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|
\ FORTH Assembler for R8C hfs 23:54 25.12.05
\
\ Copyright (C) 2006,2007 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth 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 3
\ of the License, or (at your option) any later version.
\ This program 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 this program. If not, see http://www.gnu.org/licenses/.
\
\ Author: Heinz Schnitter (hfs)
\
\ Information:
\
\ - R8C.ASM is a table driven assembler.
\ - R8C.ASM supports OPCodes of Renesas R8C Microcomputer in
\ postfix notation.
\ only forth definitions
require asm/basic.fs
also ASSEMBLER definitions
require asm/target.fs
\ for tests only hfs 07:47 04/24/92
\ : TC, base @ >r hex 0 <# # # #> type r> base ! ;
\ : T, base @ >r hex 0 <# # # # # #> type r> base ! ;
\ : ta, base @ >r hex 0 <# # # # # # #> type r> base ! ;
: ta, true abort" This stupid 20 bit addressing mode doesn't work!" ;
HERE ( Begin )
\ VARIABLEs and RESET hfs 10:03 04/23/92
VARIABLE SSP \ save of SP
VARIABLE <,> \ two addrs
VARIABLE <M> \ mode searched for in table
VARIABLE <OPC> \ OPCode
VARIABLE <.B>
VARIABLE <S-OPND>
VARIABLE <D-OPND>
: ssave SP@ SSP ! ;
: RESET ( clears all variables )
0 <M> C! $0FF <M> 1+ C!
0 <OPC> C! $0FF <OPC> 1+ C!
<S-OPND> OFF <D-OPND> OFF
<,> OFF <.B> OFF ssave ;
: opnd? ( -- N ) SSP @ SP@ - 1 cells - 1 cells / ;
: ,? <,> @ ;
: S-OPND? <S-OPND> @ ;
: D-OPND? <D-OPND> @ ;
: WITHIN >R OVER > SWAP R> <= 0= OR 0= ;
: 4B? ( n -- n f ) ( within -8 .. 7 ? )
DUP -$8 $7 WITHIN ;
: >4B? ( n -- n f ) 4B? 0= ;
: 8B? ( n -- n f ) ( within -128 .. 127 ? )
DUP -$80 $7F WITHIN ;
: >8B? ( n -- n f ) 8B? 0= ;
$0ff CONSTANT abs8
: abs8? ( n -- n f ) DUP abs8 u< ;
: >abs8? ( n -- n f ) abs8? 0= ;
: >opc <M> 1+ C@ <OPC> 1+ C! ;
: M: CREATE C, C,
DOES> ,?
IF dup C@ <M> c@ $F0 AND OR <M> c!
1+ C@ <M> 1+ c@ $F0 AND OR <M> 1+ c!
ELSE dup C@ 4 lshift <M> c@ $0F AND OR <M> c!
1+ C@ 4 lshift <M> 1+ c@ $0F AND OR <M> 1+ c!
THEN ;
\ address-modes hfs
%0000 0 M: R0 ' R0 alias R0L ' R0 alias R2R0 ' R0 alias C
%0001 0 M: R1 ' R1 alias R0H ' R1 alias R3R1 ' R1 alias D
%0010 0 M: R2 ' R2 alias R1L ' R2 alias Z
%0011 0 M: R3 ' R3 alias R1H ' R3 alias S
%0100 0 M: A0 ' A0 alias A1A0 ' A0 alias B
%0101 0 M: A1 ' A1 alias O
%0110 0 M: [A0] ' [A0] alias I
%0111 0 M: [A1] ' [A1] alias U
%1010 0 M: [SB]
%1011 0 M: [FB]
%1111 0 M: abs:16
%0000 1 M: #
%0001 1 M: INTBL
%0010 1 M: INTBH
%0011 1 M: FLG
%0100 1 M: ISP
%0101 1 M: SP
%0110 1 M: SB
%0111 1 M: FB
\ %0000 2 M: [SP]
\ two cells are used for each address mode in the table:
\
\ cell 1 contains the src and dst MODE# searched for.
\
\ Cell 2 contains the xt of the action word for this address mode.
