mirror of
https://github.com/a2geek/basic-system-cmd.git
synced 2025-01-13 17:30:59 +00:00
Separated pieces out. include is for macros, shared is for code that will be assembled directly. online now uses shared bi-install routine.
This commit is contained in:
Rob Greene
parent
c3df533249
commit
e1f08078e2
17
include/asciih.inc
Normal file
17
include/asciih.inc
Normal file
@ -0,0 +1,17 @@
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;
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; asciih macro
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;
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; Copyright (c) 2015 Rob Greene
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;
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.if .not .definedmacro(asciih)
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; ASCII string with high-bit set
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.macro asciih string
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.repeat .strlen(string),i
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.byte .strat(string,i) | $80
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.endrep
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.endmacro
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.endif
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17
include/asciizh.inc
Normal file
17
include/asciizh.inc
Normal file
@ -0,0 +1,17 @@
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;
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; asciizh macro
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;
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; Copyright (c) 2015 Rob Greene
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;
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.ifndef asciizh
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; ASCII string with high-bit set, terminated by a zero
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.macro asciizh string
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.repeat .strlen(string),i
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.byte .strat(string,i) | $80
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.endrep
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.byte 0
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.endmacro
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.endif
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56
include/basic-system.inc
Normal file
56
include/basic-system.inc
Normal file
@ -0,0 +1,56 @@
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;
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; BASIC.SYSTEM stuff
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;
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; Copyright (c) 2015 Rob Greene
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.ifndef __BASIC_SYSTEM__
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__BASIC_SYSTEM__ = 1
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; BASIC.SYSTEM locations:
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bi_inbuf = $0200
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bi_extrncmd = $be06 ; External command JMP vector
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bi_errout = $be09 ; Handles ONERR or prints error
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bi_printerr = $be0c ; Prints error message; number is in accumulator
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bi_xtrnaddr = $be50 ; Execution address of external command
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bi_xlen = $be52 ; Length of command string-1
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bi_xcnum = $be53 ; BASIC cmd number (external command = 0)
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bi_pbits = $be54 ; Parameter bits allowed (2 bytes)
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bi_fbits = $be56 ; Parameter bits found (2 bytes)
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bi_vslot = $be61 ; Parameter value for 'S'
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bi_vdriv = $be62 ; Parameter value for 'D'
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bi_vpath1 = $be6c ; Pathname 1 buffer
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bi_vpath2 = $be6e ; Pathname 2 buffer
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bi_gosystem = $be70 ; BI MLI call routine
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bi_badcall = $be8b ; Convert MLI erorrs into BASIC.SYSTEM error equivalents
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bi_xreturn = $be9e ; Guaranteed RTS instruction
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bi_ssgprfx = $beac ; SET/GET_PREFIX parameter table
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bi_ssgprfx_buf = $bead ; .. pathname (SET_PREFIX) / data_buffer (GET_PREFIX)
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bi_sonline = $bec6 ; ONLINE parameter table
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bi_sunitnum = $bec7 ; .. SDDD0000 unit number
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bi_sbufadr = $bec8 ; .. LO HI buffer address
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bi_getbufr = $bef5 ; Allocate buffer space; Acc. in = pages; Acc. out = start page
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; Parameter bits flags (note setup for two bytes and for lo/hi usage)
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bi_pfix = $0080 ; Prefix needs fetching, pathname optional
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bi_slot = $0040 ; No parameters to be processed
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bi_rrun = $0020 ; Command only valid during program
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bi_fnopt = $0010 ; Filename is optional
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bi_crflg = $0008 ; CREATE allowed
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bi_t = $0004 ; File type
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bi_fn2 = $0002 ; Filename #2 for RENAME
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bi_fn1 = $0001 ; Filename expected
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bi_ad = $8000 ; Address
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bi_b = $4000 ; Byte
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bi_e = $2000 ; End address
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bi_l = $1000 ; Length
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bi_line = $0800 ; '@' line number
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bi_sd = $0400 ; Slot and drive numbers
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bi_f = $0200 ; Field
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bi_r = $0100 ; Record
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bi_v = $0000 ; Volume number ignored
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.endif
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20
include/dci.inc
Normal file
20
include/dci.inc
Normal file
@ -0,0 +1,20 @@
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;
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; dci macro
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;
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; Copyright (c) 2015 Rob Greene
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;
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.ifndef dci
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; Dextral (right-most) Character Inverted
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.macro dci string
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.repeat .strlen(string),i
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.if .strlen(string) = i
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.byte .strat(string,i) | $80
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.else
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.byte .strat(string,i) & $7f
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.endif
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.endrep
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.endmacro
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.endif
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18
include/monitor.inc
Normal file
18
include/monitor.inc
Normal file
@ -0,0 +1,18 @@
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;
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; Monitor entry points
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;
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; Copyright (c) 2015 Rob Greene
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;
