|* |* $Id: nkcc-gc.S,v 1.2 2011/05/16 08:43:20 alanh Exp $ |* |* XaAES - XaAES Ain't the AES (c) 1992 - 1998 C.Graham |* 1999 - 2003 H.Robbers |* 2004 F.Naumann & O.Skancke |* |* A multitasking AES replacement for FreeMiNT |* |* This file is part of XaAES. |* |* XaAES is free software; you can redistribute it and/or modify |* it under the terms of the GNU General Public License as published by |* the Free Software Foundation; either version 2 of the License, or |* (at your option) any later version. |* |* XaAES is distributed in the hope that it will be useful, |* but WITHOUT ANY WARRANTY; without even the implied warranty of |* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |* GNU General Public License for more details. |* |* You should have received a copy of the GNU General Public License |* along with XaAES; if not, write to the Free Software |* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |* |*************************************************************************** | | reduced NKCC for the CF-Lib | GNU-C compatible version | |*************************************************************************** |*************************************************************************** | ASSEMBLER CONTROL SECTION |*************************************************************************** VERSION = 0x0294 | NKCC's version NKFf_FUNC = 0x8000 NKFf_RESVD = 0x4000 NKFf_NUM = 0x2000 NKFf_CAPS = 0x1000 NKFf_ALT = 0x0800 NKFf_CTRL = 0x0400 NKFf_SHIFT = 0x0300 | both shift keys NKFb_FUNC = 15 | function NKFb_RESVD = 14 | reserved, ignore it! NKFb_NUM = 13 | numeric pad NKFb_CAPS = 12 | CapsLock NKFb_ALT = 11 | Alternate NKFb_CTRL = 10 | Control NKFb_LSH = 9 | left Shift key NKFb_RSH = 8 | right Shift key NK_UP = 0x01 | cursor up NK_DOWN = 0x02 | cursor down NK_RIGHT = 0x03 | cursor right NK_LEFT = 0x04 | cursor left NK_M_PGUP = 0x05 | Mac: page up NK_M_PGDOWN = 0x06 | Mac: page down NK_M_END = 0x07 | Mac: end NK_INS = 0x0b | Insert NK_CLRHOME = 0x0c | Clr/Home NK_HELP = 0x0e | Help NK_UNDO = 0x0f | Undo NK_M_F11 = 0x1a | Mac: function key #11 NK_M_F12 = 0x1c | Mac: function key #12 NK_M_F14 = 0x1d | Mac: function key #14 NK_ENTER = 0x0a | Enter NK_DEL = 0x1f | Delete |*************************************************************************** | EXPORT |*************************************************************************** .globl _nkc_init | init NKCC .globl _nkc_tos2n | TOS key code converter .globl _nkc_n2tos | NKC to TOS key code converter .globl _nkc_toupper | convert character to upper case .globl _nkc_tolower | convert character to lower case |*************************************************************************** | LOCAL TEXT SECTION |*************************************************************************** |*************************************************************************** | | nk_findscan: find scan code | |*************************************************************************** nk_findscan: btst #NKFb_NUM,d0 | on numeric keypad? beqs search | no -> moveql #0x4a,d1 | yes: try all numeric keypad #ifdef __mcoldfire__ cmpb a0@(d1:l),d0 | scan codes first #else cmpb a0@(d1:w),d0 | scan codes first #endif beqs found1 | it matches -> moveql #0x4e,d1 #ifdef __mcoldfire__ cmpb a0@(d1:l),d0 #else cmpb a0@(d1:w),d0 #endif beqs found1 moveql #0x63,d1 | block starts at 0x63 numsearch: #ifdef __mcoldfire__ cmpb a0@(d1:l),d0 | match? #else cmpb a0@(d1:w),d0 | match? #endif beqs found1 | yes -> #ifdef __mcoldfire__ addql #1,d1 | next scan code #else addqw #1,d1 | next scan code #endif cmpw #0x73,d1 | block end at 0x72 bcss numsearch | continue search -> search: moveql #1,d1 | start with first valid scan code mainsearch: #ifdef __mcoldfire__ cmpb a0@(d1:l),d0 | match? #else cmpb a0@(d1:w),d0 | match? #endif beqs found1 | yes -> #ifdef __mcoldfire__ addql #1,d1 | next scan code #else addqb #1,d1 | next scan code #endif cmpb #0x78,d1 | 0x78 = last valid scan code bcss mainsearch | continue search -> moveql #0,d1 | not found rts found1: tstw d1 | found set CCR rts |*************************************************************************** | GLOBAL TEXT SECTION |*************************************************************************** |*************************************************************************** | | nkc_init: initialize NKCC | |*************************************************************************** _nkc_init: |------------- fetch addresses of TOS' key scan code translation tables moveql #-1,d0 | the function is also used to movel d0,sp@- | change the addresses| values movel d0,sp@- | of -1 as new addresses tell movel d0,sp@- | XBIOS not to change them movew #0x10,sp@- | Keytbl trap #14 | XBIOS lea sp@(0xe),sp | clean stack movel d0,a0 | ^key table structure movel a0@+,pkey_unshift | get ^unshifted table movel a0@+,pkey_shift | get ^shifted table movel a0@,pkey_caps | get ^CapsLock table exit1: movew #VERSION,d0 | load version # rts | bye |*************************************************************************** | | nkc_tconv: TOS key code converter | |*************************************************************************** _nkc_tos2n: movel sp@(4), d0 | Parameter via Stack! #ifdef __mcoldfire__ lea sp@(-12),sp movem.l d2-d4,sp@ | store registers #else movem.l d2-d4,sp@- | store registers #endif |------------- separate TOS key code movel d0,d1 | TOS key code swap d1 | .W = scan code and flags movew d1,d2 | copy #ifdef __mcoldfire__ movel #0xff,d3 | and-mask andl d3,d0 | .B = ASCII code andl d3,d1 | .B = scan code #else movew #0xff,d3 | and-mask andw d3,d0 | .B = ASCII code andw d3,d1 | .B = scan code #endif beq tos306 | scancode=zero (key code created | by ASCII input of TOS 3.06)? -> #ifdef __mcoldfire__ andl #0x1f00,d2 | .W = key flags (in high byte) #else andw #0x1f00,d2 | .W = key flags (in high byte) #endif |------------- decide which translation table to use movew d2,d3 | key flags #ifdef __mcoldfire__ andl #NKFf_SHIFT,d3 | isolate bits for shift keys #else andw #NKFf_SHIFT,d3 | isolate bits for shift keys #endif beqs ktab11 | shift key pressed? no-> movel pkey_shift,a0 | yes: use shift table bras ktab13 | -> ktab11: btst #NKFb_CAPS,d2 | CapsLock? beqs ktab12 | no-> movel pkey_caps,a0 | yes: use CapsLock table bras ktab13 | -> ktab12: movel pkey_unshift,a0 | use unshifted table |------------- check if scan code is out of range | | Illegal scancodes can be used to produce 'macro key codes'. Their format is: | | - the scancode must be 0x84 or larger (should be 0xff to work properly with old | versions of Mag!x) | - the ASCII code must be in the range 0x20...0xff (values below are set to 0x20 | by NKCC) | - Alternate and Control are not used for the normalized key code. However, | if at least one of them is non-zero, then the numeric keypad flag will be | set in the resulting key code. | ktab13: cmpb #0x84,d1 | illegal scan code? bcss ktab14 | no -> movew d2,d1 | flags | andw #NKFf_ALT|NKFf_CTRL,d1 | Alternate or Control? #ifdef __mcoldfire__ andl #0xc00,d1 | Alternate or Control? #else andw #0xc00,d1 | Alternate or Control? #endif beqs special | no -> #ifdef __mcoldfire__ orl #NKFf_NUM,d0 | yes: set numeric keypad flag #else orw #NKFf_NUM,d0 | yes: set numeric keypad flag #endif | and #NKFf_CAPS|NKFf_SHIFT,d2 | mask off both flags #ifdef __mcoldfire__ andl #0x1300,d2 | mask off both flags #else andw #0x1300,d2 | mask off both flags #endif special: #ifdef __mcoldfire__ orl d2,d0 | combine with ASCII code #else orw d2,d0 | combine with ASCII code #endif | orw #NKFf_FUNC|NKFf_RESVD,d0 | set function and resvd #ifdef __mcoldfire__ orl #0x1300,d0 | set function and resvd #else orw #0x1300,d0 | set function and resvd #endif cmpb #0x20,d0 | ASCII code in range? bcc exit2 | yes -> moveb #0x20,d0 | no: use minimum bra exit2 | -> |------------- check