mirrors/netsurf
1
0
Fork 0
mirror of https://github.com/netsurf-browser/netsurf synced 2024-12-20 03:02:36 +03:00
Code Issues Packages Projects Releases Wiki Activity
93941435b8
netsurf/atari/nkcc.s
Ole Loots 2f6520e8b4 Removed dependency to cflib, 
call EvntWindom only one time per sec. when active flag is set. 

svn path=/trunk/netsurf/; revision=12443
2011-05-24 21:44:20 +00:00

1068 lines
27 KiB
ArmAsm
Executable File
Raw Blame History

|*
|* $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 <20>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
Reference in New Issue View Git Blame Copy Permalink