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.ifndef __MONITOR__
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__MONITOR__ = 1
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; MONITOR locations:
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mon_crout = $fd8e
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mon_prbyte = $fdda
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mon_prhex = $fde3
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mon_cout = $fded
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.endif
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46
include/prodos.inc
Normal file
46
include/prodos.inc
Normal file
@ -0,0 +1,46 @@
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;
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; ProDOS stuff
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;
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; Copyright (c) 2015 Rob Greene
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;
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.ifndef __PRODOS__
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__PRODOS__ = 1
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; MLI operation codes
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mli_alloc_int = $40 ; ALLOCATE_INTERRUPT
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mli_dealloc_int = $41 ; DEALLOCATE_INTERRUPT
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mli_read_block = $80 ; READ_BLOCK
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mli_write_block = $81 ; WRITE_BLOCK
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mli_create = $c0 ; CREATE
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mli_destroy = $c1 ; DESTROY
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mli_rename = $c2 ; RENAME
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mli_set_info = $c3 ; SET_FILE_INFO
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mli_get_info = $c4 ; GET_FILE_INFO
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mli_online = $c5 ; ONLINE
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mli_set_prefix = $c6 ; SET_PREFIX
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mli_get_prefix = $c7 ; GET_PREFIX
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mli_open = $c8 ; OPEN
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mli_newline = $c9 ; NEWLINE
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mli_read = $ca ; READ
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mli_write = $cb ; WRITE
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mli_close = $cc ; CLOSE
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mli_flush = $cd ; FLUSH
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mli_set_mark = $ce ; SET_MARK
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mli_get_mark = $cf ; GET_MARK
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mli_set_eof = $d0 ; SET_EOF
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mli_get_eof = $d1 ; GET_EOF
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mli_set_buf = $d2 ; SET_BUF
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mli_get_buf = $d3 ; GET_BUF
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; MLI locations
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mli_entry = $bf00 ; MLI call entry point
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mli_memtabl = $bf58 ; Memory map of lower 48K
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mli_machid = $bf98 ; Machine identification
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mli_iversion = $bffd ; Version # of currently running interpreter
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mli_kversion = $bfff ; Version # of kernel
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.endif
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@ -8,7 +8,7 @@ all: online.bin
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online: online.bin
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online.bin: online.asm
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cl65 -o online.bin -t none --start-addr 0x2000 -l online.asm
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cl65 -l online.lst -v -vm -C ../shared/bi-install.config online.asm -o online.bin
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cp $(TEMPLATE) online.po
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$(JAVA) -jar $(AC) -p online.po online BIN 0x2000 < online.bin
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@ -6,197 +6,30 @@
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.PC02 ; Enable 65C02 instructions
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; ASCII string with high-bit set, terminated by a zero
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.macro asciizh string
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.repeat .strlen(string),i
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.byte .strat(string,i) | $80
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.endrep
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.byte 0
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.endmacro
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; ASCII string with high-bit set
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.macro asciih string
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.repeat .strlen(string),i
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.byte .strat(string,i) | $80
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.endrep
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.endmacro
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; Dextral (right-most) Character Inverted
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.macro dci string
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.repeat .strlen(string),i
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.if .strlen(string) = i
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.byte .strat(string,i) | $80
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.else
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.byte .strat(string,i) & $7f
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.endif
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.endrep
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.endmacro
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; BASIC.SYSTEM locations:
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inbuf = $0200
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extrncmd = $be06 ; External command JMP vector
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xtrnaddr = $be50 ; Execution address of external command
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xlen = $be52 ; Length of command string-1
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xcnum = $be53 ; BASIC cmd number (external command = 0)
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pbits = $be54 ; Parameter bits allowed (2 bytes)
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fbits = $be56 ; Parameter bits found
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vslot = $be61
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vdriv = $be62
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gosystem = $be70
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xreturn = $be9e ; Guaranteed RTS instruction
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sonline = $bec6 ; BASIC.SYSTEM ONLINE parameter table
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sunitnum = $bec7
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sbufadr = $bec8
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getbufr = $bef5
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; Parameter bits flags (note setup for two bytes and for lo/hi usage)
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pfix = $0080 ; Prefix needs fetching, pathname optional
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slot = $0040 ; No parameters to be processed
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rrun = $0020 ; Command only valid during program
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fnopt = $0010 ; Filename is optional
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crflg = $0008 ; CREATE allowed
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t = $0004 ; File type
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fn2 = $0002 ; Filename #2 for RENAME
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fn1 = $0001 ; Filename expected
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ad = $8000 ; Address
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b = $4000 ; Byte
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e = $2000 ; End address