\
\ | #src#dst|src dst| |
\ |.....76543210 76543210 .....7654321076543210|
\ | MODE | xt |
: TABLE: ( -- addr ) \ generate new table
CREATE HERE DUP 1 cells + , RESET ;
: ;TABLE ( addr -- ) \ change endpoint
HERE SWAP ! ;
: TAB, ( xt opcode -- )
<M> @ , , RESET ;
: SEARCH.MODE.2 ( addr -- xt )
TRUE SWAP
DUP C@ <OPC> C! ( opc from GROUP2: )
DUP 1+ C@ <OPC> 1+ C! ( opc from GROUP2: )
2 + @ DUP @ ( tableaddr )
SWAP 1 cells + ( end+2 begin )
?DO [ forth ] I [ assembler ] @ <M> @ =
IF [ forth ] I [ assembler ] 1 cells + @ swap 0= LEAVE THEN
2 cells +LOOP ABORT" Addressmode failed" ;
: SEARCH.MODE.4 ( addr -- xt )
TRUE SWAP
DUP C@ <OPC> C! ( opc from GROUP4: )
DUP 1+ C@ <OPC> 1+ C! ( opc from GROUP4: )
DUP 2 + C@ <OPC> 2 + C! ( opc from GROUP4: )
DUP 3 + C@ <OPC> 3 + C! ( opc from GROUP4: )
4 + @ DUP @ ( tableaddr )
SWAP 1 cells + ( end+2 begin )
?DO [ forth ] I [ assembler ] @ <M> @ =
IF [ forth ] I [ assembler ] 1 cells + @ swap 0= LEAVE THEN
2 cells +LOOP ABORT" Addressmode failed" ;
\ GROUPS hfs 07:18 04/24/92
: GROUP2: CREATE C, C, , ( xt opc opc -- )
DOES> SEARCH.MODE.2 EXECUTE RESET ;
: GROUP4: CREATE C, C, C, C, , ( xt opc opc opc opc -- )
DOES> SEARCH.MODE.4 EXECUTE RESET ;
\ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: , opnd? <s-opnd> ! ssave <,> ON ;
\ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: OPC, <OPC> C@ X C, <OPC> 1+ C@ X C, ;
: [An], <M> 1+ C@ $F0 AND
CASE
%01100000 of s-opnd? \ [A0]
IF abs8? IF %10000000 ELSE %11000000 THEN
<M> 1+ C@ $0F AND OR <M> 1+ C! THEN
endof
%01110000 of s-opnd? \ [A1]
IF abs8? IF %10010000 ELSE %11010000 THEN
<M> 1+ C@ $0F AND OR <M> 1+ C! THEN
endof
ENDCASE ;
: ,[An] <M> 1+ C@ $0F AND
CASE
%0110 of d-opnd? \ [A0]
IF abs8? IF %1000 ELSE %1100 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
%0111 of d-opnd? \ [A1]
IF abs8? IF %1001 ELSE %1101 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
ENDCASE ;
: [SB], s-opnd?
IF >abs8? IF %11100000 <M> 1+ C@ $0F AND OR <M> 1+ C! THEN
ELSE true abort" displacement expected" THEN ;
: ,[SB] d-opnd?
IF >abs8? IF %1110 <M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
ELSE true abort" displacement expected" THEN ;
: [FB], s-opnd? 0= ABORT" displacement expected" ;
: ,[FB] d-opnd? 0= ABORT" displacement expected" ;
: abs:16, s-opnd? 0= ABORT" absolute Adr expected" ;
: ,abs:16 d-opnd? 0= ABORT" absolute Adr expected" ;
: #, s-opnd? 0= ABORT" operand expected"
<OPC> 2 + c@ %00000001 and 0= IF <.b> on THEN
<OPC> 2 + c@ <OPC> c!