if Alternate + number: they have simulated scan codes ktab14: cmpb #0x78,d1 | scan code of Alt + number? bcss scan1 | no-> #ifdef __mcoldfire__ subl #0x76,d1 | yes: calculate REAL scan code moveb a0@(d1:l),d0 | fetch ASCII code orl #NKFf_ALT,d2 | set Alternate flag #else subb #0x76,d1 | yes: calculate REAL scan code moveb a0@(d1:w),d0 | fetch ASCII code orw #NKFf_ALT,d2 | set Alternate flag #endif bra cat_codes | -> add flag byte and exit |------------- check if exception scan code from cursor keypad scan1: lea xscantab,a1 | ^exception scan code table search_scan: movew a1@+,d3 | NKC and scan code bmis tabend | <0? end of table reached -> cmpb d1,d3 | scan code found? bnes search_scan | no: continue search -> #ifdef __mcoldfire__ lsrl #8,d3 | .B = NKC #else lsrw #8,d3 | .B = NKC #endif moveql #0,d0 | mark: key code found bras scan2 | -> tabend: moveql #0,d3 | no NKC found yet |------------- check if rubbish ASCII code and erase it, if so scan2: #ifdef __mcoldfire__ moveb a0@(d1:l),d4 | ASCII code from translation table #else moveb a0@(d1:w),d4 | ASCII code from translation table #endif cmpb #32,d0 | ASCII returned by TOS < 32? bccs scan3 | no -> can't be rubbish cmpb d4,d0 | yes: compare with table entry beqs scan3 | equal: that's ok -> moveql #0,d0 | not equal: rubbish! clear it |------------- check if ASCII code could only be produced via Alternate key | combination scan3: tstb d0 | ASCII code valid? beqs scan4 | no -> cmpb d4,d0 | compare with table entry beqs scan4 | equal: normal key -> | and #!NKFf_ALT,d2 | no: clear Alternate flag #ifdef __mcoldfire__ andl #0xF7FF,d2 | no: clear Alternate flag #else andw #0xF7FF,d2 | no: clear Alternate flag #endif |------------- check if ASCII code found yet, and set it, if not scan4: tstb d0 | found? bnes scan5 | yes -> moveb d3,d0 | no: use code from exception table bnes scan5 | now valid? yes -> moveb d4,d0 | no: use code from transl. table |------------- check special case: delete key scan5: cmpb #127,d0 | ASCII code of Delete? bnes scan6 | no -> moveb #NK_DEL,d0 | yes: set according NKC |------------- check if key is on numeric keypad (via scan code) scan6: cmpb #0x4a,d1 | numeric pad scan code range? beqs numeric | yes -> cmpb #0x4e,d1 beqs numeric | yes -> cmpb #0x63,d1 bcss scan7 | no -> cmpb #0x72,d1 bhis scan7 | no -> numeric: #ifdef __mcoldfire__ orl #NKFf_NUM,d2 | yes: set numeric bit #else orw #NKFf_NUM,d2 | yes: set numeric bit #endif |------------- check if "function key" and set bit accordingly scan7: cmpb #32,d0 | ASCII code less than 32? bccs scan8 | no -> #ifdef __mcoldfire__ orl #NKFf_FUNC,d2 | yes: set function bit #else orw #NKFf_FUNC,d2 | yes: set function bit #endif |------------- check special case: Return or Enter key cmpb #13,d0 | Return or Enter key? bnes scan8 | no -> btst #NKFb_NUM,d2 | yes: from the numeric pad? beqs scan8 | no -> it's Return, keep code moveql #NK_ENTER,d0 | yes: it's Enter| new code |------------- check if function key (F1-F10) via scan code scan8: cmpb #0x54,d1 | shift + function key? bcss scan9 | no -> cmpb #0x5d,d1 bhis scan9 | no -> #ifdef __mcoldfire__ subl #0x54-0x3b,d1 | yes: scan code for unshifted key #else subb #0x54-0x3b,d1 | yes: scan code for unshifted key #endif movew d2,d3 | shift flags #ifdef __mcoldfire__ andl #NKFf_SHIFT,d3 | any shift key flag set? #else andw #NKFf_SHIFT,d3 | any shift key flag set? #endif bnes scan9 | yes -> #ifdef __mcoldfire__ orl #NKFf_SHIFT,d2 | no: set both flags #else orw #NKFf_SHIFT,d2 | no: set both flags #endif scan9: cmpb #0x3b,d1 | (unshifted) function key? bcss cat_codes | no -> cmpb #0x44,d1 bhis cat_codes | no -> moveb d1,d0 | yes: calc NKC #ifdef __mcoldfire__ subl #0x2b,d0 #else subb #0x2b,d0 #endif |------------- final flag handling| mix key code (low byte) and flag byte cat_codes: movel pkey_shift,a0 | ^shifted table #ifdef __mcoldfire__ moveb a0@(d1:l),d3 | get shifted ASCII code orl d2,d0 | mix flags