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l = $1000 ; Length
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line = $0800 ; '@' line number
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sd = $0400 ; Slot and drive numbers
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f = $0200 ; Field
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r = $0100 ; Record
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v = $0000 ; Volume number ignored
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; MONITOR locations:
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crout = $fd8e
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prbyte = $fdda
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prhex = $fde3
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cout = $fded
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; Application stuff:
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cptr = $0c ; Code pointer
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dptr = $0e ; Data pointer
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buffer = inbuf
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codelen = (_CodeEndAddress - _CodeBeginAddress)
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.include "../include/basic-system.inc"
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.include "../include/monitor.inc"
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.include "../include/asciih.inc"
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.include "../include/prodos.inc"
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.org $2000
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; Setup the installer code ...
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install:
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.define CMDNAME "ONLINE"
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.define HOOKADDR nextcmd
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.include "../shared/bi-install.asm"
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; Requires 65C02 or later:
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sed
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lda #$99
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clc
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adc #$01
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cld
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bpl @not6502
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@6502:
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jsr printz
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asciizh "ERR: MUST HAVE ENHANCED //E, //C, OR IIGS"
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rts
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; Get address from BASIC.SYSTEM:
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@not6502:
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lda #1
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jsr getbufr
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bcc @gotmem
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@nomem:
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jsr printz
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asciizh "UNABLE TO ALLOCATE MEMORY"
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rts
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@gotmem:
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sta cptr+1
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stz cptr
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; Move code to destination address:
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ldy #0
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: lda _CodeStartAddress,y
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sta (cptr),y
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iny
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bne :-
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; Application code from here...
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; Patch code for new location - ASSUMES 1 PAGE ONLY!
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ldy #0
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@copy:
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lda (cptr),y
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jsr ilen ; calculate instruction length
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tax
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cpx #3
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bne :+
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iny ; Skip instruction
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dex
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iny ; Skip low byte
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dex
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lda (cptr),y
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cmp #>_CodeBeginAddress
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bne :+
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lda cptr+1
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sta (cptr),y
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: iny ; Skip rest of instruction
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dex
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bne :-
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cpy #codelen
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bcc @copy
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buffer = bi_inbuf
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; Setup BASIC.SYSTEM hooks:
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; 1. Save EXTRNCMD
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lda extrncmd+2
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ldy #<nextcmd+2
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sta (cptr),y
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lda extrncmd+1
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dey
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sta (cptr),y
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; 2. Place our hook into EXTRNCMD
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lda cptr+1
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sta extrncmd+2
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lda #<entry
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sta extrncmd+1
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; Notify user:
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jsr printz
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asciizh "ONLINE COMMAND INSTALLED"
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rts
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printz:
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pla
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sta dptr
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pla
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sta dptr+1
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@L: inc dptr
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bne :+
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inc dptr+1
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: lda (dptr)
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beq @X
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jsr cout
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bra @L
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@X: lda dptr+1
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pha
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lda dptr
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pha
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rts
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.include "../shared/ilen.asm"
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; =======================================
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_CodeStartAddress:
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.org $6000
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.code
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_CodeBeginAddress:
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entry:
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cld ; For BASIC.SYSTEM's happiness
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ldx #cmdlen
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: lda inbuf-1,x
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: lda bi_inbuf-1,x
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cmp #$e0 ; Force input to UPPERCASE for comparison
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bcc :+