<OPC> 3 + c@ <M> 1+ c@ $0F and or <M> 1+ c! ;
: q#, s-opnd? 0= ABORT" operand expected"
s-opnd? d-opnd? and IF swap THEN
>4B? ABORT" immediate > 4 Bit"
4 lshift <M> 1+ c@ $0F and or <M> 1+ c! ;
: ctrl, <M> 1+ C@ %10000000 OR <M> 1+ C! ;
: ,ctrl <M> 1+ C@ $0F and 4 lshift
<M> 1+ C@ $F0 and 4 rshift OR %10000000 or <M> 1+ C! ;
\ ----------------------------------------------------------------------------------------------
\ ----------------------------------------------------------------------------------------------
: GROUP.1B: CREATE C, ( opc -- )
DOES> c@ X C,
RESET ;
%00000100 GROUP.1B: nop
%11111011 GROUP.1B: reit
%11110011 GROUP.1B: rts
\ ----------------------------------------------------------------------------------------------
: GROUP.1B.l8: CREATE C, ( opc -- )
DOES> c@ X C,
opnd? 0= ABORT" label expected"
>8B? ABORT" label > 8 Bit" X C,
RESET ;
%01101000 GROUP.1B.l8: JGEU ' JGEU alias JC
%01101001 GROUP.1B.l8: JGTU
%01101010 GROUP.1B.l8: JEQ ' JEQ alias JZ
%01101011 GROUP.1B.l8: JN
%01101100 GROUP.1B.l8: JLTU ' JLTU alias JNC
%01101101 GROUP.1B.l8: JLEU
%01101110 GROUP.1B.l8: JNE ' JNE alias JNZ
%01101111 GROUP.1B.l8: JPZ
%11111110 GROUP.1B.l8: JMP.B
\ ----------------------------------------------------------------------------------------------
: GROUP.1B.l16: CREATE C, ( opc -- )
DOES> c@ X C,
opnd? 0= ABORT" label expected"
X ,
RESET ;
%11110100 GROUP.1B.l16: JMP.W
\ ----------------------------------------------------------------------------------------------
: GROUP.2B: CREATE C, C, ( opc opc -- )
DOES> dup c@ X C, 1+ c@ X C,
RESET ;
%11101001 %01111100 GROUP.2B: smovb.b
%11101000 %01111100 GROUP.2B: smovf.b
%11101010 %01111100 GROUP.2B: sstr.b
%11101001 %01111101 GROUP.2B: smovb.w
%11101000 %01111101 GROUP.2B: smovf.w
%11101010 %01111101 GROUP.2B: sstr.w
\ ----------------------------------------------------------------------------------------------
: GROUP.2B.l8: CREATE C, C, ( opc opc -- )
DOES> dup c@ X C, 1+ c@ X C,
opnd? 0= ABORT" label expected"
>8B? ABORT" label > 8 Bit" X C,
RESET ;
%11001000 %01111101 GROUP.2B.l8: JLE
%11001001 %01111101 GROUP.2B.l8: JO
%11001010 %01111101 GROUP.2B.l8: JGE
%11001100 %01111101 GROUP.2B.l8: JGT
%11001101 %01111101 GROUP.2B.l8: JNO
%11001110 %01111101 GROUP.2B.l8: JLT
\ ----------------------------------------------------------------------------------------------
: GROUP.2B.F: CREATE C, C, ( opc opc -- )
DOES> dup c@ X C, 1+ c@ <M> 1+ C@ $70 and or X C,
RESET ;
%00000101 %11101011 GROUP.2B.F: FCLR
%00000100 %11101011 GROUP.2B.F: FSET
\ ----------------------------------------------------------------------------------------------
: ctrl,R opnd? <d-opnd> !
ctrl,
>opc OPC, ;
: ctrl,[An] opnd? <d-opnd> !
ctrl, ,[An]
>opc OPC,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: ctrl,[SB] opnd? <d-opnd> !
ctrl, ,[SB]
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: ctrl,[FB] opnd? <d-opnd> !
ctrl, ,[FB]
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: ctrl,abs:16 opnd? <d-opnd> !
