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195 lines
3.1 KiB
ArmAsm
195 lines
3.1 KiB
ArmAsm
.include "../inc/common.i"
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.include "../inc/commonprint.i"
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.include "../inc/net.i"
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.import exit_to_basic
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.import cfg_get_configuration_ptr
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.import dns_set_hostname
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.import dns_resolve
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.import dns_ip
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.import dns_status
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.import sntp_ip
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.import sntp_utc_timestamp
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.import sntp_get_time
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.import __CODE_LOAD__
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.import __CODE_SIZE__
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.import __RODATA_SIZE__
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.import __DATA_SIZE__
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.segment "STARTUP" ;this is what gets put at the start of the file on the C64
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.word basicstub ; load address
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basicstub:
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.word @nextline
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.word 2003
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.byte $9e
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.byte <(((init / 1000) .mod 10) + $30)
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.byte <(((init / 100 ) .mod 10) + $30)
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.byte <(((init / 10 ) .mod 10) + $30)
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.byte <(((init ) .mod 10) + $30)
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.byte 0
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@nextline:
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.word 0
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.segment "EXEHDR" ;this is what gets put an the start of the file on the Apple 2
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.addr __CODE_LOAD__-$11 ; Start address
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.word __CODE_SIZE__+__RODATA_SIZE__+__DATA_SIZE__+4 ; Size
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jmp init
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.code
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init:
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jsr test_vlb
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jsr print_cr
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init_ip_via_dhcp
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jsr print_ip_config
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ldax #time_server_msg
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jsr print
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ldax #time_server_host
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jsr print
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jsr print_cr
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ldax #time_server_host
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jsr dns_set_hostname
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bcs @dns_error
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jsr dns_resolve
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bcs @dns_error
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ldx #3 ; set destination address
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: lda dns_ip,x
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sta sntp_ip,x
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dex
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bpl :-
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ldax #sending_query
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jsr print
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ldax #sntp_ip
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jsr print_dotted_quad
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jsr print_cr
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jsr sntp_get_time
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bcc @ok
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ldax #sntp_error
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jmp @print_error
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@ok:
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ldy #3
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:
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lda sntp_utc_timestamp,y
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jsr print_hex
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dey
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bpl :-
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jmp exit_to_basic
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@dns_error:
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ldax #dns_error
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@print_error:
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jsr print
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jsr print_errorcode
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jmp exit_to_basic
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.bss
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vla: .res 4
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vlb: .res 4
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quotient: .res 4
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remainder: .res 4
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.code
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div_32_32:
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lda #0
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sta remainder
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sta remainder+1
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sta remainder+2
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sta remainder+3
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ldx #32
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@loop:
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asl vla
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rol vla+1
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rol vla+2
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rol vla+3
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rol remainder
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rol remainder+1
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rol remainder+2
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rol remainder+3
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sec
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lda remainder+0
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sbc vlb+0
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sta remainder+0
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lda remainder+1
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sbc vlb+1
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sta remainder+1
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lda remainder+2
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sbc vlb+2
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sta remainder+2
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lda remainder+3
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sbc vlb+3
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sta remainder+3
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bcs @next
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lda remainder
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adc vlb
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sta remainder
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lda remainder+1
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adc vlb+1
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sta remainder+1
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lda remainder+2
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adc vlb+2
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sta remainder+2
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lda remainder+3
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adc vlb+3
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sta remainder+3
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@next:
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rol quotient
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rol quotient+1
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rol quotient+2
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rol quotient+3
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dex
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bpl @loop
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rts
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.rodata
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test_vlb:
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ldx #7
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:
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lda divs,x
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sta vla,x
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dex
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bpl :-
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jsr div_32_32
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.byte $92
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time_server_msg:
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.byte "TIME SERVER : ",0
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time_server_host:
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.byte "202.174.101.10",0
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.byte "1.AU.POOL.SNTP.ORG",0
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sending_query:
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.byte "SENDING SNTP QUERY TO ",0
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sntp_error:
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.byte "ERROR DURING SNTP QUERY",13,0
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dns_error:
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.byte "ERROR RESOLVING HOSTNAME",13,0
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divs:
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.byte $02,$30,$00,$00
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.byte $05,$00,$00,$00
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