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55 lines
2.6 KiB
Plaintext
55 lines
2.6 KiB
Plaintext
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; See the LICENSE file for distribution terms (Apache 2.0).
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;
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; Parts taken from multiple sources:
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; cc65 2.17, libsrc/c65/kernal.s
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; Copyright Ullrich von Bassewitz (BSD license)
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; "Commodore 64 ROM Addresses", author unknown; found on web:
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; http://commodore64.se/wiki/index.php/Commodore_64_ROM_Addresses
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; "Important JSRs", by Vbas
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; https://www.lemon64.com/forum/viewtopic.php?t=68960
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*SYNOPSIS C64 Kernal addresses and constants
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;
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; C64 Kernal jump table
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;
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CINT @ $FF81 ;init editor & video chip
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IOINIT @ $FF84 ;init I/O devices, ports, and timers
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RAMTAS @ $FF87 ;init ram and buffers
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RESTOR @ $FF8A ;restore default I/O vectors
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VECTOR @ $FF8D ;read/set I/O vector table
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SETMSG @ $FF90 ;set Kernal message control flag
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SECOND @ $FF93 ;send SA after listen
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TKSA @ $FF96 ;send SA after talk
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MEMTOP @ $FF99 ;set/read system RAM top
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MEMBOT @ $FF9C ;set/read system RAM bottom
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SCNKEY @ $FF9F ;scan keyboard
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SETTMO @ $FFA2 ;set timeout for IEEE bus
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ACPTR @ $FFA5 ;handshake serial byte in
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CIOUT @ $FFA8 ;handshake serial byte out
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UNTLK @ $FFAB ;command serial bus UNTALK
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UNLSN @ $FFAE ;command serial bus UNLISTEN
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LISTEN @ $FFB1 ;command serial bus LISTEN
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TALK @ $FFB4 ;command serial bus TALK
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READST @ $FFB7 ;read I/O status word
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SETLFS @ $FFBA ;set logical file parameters
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SETNAM @ $FFBD ;set filename
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OPEN @ $FFC0 ;($031A/iopen) open logical file
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CLOSE @ $FFC3 ;($031C/iclose) close logical file
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CHKIN @ $FFC6 ;($031E/ichkin) define input channel
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CKOUT @ $FFC9 ;($0320/ichkout) define output channel
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CLRCH @ $FFCC ;($0322/iclrch) restore default devices
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BASIN @ $FFCF ;($0324/ichrin) input vector, chrin
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BSOUT @ $FFD2 ;($0326/ichrout) output vector, chrout
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LOAD @ $FFD5 ;load from device
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SAVE @ $FFD8 ;save to device
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SETTIM @ $FFDB ;set real-time clock
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RDTIM @ $FFDE ;read real-time clock
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STOP @ $FFE1 ;($0328/istop) check the STOP key
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GETIN @ $FFE4 ;($032A/igetin) get from keyboard
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CLALL @ $FFE7 ;($032C/iclall) close all channels and files
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UDTIM @ $FFEA ;update real-time clock
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SCREEN @ $FFED ;return screen organization
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PLOT @ $FFF0 ;read/set cursor X/Y position
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IOBASE @ $FFF3 ;return I/O base address
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