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and #$df
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@ -206,20 +39,20 @@ entry:
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bne :--
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; Setup for BASIC.SYSTEM to parse
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opts = fnopt|sd ; Filename is optional (due to glitch) and slot and drive
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opts = bi_fnopt|bi_sd ; Filename is optional (due to glitch) and slot and drive
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lda #cmdlen-1
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sta xlen
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sta bi_xlen
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lda #<online
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sta xtrnaddr
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jsr xreturn
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sta bi_xtrnaddr
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jsr bi_xreturn
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tsx
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lda $100,x ; Retrieve address from stack
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sta xtrnaddr+1
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stz xcnum
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sta bi_xtrnaddr+1
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stz bi_xcnum
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lda #<opts
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sta pbits
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sta bi_pbits
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lda #>opts
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sta pbits+1
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sta bi_pbits+1
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clc
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rts
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@ -244,29 +77,29 @@ nextcmd:
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; S5 D1 ERR=$57 (S7 D1)
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;
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online:
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lda fbits+1
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and #>sd
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lda bi_fbits+1
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and #>bi_sd
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beq @1 ; Bit was NOT set; Acc = 0
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lda vdriv ; 1 or 2, use 2nd bit to toggle drive (then drive 1 has bit off, drive 2 has bit on)
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lda bi_vdriv ; 1 or 2, use 2nd bit to toggle drive (then drive 1 has bit off, drive 2 has bit on)
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and #%00000010
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asl
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asl
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ora vslot
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ora bi_vslot
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asl
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asl
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asl
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asl
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@1: sta sunitnum
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stz sbufadr
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@1: sta bi_sunitnum
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stz bi_sbufadr
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lda #>buffer
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sta sbufadr+1
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sta bi_sbufadr+1
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; Note: if we have a specific unit, the buffer will not be zero terminated -- fake it!
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stz buffer+16
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lda #$C5 ; ONLINE system command
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jsr gosystem
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lda #mli_online
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jsr bi_gosystem
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@continue:
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jsr crout
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jsr mon_crout
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ldx #0
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@loop:
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ldy buffer,x
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@ -278,14 +111,14 @@ online:
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beq @deverr
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tay
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lda #'/'|$80
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: jsr cout
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: jsr mon_cout
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inx
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lda buffer,x
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ora #$80
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dey
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bpl :-
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@adjust:
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jsr crout
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jsr mon_crout
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txa
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and #$0f ; Check if we advanced past this buffer
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beq @loop
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@ -296,7 +129,7 @@ online:
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tax
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bne @loop
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@exit:
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jsr crout
|
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jsr mon_crout
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clc
|
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rts
|
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; A device error message
|
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@ -304,40 +137,40 @@ online:
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ldy #0
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: lda msgERR,y
|
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beq :+
|
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jsr cout
|
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jsr mon_cout
|
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iny
|
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bne :-
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: inx
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lda buffer,x
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tay ; short-term save
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jsr prbyte
|
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jsr mon_prbyte
|
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tya
|
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cmp #$57 ; duplicate volume error
|
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bne @adjust
|
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jsr printspc
|
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lda #'('|$80
|
||||
jsr cout
|
||||
jsr mon_cout
|
||||
inx
|
||||
ldy buffer,x
|
||||
jsr printsd
|
||||
lda #')'|$80
|
||||
jsr cout
|
||||
jsr mon_cout
|
||||
bra @adjust
|
||||
|
||||
printsd:
|
||||
lda #'S'|$80
|
||||
jsr cout
|
||||
jsr mon_cout
|
||||
tya
|
||||
and #$70
|
||||
lsr
|
||||
lsr
|
||||
lsr
|
||||
lsr
|
||||
jsr prhex
|
||||
jsr mon_prhex
|
||||
lda #','|$80
|
||||
jsr cout
|
||||
jsr mon_cout
|
||||
lda #'D'|$80
|
||||
jsr cout
|
||||
jsr mon_cout
|
||||
tya
|
||||
and #$80
|
||||
asl ; Drive 2 will set carry...
|
||||
@ -347,9 +180,9 @@ printsd:
|
||||
printspc:
|
||||
lda #' '|$80
|
||||
_cout:
|
||||
jmp cout
|
||||
jmp mon_cout
|
||||
|
||||
_CodeEndAddress:
|
||||
.data
|
||||
|
||||
msgERR:
|
||||
asciizh "ERR=$"
|
||||
|
||||
@ -8,31 +8,37 @@
|
||||
; Copyright (c) 2015 Rob Greene
|
||||
;
|
||||
|
||||
; Application stuff:
|
||||
|
||||
cptr = $0c ; Code pointer
|
||||
dptr = $0e ; Data pointer
|
||||
; Check required attributes or parameters
|
||||
|
||||
.ifp02
|
||||
.error "Installer requires 65C02 instructions."
