCLUDE_SYSTEM
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INCLUDE_SYSTEM = 1
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; reserved RAM addresses
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; 00-0f - free
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; 10-1f - arguments / return values
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; 20-ff - free
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; 0100 - 01FF Stack
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; 0200,0201 keybuffer write/read pointer
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2023-10-28 03:48:27 +02:00
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; 0202-02ff keybuffer
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2023-10-26 19:51:20 +02:00
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; 0300 lcd character counter
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; 0400, 0401, 0402 dht status, dht bit, dht_bit_rot
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; 0403 value offset
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2023-10-28 03:48:27 +02:00
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; 0405-04a0 rh high/low, temp high/low, checksum
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2023-10-26 19:51:20 +02:00
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2023-11-11 12:12:03 +01:00
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.include "io_W65C22.h65"
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.include "utility.h65"
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2023-10-26 19:51:20 +02:00
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; ARGUMENTS
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; a,x,y can also be used
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2023-11-11 12:12:03 +01:00
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.segment "ZEROPAGE"
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ARG0: .res 1
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ARG1: .res 1
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ARG2: .res 1
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ARG3: .res 1
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ARG4: .res 1
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ARG5: .res 1
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ARG6: .res 1
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ARG7: .res 1
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ARG9: .res 1
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ARG10: .res 1
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ARG11: .res 1
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ARG12: .res 1
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ARG13: .res 1
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ARG14: .res 1
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ARG15: .res 1
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2023-10-26 19:51:20 +02:00
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; RETURN VALUE
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; in a
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2023-11-11 12:12:03 +01:00
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.segment "VIA1"
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; IO1: .res 16
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2023-10-26 19:51:20 +02:00
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IO1 = $6000
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2023-11-11 12:12:03 +01:00
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.segment "VIA2"
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; IO2: .res 16
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2023-10-26 19:51:20 +02:00
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IO2 = $7000
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; struct method
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2023-10-27 16:50:58 +02:00
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; .org $6000
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; VIA1: .tag VIA_Pins
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; .org $7000
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; VIA2: .tag VIA_Pins
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2023-10-26 19:51:20 +02:00
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2023-10-27 16:50:58 +02:00
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; ; IO-1
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; PB1 = $6000
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; PA1 = $6001
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; DDRB1 = $6002
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; DDRA1 = $6003
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; T1L1 = $6004
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; T1H1 = $6005
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; ; IO-2
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; PB2 = $7000
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; PA2 = $7001
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; DDRB2 = $7002
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; DDRA2 = $7003
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; T1L2 = $7004
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; T1H2 = $7005
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; ACR2 = $700b
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; PCR2 = $700c
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; IFR2 = $700d
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; IER2 = $700e
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2023-10-26 19:51:20 +02:00
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.endif ; include guard
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