with key code tst.w d0 #else moveb a0@(d1:w),d3 | get shifted ASCII code orw d2,d0 | mix flags with key code #endif bmis scan10 | result is "function key"? -> #ifdef __mcoldfire__ andl #NKFf_CTRL+NKFf_ALT,d2 | Control or Alternate pressed? #else andw #NKFf_CTRL+NKFf_ALT,d2 | Control or Alternate pressed? #endif bnes scan11 | yes -> scan10: movel pkey_unshift,a0 | ^unshifted table #ifdef __mcoldfire__ cmpb a0@(d1:l),d3 | shifted ASCII = unshifted ASCII? #else cmpb a0@(d1:w),d3 | shifted ASCII = unshifted ASCII? #endif beqs scan12 | yes -> bras exit2 | no -> scan11: #ifdef __mcoldfire__ orl #NKFf_FUNC,d0 | Alt/Ctrl + char: set function bit #else orw #NKFf_FUNC,d0 | Alt/Ctrl + char: set function bit #endif movel pkey_caps,a0 | ^CapsLock table #ifdef __mcoldfire__ cmpb a0@(d1:l),d3 | shifted ASCII = CapsLocked ASCII? #else cmpb a0@(d1:w),d3 | shifted ASCII = CapsLocked ASCII? #endif bnes exit2 | no -> moveb d3,d0 | yes: use shifted ASCII code scan12: #ifdef __mcoldfire__ orl #NKFf_RESVD,d0 | yes: nkc_cmp() has to check #else orw #NKFf_RESVD,d0 | yes: nkc_cmp() has to check #endif |------------- restore registers and exit exit2: tstw d0 | set CCR #ifdef __mcoldfire__ movem.l sp@,d2-d4 | restore registers lea sp@(12),sp #else movem.l sp@+,d2-d4 | restore registers #endif rts | bye |------------- special handling for key codes created by TOS' 3.06 ASCII input tos306: #ifdef __mcoldfire__ andl #NKFf_CAPS,d2 | isolate CapsLock flag orl d2,d0 | merge with ASCII code movem.l sp@,d2-d4 | restore registers lea sp@(12),sp #else andw #NKFf_CAPS,d2 | isolate CapsLock flag orw d2,d0 | merge with ASCII code movem.l sp@+,d2-d4 | restore registers #endif rts | bye |*************************************************************************** | | nkc_n2tos: convert normalized key codes back to TOS format | |*************************************************************************** _nkc_n2tos: movel sp@(4),d0 | Parameter ber Stack! movew d0,d1 | normalized key code | and #NKFf_FUNC|NKFf_ALT|NKFf_CTRL,d1| isolate flags #ifdef __mcoldfire__ andl #0x8c00,d1 | isolate flags #else andw #0x8c00,d1 | isolate flags #endif cmpw #NKFf_FUNC,d1 | only function flag set? bnes ktab20 | no -> cmpb #0x20,d0 | ASCII code >= 0x20? bcss ktab20 | no -> |------------- macro key movew d0,d1 | keep normalized key code | andl #NKFf_CAPS|NKFf_SHIFT,d0 | isolate usable flags andl #0x1300,d0 | mask off both flags btst #NKFb_NUM,d1 | numeric keypad flag set? beqs mackey | no -> | or #NKFf_ALT|NKFf_CTRL,d0 | yes: set Alternate + Control #ifdef __mcoldfire__ orl #0xc00,d1 | yes: set Alternate + Control? #else orw #0xc00,d1 | yes: set Alternate + Control? #endif mackey: #ifdef __mcoldfire__ orl #0xff,d0 | scan code always 0xff #else orb #0xff,d0 | scan code always 0xff #endif swap d0 | flags and scan code in upper word moveb d1,d0 | ASCII code bra exit3 | -> |------------- select system key table to use ktab20: movew d0,d1 | normalized key code #ifdef __mcoldfire__ andl #NKFf_SHIFT,d1 | isolate bits for shift keys #else andw #NKFf_SHIFT,d1 | isolate bits for shift keys #endif beqs ktab21 | shift key pressed? no-> lea n_to_scan_s,a1 | ^default translation table movel pkey_shift,a0 | yes: use shift table bras ktab23 | -> ktab21: lea n_to_scan_u,a1 | ^unshifted translation table btst #NKFb_CAPS,d0 | CapsLock? beqs ktab22 | no-> movel pkey_caps,a0 | yes: use CapsLock table bras ktab23 | -> ktab22: movel pkey_unshift,a0 | use unshifted table |------------- handling for ASCII codes >= 32 ktab23: cmpb #32,d0 | ASCII code < 32? bcss lowascii | yes -> bsr nk_findscan | find scan code bnes found2 | found -> btst #NKFb_FUNC,d0 | function flag set? beqs notfound | no -> movel a0,d1 | save a0 lea tolower,a0 | ^upper->lower case table moveql #0,d2 | clear for word operation moveb d0,d2 | ASCII code #ifdef __mcoldfire__ moveb a0@(d2:l),d0 | get lowercased ASCII code #else moveb a0@(d2:w),d0 | get lowercased ASCII