ctrl, ,abs:16
>opc OPC,
X , ;
Table: st-control-reg
INTBL , R0 ' ctrl,R TAB, INTBL , R1 ' ctrl,R TAB,
INTBL , R2 ' ctrl,R TAB, INTBL , R3 ' ctrl,R TAB,
INTBL , A0 ' ctrl,R TAB, INTBL , A1 ' ctrl,R TAB,
INTBL , [A0] ' ctrl,[An] TAB, INTBL , [A1] ' ctrl,[An] TAB,
INTBL , [SB] ' ctrl,[SB] TAB, INTBL , [FB] ' ctrl,[FB] TAB,
INTBL , abs:16 ' ctrl,abs:16 TAB,
INTBH , R0 ' ctrl,R TAB, INTBH , R1 ' ctrl,R TAB,
INTBH , R2 ' ctrl,R TAB, INTBH , R3 ' ctrl,R TAB,
INTBH , A0 ' ctrl,R TAB, INTBH , A1 ' ctrl,R TAB,
INTBH , [A0] ' ctrl,[An] TAB, INTBH , [A1] ' ctrl,[An] TAB,
INTBH , [SB] ' ctrl,[SB] TAB, INTBH , [FB] ' ctrl,[FB] TAB,
INTBL , abs:16 ' ctrl,abs:16 TAB,
FLG , R0 ' ctrl,R TAB, FLG , R1 ' ctrl,R TAB,
FLG , R2 ' ctrl,R TAB, FLG , R3 ' ctrl,R TAB,
FLG , A0 ' ctrl,R TAB, FLG , A1 ' ctrl,R TAB,
FLG , [A0] ' ctrl,[An] TAB, FLG , [A1] ' ctrl,[An] TAB,
FLG , [SB] ' ctrl,[SB] TAB, FLG , [FB] ' ctrl,[FB] TAB,
FLG , abs:16 ' ctrl,abs:16 TAB,
ISP , R0 ' ctrl,R TAB, ISP , R1 ' ctrl,R TAB,
ISP , R2 ' ctrl,R TAB, ISP , R3 ' ctrl,R TAB,
ISP , A0 ' ctrl,R TAB, ISP , A1 ' ctrl,R TAB,
ISP , [A0] ' ctrl,[An] TAB, ISP , [A1] ' ctrl,[An] TAB,
ISP , [SB] ' ctrl,[SB] TAB, ISP , [FB] ' ctrl,[FB] TAB,
ISP , abs:16 ' ctrl,abs:16 TAB,
SP , R0 ' ctrl,R TAB, SP , R1 ' ctrl,R TAB,
SP , R2 ' ctrl,R TAB, SP , R3 ' ctrl,R TAB,
SP , A0 ' ctrl,R TAB, SP , A1 ' ctrl,R TAB,
SP , [A0] ' ctrl,[An] TAB, SP , [A1] ' ctrl,[An] TAB,
SP , [SB] ' ctrl,[SB] TAB, SP , [FB] ' ctrl,[FB] TAB,
SP , abs:16 ' ctrl,abs:16 TAB,
SB , R0 ' ctrl,R TAB, SB , R1 ' ctrl,R TAB,
SB , R2 ' ctrl,R TAB, SB , R3 ' ctrl,R TAB,
SB , A0 ' ctrl,R TAB, SB , A1 ' ctrl,R TAB,
SB , [A0] ' ctrl,[An] TAB, SB , [A1] ' ctrl,[An] TAB,
SB , [SB] ' ctrl,[SB] TAB, SB , [FB] ' ctrl,[FB] TAB,
SB , abs:16 ' ctrl,abs:16 TAB,
FB , R0 ' ctrl,R TAB, FB , R1 ' ctrl,R TAB,
FB , R2 ' ctrl,R TAB, FB , R3 ' ctrl,R TAB,
FB , A0 ' ctrl,R TAB, FB , A1 ' ctrl,R TAB,
FB , [A0] ' ctrl,[An] TAB, FB , [A1] ' ctrl,[An] TAB,
FB , [SB] ' ctrl,[SB] TAB, FB , [FB] ' ctrl,[FB] TAB,
FB , abs:16 ' ctrl,abs:16 TAB,
;TABLE
st-control-reg %11111111 %01111011 GROUP2: stc
\ ----------------------------------------------------------------------------------------------
: R,ctrl ,ctrl
>opc OPC, ;
: [An],ctrl opnd? <d-opnd> !
[An], ,ctrl
>opc OPC,
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: [SB],ctrl opnd? <d-opnd> !
[SB], ,ctrl
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: [FB],ctrl opnd? <d-opnd> !
[FB], ,ctrl
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: #,ctrl #, ,ctrl
<M> 1+ C@ %01110000 and <M> 1+ C!