|
||||
.endif
|
||||
|
||||
.if .strlen(CMDNAME) = 0
|
||||
.error "Please define CMDNAME with the name of the command (used in installation message)."
|
||||
.endif
|
||||
|
||||
;.ifndef HOOKADDR
|
||||
;.error "Please define HOOKADDR with the location where extern command needs to be placed (assumed to be JMP instruction)."
|
||||
;.endif
|
||||
|
||||
; Zero page
|
||||
|
||||
cptr = $0c ; Code pointer
|
||||
dptr = $0e ; Data pointer
|
||||
|
||||
.include "../include/asciih.inc"
|
||||
.include "../include/asciizh.inc"
|
||||
.include "../include/basic-system.inc"
|
||||
.include "../include/monitor.inc"
|
||||
|
||||
.import __CODE_LOAD__, __CODE_START__, __CODE_SIZE__
|
||||
.import __INIT_LAST__
|
||||
|
||||
.macro bi_install hookaddr
|
||||
|
||||
.if .paramcount <> 1
|
||||
.error "Must include hook address in bi-install macro."
|
||||
.endif
|
||||
.import __CODE_LOAD__, __CODE_SIZE__
|
||||
|
||||
install:
|
||||
|
||||
; Requires 65C02 or later:
|
||||
.segment "RCODE"
|
||||
|
||||
; Requires 65C02 or later - detect bug in decimal mode:
|
||||
sed
|
||||
lda #$99
|
||||
clc
|
||||
@ -62,7 +68,7 @@ install:
|
||||
|
||||
; Move code to destination address:
|
||||
ldy #0
|
||||
: lda __INIT_LAST__,y
|
||||
: lda _ApplicationStartsHere_,y
|
||||
sta (cptr),y
|
||||
iny
|
||||
bne :-
|
||||
@ -93,7 +99,7 @@ install:
|
||||
; Setup BASIC.SYSTEM hooks:
|
||||
; 1. Save EXTRNCMD
|
||||
lda bi_extrncmd+2
|
||||
ldy #<hookaddr+1
|
||||
ldy #<HOOKADDR+2
|
||||
sta (cptr),y
|
||||
lda bi_extrncmd+1
|
||||
dey
|
||||
@ -105,7 +111,8 @@ install:
|
||||
|
||||
; Notify user:
|
||||
jsr printz
|
||||
asciizh "ONLINE COMMAND INSTALLED"
|
||||
asciih CMDNAME
|
||||
asciizh " COMMAND INSTALLED"
|
||||
rts
|
||||
|
||||
printz:
|
||||
@ -126,5 +133,7 @@ printz:
|
||||
pha
|
||||
rts
|
||||
|
||||
.endmacro
|
||||
.include "../shared/ilen.asm"
|
||||
|
||||
_ApplicationStartsHere_:
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
|
||||
MEMORY {
|
||||
INIT: start = $2000, size = $100, define = yes;
|
||||
PGM: start = $2100, size = $100;
|
||||
PGM: start = $2100, size = $100, define = yes;
|
||||
}
|
||||
|
||||
SEGMENTS {
|
||||
|
||||
@ -1,12 +1,12 @@
|
||||
;
|
||||
; ilen-test.asm
|
||||
;
|
||||
; Copyright (c) 2015 Rob Greene
|
||||
;
|
||||
; Semi automated unit test to verify calculated instruction length.
|
||||
; This is paired with the AppleScript program to check for expected results.
|
||||
;
|
||||
|
||||
.PC02 ; Enable 65C02 instructions
|
||||
|
||||
.code
|
||||
|
||||
crout = $fd8e
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
;
|
||||
; ilen.asm
|
||||
;
|
||||
|
||||
.PC02 ; Enable 65C02 instructions
|
||||
; Copyright (c) 2015 Rob Greene
|
||||
;
|
||||
|
||||
;
|
||||
; Calculate Instruction Length
|
||||
@ -15,7 +15,7 @@
|
||||
; Input: Acc. = instruction
|
||||
; Output: Acc. = length
|
||||
;
|
||||
.proc ilen
|
||||
ilen:
|
||||
bit #%10011111 ; Normal instructions have at least one of these bits set
|
||||
beq @column0 ; None are set, column 0 special cases ($00 / $20 / $40 / $60)
|
||||
@normal: ; "Normal" values for ALL columns 0-F
|
||||
@ -46,6 +46,5 @@
|
||||
@two:
|
||||
lda #2
|
||||
rts
|
||||
.endproc
|
||||
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user