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https://github.com/AndersBNielsen/abn6502.git
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Tape interface upgrade - still missing housekeeping bits
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.gitignore
vendored
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.gitignore
vendored
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1149
abn6502rom.s
1149
abn6502rom.s
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Load Diff
@ -1,11 +1,13 @@
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#!/bin/bash
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ca65 -vvv --cpu 6502 -l build/listing.txt -o build/abn6502rom.o abn6502rom.s
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#!/bin/zsh
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ca65 -vv --cpu 6502 -l build/listing.txt -o build/abn6502rom.o abn6502rom.s
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ca65 crom.s -o build/crom.o
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ca65 userland.s --cpu 65c02 -l build/userlisting.txt -o build/userland.o
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ld65 -o build/abn6502rom.bin -C memmap.cfg "./build/abn6502rom.o" "./build/crom.o" "./build/userland.o"
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minipro -s -p "SST39SF010A" -w build/abn6502rom.bin
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#minipro -s -p "W27C512@DIP28" -w build/abn6502rom.bin
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#The lines below are used to copy the output to a Raspberry Pi and load it
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ssh openhabian@openhabiandevice.local killall bootload
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scp build/userland.bin openhabian@openhabiandevice.local:./
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ssh openhabian@openhabiandevice.local bootload -s userland.bin
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ssh openhabian@openhabiandevice.local killall bootload
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hardware/6502.csv
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hardware/6502.csv
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Can't render this file because it has a wrong number of fields in line 7.
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hardware/6502.kicad_sch
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hardware/6502.kicad_sch
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hardware/6502.xml
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hardware/6502.xml
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hardware/fp-info-cache
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hardware/fp-info-cache
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@ -1,7 +1,7 @@
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MEMORY {
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ZP: start = $0, size = $100, type = rw, define = yes;
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KBRAM: start = $200, size = $100, define = yes;
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RAM: start = $300, size = $1C00, file = "build/userland.bin";
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KBRAM: start = $200, size = $200, define = yes;
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RAM: start = $400, size = $1C00, file = "build/userland.bin";
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ROM: start = $8000, size = $8000, file = %O;
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CROM: start = $10000, size = $10000, file = "build/crom.bin";
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}
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40
userland.s
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userland.s
@ -2,23 +2,51 @@
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.feature string_escapes ; Allow c-style string escapes when using ca65
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;PRIMM = $FFC8 ; Userland can use ROM subroutines if we tell them where they are. Check listing.txt for current subroutine addresses
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;.require "abn6502rom.s"
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.import scrp: zeropage, scwp: zeropage
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.autoimport + ; Try to import anything unknown from other modules
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PORTB = $6000 ; PB0: SCK/SCL, PB1: RF CS, PB2: RF CE, PB3: SDA, PB4,PB5: MISO ,PB6: PS/2 Clock In, PB7: MOSI/T1 Out (Tape drive output)
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PORTA = $6001
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DDRB = $6002
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DDRA = $6003
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T1CL = $6004
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T1CH = $6005
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T1LL = $6006
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T1LH = $6007
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T2CL = $6008
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T2CH = $6009
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SR1 = $600A
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ACR = $600B ; [7] PB.7 T1 OUT, [6] T1 mode , [5] T2, [4:2] Shift register control, [1] PB Latch enable, [0] PA Latch Enable
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PCR = $600C ; [7:5] CB2 Control, [4] CBl Control, [3:1] CA2 Control, [0] CAl Control
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IFR = $600D ; [7:0] IRQ Tl T2 CBl CB2 SR CA1 CA2
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IER = $600E ; [7:0] S/C Tl T2 CBl CB2 SR CA1 CA2
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MILLIS = $40
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SVP = $42 ; Save pointer
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SVPH =$43
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TMP = $50;
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TMP2 = $51;
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kb_wptr = $00
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kb_rptr = $01
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ESC_KEY = $1b
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.segment "USERLAND"
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userland:
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lda #$0A
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jsr printk
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jsr PRIMM
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.asciiz "Testing CPU...\n"
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.asciiz "Testing CPU... \n"
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cOhtwotest:
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bra see02
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jsr PRIMM
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.asciiz "Hi! Im an NMOS 6502! \n"
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.asciiz "Hi! Im an NMOS 6502! \n"
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jmp exitnow
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see02:
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jsr PRIMM
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.asciiz "Hi! Im a CMOS 65C02! \n"
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.asciiz "Hi! Im a CMOS 65C02! \n\n"
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exitnow:
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jsr PRIMM
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.asciiz "Program finished. Returning to main.\n"
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brk
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brk
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