>opc OPC,
X , ;
Table: ld-control-reg
R0 , INTBL ' R,ctrl TAB, R0 , INTBH ' R,ctrl TAB,
R0 , FLG ' R,ctrl TAB, R0 , ISP ' R,ctrl TAB,
R0 , SP ' R,ctrl TAB, R0 , SB ' R,ctrl TAB,
R0 , FB ' R,ctrl TAB,
R1 , INTBL ' R,ctrl TAB, R1 , INTBH ' R,ctrl TAB,
R1 , FLG ' R,ctrl TAB, R1 , ISP ' R,ctrl TAB,
R1 , SP ' R,ctrl TAB, R1 , SB ' R,ctrl TAB,
R1 , FB ' R,ctrl TAB,
R2 , INTBL ' R,ctrl TAB, R2 , INTBH ' R,ctrl TAB,
R2 , FLG ' R,ctrl TAB, R2 , ISP ' R,ctrl TAB,
R2 , SP ' R,ctrl TAB, R2 , SB ' R,ctrl TAB,
R2 , FB ' R,ctrl TAB,
R3 , INTBL ' R,ctrl TAB, R3 , INTBH ' R,ctrl TAB,
R3 , FLG ' R,ctrl TAB, R3 , ISP ' R,ctrl TAB,
R3 , SP ' R,ctrl TAB, R3 , SB ' R,ctrl TAB,
R3 , FB ' R,ctrl TAB,
A0 , INTBL ' R,ctrl TAB, A0 , INTBH ' R,ctrl TAB,
A0 , FLG ' R,ctrl TAB, A0 , ISP ' R,ctrl TAB,
A0 , SP ' R,ctrl TAB, A0 , SB ' R,ctrl TAB,
A0 , FB ' R,ctrl TAB,
A1 , INTBL ' R,ctrl TAB, A1 , INTBH ' R,ctrl TAB,
A1 , FLG ' R,ctrl TAB, A1 , ISP ' R,ctrl TAB,
A1 , SP ' R,ctrl TAB, A1 , SB ' R,ctrl TAB,
A1 , FB ' R,ctrl TAB,
[A0] , INTBL ' [An],ctrl TAB, [A0] , INTBH ' [An],ctrl TAB,
[A0] , FLG ' [An],ctrl TAB, [A0] , ISP ' [An],ctrl TAB,
[A0] , SP ' [An],ctrl TAB, [A0] , SB ' [An],ctrl TAB,
[A0] , FB ' [An],ctrl TAB,
[A1] , INTBL ' [An],ctrl TAB, [A1] , INTBH ' [An],ctrl TAB,
[A1] , FLG ' [An],ctrl TAB, [A1] , ISP ' [An],ctrl TAB,
[A1] , SP ' [An],ctrl TAB, [A1] , SB ' [An],ctrl TAB,
[A1] , FB ' [An],ctrl TAB,
[SB] , INTBL ' [SB],ctrl TAB, [SB] , INTBH ' [SB],ctrl TAB,
[SB] , FLG ' [SB],ctrl TAB, [SB] , ISP ' [SB],ctrl TAB,
[SB] , SP ' [SB],ctrl TAB, [SB] , SB ' [SB],ctrl TAB,
[SB] , FB ' [FB],ctrl TAB,
[FB] , INTBL ' [FB],ctrl TAB, [FB] , INTBH ' [FB],ctrl TAB,
[FB] , FLG ' [FB],ctrl TAB, [FB] , ISP ' [FB],ctrl TAB,
[FB] , SP ' [FB],ctrl TAB, [FB] , SB ' [FB],ctrl TAB,
[FB] , FB ' [FB],ctrl TAB,
# , INTBL ' #,ctrl TAB, # , INTBH ' #,ctrl TAB,
# , FLG ' #,ctrl TAB, # , ISP ' #,ctrl TAB,
# , SP ' #,ctrl TAB, # , SB ' #,ctrl TAB,
# , FB ' #,ctrl TAB,
;TABLE
ld-control-reg %00000000 %11101011 %11111111 %01111010 GROUP4: ldc
\ ----------------------------------------------------------------------------------------------
: (R) <OPC> 1+ c@ <M> 1+ c@ 4 rshift or <M> 1+ c!
>opc OPC, ;
: ([An]) <OPC> 1+ c@ <M> 1+ c@ 4 rshift or <M> 1+ c!