code #endif movel d1,a0 | restore a0 bsr nk_findscan | try to find scan code again bnes found2 | found -> |------------- unknown source: treat key code as it was entered using the | TOS 3.06 direct ASCII input notfound: moveql #0,d1 | not found: clear for word op. moveb d0,d1 | unchanged ASCII code #ifdef __mcoldfire__ andl #0x1f00,d0 | keep shift flags only #else andw #0x1f00,d0 | keep shift flags only #endif swap d0 | -> high word (scan code = 0) movew d1,d0 | low word: ASCII code bra exit3 | -> |------------- handling for ASCII codes < 32 lowascii: btst #NKFb_FUNC,d0 | function key? bnes func | yes -> #ifdef __mcoldfire__ andl #0xffff10ff,d0 | clear all flags except CapsLock #else andw #0x10ff,d0 | clear all flags except CapsLock #endif bras notfound | -> func: moveql #0,d1 | clear for word operation moveb d0,d1 | ASCII code (0...0x1f) movew d1,d2 | copy #ifdef __mcoldfire__ moveb a1@(d1:l),d1 | get scan code #else moveb a1@(d1:w),d1 | get scan code #endif bnes getascii | valid? -> moveq #0,d0 | invalid key code!! return 0 bra exit3 | -> getascii: lea n_to_scan_u,a1 | ^unshifted translation table #ifdef __mcoldfire__ moveb a1@(d2:l),d2 | get scan code from unshifted tab. moveb a0@(d2:l),d0 | get ASCII from system's table #else moveb a1@(d2:w),d2 | get scan code from unshifted tab. moveb a0@(d2:w),d0 | get ASCII from system's table #endif | register contents: | | d0.b ASCII code | d1.b scan code | d0.hb NKCC flags | found2: movew d0,d2 | flags and ASCII code #ifdef __mcoldfire__ andl #0x1f00,d0 | isolate shift flags #else andw #0x1f00,d0 | isolate shift flags #endif moveb d1,d0 | merge with scan code swap d0 | -> high byte clrw d0 | erase low word moveb d2,d0 | restore ASCII code |------------- handling for Control key flag btst #NKFb_CTRL,d2 | control key flag set? beqs alternate | no -> cmpb #0x4b,d1 | scan code = "cursor left"? bnes scanchk2 | no -> addl #0x280000,d0 | change scan code to 0x73 clrb d0 | erase ASCII code bras exit3 | -> scanchk2: cmpb #0x4d,d1 | scan code = "cursor right"? bnes scanchk3 | no -> addl #0x270000,d0 | change scan code to 0x74 clrb d0 | erase ASCII code bras exit3 | -> scanchk3: cmpb #0x47,d1 | scan code = "ClrHome"? bnes ascchk | no -> addl #0x300000,d0 | change scan code to 0x77 | keep ASCII code in this case! What a mess... bras exit3 | -> ascchk: lea asc_trans,a0 | ^ASCII translation table ascloop: movew a0@+,d1 | get next entry beqs noctrlasc | end of table -> cmpb d0,d1 | ASCII code found? bnes ascloop | no -> continue search #ifdef __mcoldfire__ lsrl #8,d1 | yes: get translated code #else lsrw #8,d1 | yes: get translated code #endif moveb d1,d0 | use it bras exit3 | -> noctrlasc: #ifdef __mcoldfire__ andl #0x1f,d0 | mask off upper 3 bits #else andb #0x1f,d0 | mask off upper 3 bits #endif bras exit3 | -> |------------- handling for Alternate key flag alternate: btst #NKFb_ALT,d2 | alternate key flag set? beqs exit3 | no -> cmpb #2,d1 | top row on main keyboard? bcss alphachk | no -> cmpb #0xd,d1 bhis alphachk | no -> addl #0x760000,d0 | yes: change scan code clrb d0 | and erase ASCII code bras exit3 | -> alphachk: cmpb #65,d0 | alpha-characters? bcss exit3 | no -> cmpb #122,d0 bhis exit3 | no -> cmpb #90,d0 blss ascii0 | yes -> cmpb #97,d0 bcss exit3 | no -> ascii0: clrb d0 | alpha-character: clear ASCII code exit3: tstw d0 | set CCR rts | bye |*************************************************************************** | | nkc_toupper: convert character to upper case | |*************************************************************************** _nkc_toupper: movel sp@(4),d1 | Parameter via Stack! lea toupper,a0 | ^upper case translation table #ifdef __mcoldfire__ andl #0xff,d1 | high byte = 0 for word operation #else andw #0xff,d1 | high byte = 0 for word operation #endif moveb a0@(d1:l),d0 | convert rts | bye |*************************************************************************** | | nkc_tolower: convert character to lower case | |*************************************************************************** _nkc_tolower: movel sp@(4),d1 | Parameter via Stack! lea tolower,a0 | ^lower case translation table #ifdef __mcoldfire__ andl #0xff,d1 | high byte = 0 for word operation #else andw #0xff,d1 | high byte = 0 for word operation #endif moveb a0@(d1:l),d0 | convert rts | bye |*************************************************************************** | LOCAL DATA SECTION |*************************************************************************** .data | exception scan code table for cursor block keys | | first entry.B: NKCC key code | second entry.B: scan code returned by TOS | | the table is terminated with both entries -1 xscantab: .byte NK_UP , 0x48 | cursor up .byte NK_DOWN , 0x50 | cursor down .byte NK_LEFT , 0x4b | cursor left .byte NK_LEFT , 0x73 | Control cursor left .byte NK_RIGHT , 0x4d | cursor right .byte NK_RIGHT , 0x74 | Control cursor right .byte NK_M_PGUP , 0x49 | Mac: page up .byte NK_M_PGDOWN , 0x51 | Mac: page down .byte NK_M_END , 0x4f | Mac: end .byte NK_INS , 0x52 | Insert .byte NK_CLRHOME , 0x47 | ClrHome .byte NK_CLRHOME , 0x77 | Control ClrHome .byte NK_HELP , 0x62 | Help .byte NK_UNDO , 0x61 | Undo .byte NK_M_F11 , 0x45 | Mac: F11 .byte NK_M_F12 , 0x46 | Mac: F12 .byte NK_M_F14 , 0x37 | Mac: F14 .word -1 | lower case to upper case conversion table | (array of 256 unsigned bytes) toupper: .byte 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07 .byte 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f .byte 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17 .byte 0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f .byte 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27 .byte 0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F .byte 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37 .byte 0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F .byte 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47 .byte 0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F .byte 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57 .byte 0x58,0x59,0x5A,0x5B,0x5c,0x5D,0x5E,0x5F .byte 0x60,0x41,0x42,0x43,0x44,0x45,0x46,0x47 .byte 0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F .byte 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57 .byte 0x58,0x59,0x5A,0x7B,0x7C,0x7D,0x7E,0x7F .byte 0x80,0x9A,0x90,0x83,0x8E,0xB6,0x8F,0x80 .byte 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F .byte 0x90,0x92,0x92,0x93,0x99,0x95,0x96,0x97 .byte 0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F .byte 0xA0,0xA1,0xA2,0xA3,0xA5,0xA5,0xA6,0xA7 .byte 0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF .byte 0xB7,0xB8,0xB2,0xB2,0xB5,0xB5,0xB6,0xB7 .byte 0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF .byte 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7 .byte 0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF .byte 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7 .byte 0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF .byte 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7 .byte 0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF .byte 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7 .byte 0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF | upper case to lower case conversion table | (array of 256 unsigned bytes) tolower: .byte 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07 .byte 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f .byte 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17 .byte 0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f .byte 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27 .byte 0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F .byte 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37 .byte 0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F .byte 0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67 .byte 0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F .byte 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77 .byte 0x78,0x79,0x7A,0x5B,0x5C,0x5D,0x5E,0x5F .byte 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67 .byte 0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F .byte 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77 .byte 0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F .byte 0x87,0x81,0x82,0x83,0x84,0x85,0x86,0x87 .byte 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x84,0x86 .byte 0x82,0x91,0x91,0x93,0x94,0x95,0x96,0x97 .byte 0x98,0x94,0x81,0x9B,0x9C,0x9D,0x9E,0x9F .byte 0xA0,0xA1,0xA2,0xA3,0xA4,0xA4,0xA6,0xA7 .byte 0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF .byte 0xB0,0xB1,0xB3,0xB3,0xB4,0xB4,0x85,0xB0 .byte 0xB1,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF .byte 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7 .byte 0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF .byte 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7 .byte 0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF .byte 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7 .byte 0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF .byte 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7 .byte 0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF | ASCII code translation table for Control key | | first entry.B: modified ASCII code returned by TOS | second entry.B: original ASCII code as stored in key table | | The table is terminated with both entries 0 asc_trans: .byte 0,0x32 | Control '2' becomes ASCII 0 .byte 0x1e,0x36 | Control '6' becomes ASCII 0x1e .byte 0x1f,0x2d | Control '-' becomes ASCII 0x1f .byte 0xa,0xd | Control Return/Enter: 0xd -> 0xa .word 0 | terminator | normalized key code -> scan code translation table | for unshifted key codes | indexed by function code (NK_...) n_to_scan_u: .byte 0x00 | invalid key code .byte 0x48 | cursor up .byte 0x50 | cursor down .byte 0x4d | cursor right .byte 0x4b | cursor left .byte 0x49 | Mac: page up .byte 0x51 | Mac: page down .byte 0x4f | Mac: end .byte 0x0e | Backspace .byte 0x0f | Tab .byte 0x72 | Enter .byte 0x52 | Insert .byte 0x47 | ClrHome .byte 0x1c | Return .byte 0x62 | Help .byte 0x61 | Undo .byte 0x3b | function key #1 .byte 0x3c | function key #2 .byte 0x3d | function key #3 .byte 0x3e | function key #4 .byte 0x3f | function key #5 .byte 0x40 | function key #6 .byte 0x41 | function key #7 .byte 0x42 | function key #8 .byte 0x43 | function key #9 .byte 0x44 | function key #10 .byte 0x45 | Mac: F11 .byte 0x01 | Esc .byte 0x46 | Mac: F12 .byte 0x37 | Mac: F14 .byte 0x00 | reserved! .byte 0x53 | Delete | normalized key code -> scan code translation table | for shifted key codes | indexed by function code (NK_...) n_to_scan_s: .byte 0x00 | invalid key code .byte 0x48 | cursor up .byte 0x50 | cursor down .byte 0x4d | cursor right .byte 0x4b | cursor left .byte 0x49 | Mac: page up .byte 0x51 | Mac: page down .byte 0x4f | Mac: end .byte 0x0e | Backspace .byte 0x0f | Tab .byte 0x72 | Enter .byte 0x52 | Insert .byte 0x47 | ClrHome .byte 0x1c | Return .byte 0x62 | Help .byte 0x61 | Undo .byte 0x54 | function key #1 .byte 0x55 | function key #2 .byte 0x56 | function key #3 .byte 0x57 | function key #4 .byte 0x58 | function key #5 .byte 0x59 | function key #6 .byte 0x5a | function key #7 .byte 0x5b | function key #8 .byte 0x5c | function key #9 .byte 0x5d | function key #10 .byte 0x45 | Mac: F11 .byte 0x01 | Esc .byte 0x46 | Mac: F12 .byte 0x37 | Mac: F14 .byte 0x00 | reserved! .byte 0x53 | Delete |*************************************************************************** | LOCAL BSS SECTION |*************************************************************************** | .bss pkey_unshift: .long 1 | ^unshifted key table pkey_shift: .long 1 | ^shifted key table pkey_caps: .long 1 | ^CapsLock table