<M> 1+ C@ $0F AND
CASE
%0110 of opnd? \ [A0]
IF abs8? IF %1000 ELSE %1100 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
%0111 of opnd? \ [A1]
IF abs8? IF %1001 ELSE %1101 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
ENDCASE
>opc OPC,
<opc> c@ %01111101 = <opc> 1+ c@ %00101100 = and \ $12345 [ao] jmpi.w
<opc> c@ %01111101 = <opc> 1+ c@ %00101101 = and \ $12345 [a1] jmpi.w
or
IF opnd? IF 8B? IF X C, ELSE ta, THEN THEN
ELSE opnd? IF 8B? IF X C, ELSE X , THEN THEN THEN ;
: ([SB]) <OPC> 1+ c@ <M> 1+ c@ 4 rshift or <M> 1+ c!
opnd? <d-opnd> !
,[SB]
>opc OPC,
8B? IF X C, ELSE X , THEN ;
: ([FB]) <OPC> 1+ c@ <M> 1+ c@ 4 rshift or <M> 1+ c!
opnd? <d-opnd> !
,[FB]
>opc OPC,
X C, ;
: (abs:16) <OPC> 1+ c@ <M> 1+ c@ 4 rshift or <M> 1+ c!
opnd? <d-opnd> !
,abs:16
>opc OPC,
X , ;
: (#) opnd? 0= ABORT" operand expected"
<OPC> 1+ c@ %01000000 =
IF <OPC> c@
CASE
%01110100 OF %01111100 <OPC> c! ENDOF
%01110101 OF %01111101 <OPC> c! ENDOF
ENDCASE
ELSE
true abort" push.?:g only"
THEN %11100010 <M> 1+ c!
>opc OPC,
8B? IF X C, ELSE X , THEN ;
Table: 2ByteOPC(dsp8/dsp16) \ 2ByteOPC(dsp8/dsp16)
R0 ' (R) TAB, R1 ' (R) TAB,
R2 ' (R) TAB, R3 ' (R) TAB,
A0 ' (R) TAB, A1 ' (R) TAB,
[A0] ' ([An]) TAB, [A1] ' ([An]) TAB,
[SB] ' ([SB]) TAB, [FB] ' ([FB]) TAB,
abs:16 ' (abs:16) TAB, # ' (#) TAB,
;TABLE
2ByteOPC(dsp8/dsp16) %11110000 %01110110 GROUP2: abs.b
2ByteOPC(dsp8/dsp16) %11100000 %01110110 GROUP2: adcf.b
2ByteOPC(dsp8/dsp16) %11010000 %01110110 GROUP2: div.b
2ByteOPC(dsp8/dsp16) %11000000 %01110110 GROUP2: divu.b
2ByteOPC(dsp8/dsp16) %10010000 %01110110 GROUP2: divx.b
2ByteOPC(dsp8/dsp16) %01010000 %01110100 GROUP2: neg.b
2ByteOPC(dsp8/dsp16) %01110000 %01110100 GROUP2: not.b:g
2ByteOPC(dsp8/dsp16) %11010000 %01110100 GROUP2: pop.b:g
2ByteOPC(dsp8/dsp16) %01000000 %01110100 GROUP2: push.b:g
2ByteOPC(dsp8/dsp16) %10100000 %01110110 GROUP2: rolc.b
2ByteOPC(dsp8/dsp16) %10110000 %01110110 GROUP2: rorc.b
2ByteOPC(dsp8/dsp16) %11110000 %01110111 GROUP2: abs.w
2ByteOPC(dsp8/dsp16) %11100000 %01110111 GROUP2: adcf.w
2ByteOPC(dsp8/dsp16) %11010000 %01110111 GROUP2: div.w
2ByteOPC(dsp8/dsp16) %11000000 %01110111 GROUP2: divu.w
2ByteOPC(dsp8/dsp16) %10010000 %01110111 GROUP2: divx.w
2ByteOPC(dsp8/dsp16) %01010000 %01110101 GROUP2: neg.w
2ByteOPC(dsp8/dsp16) %01110000 %01110101 GROUP2: not.w:g
2ByteOPC(dsp8/dsp16) %11010000 %01110101 GROUP2: pop.w:g
2ByteOPC(dsp8/dsp16) %01000000 %01110101 GROUP2: push.w:g
2ByteOPC(dsp8/dsp16) %10100000 %01110111 GROUP2: rolc.w
2ByteOPC(dsp8/dsp16) %10110000 %01110111 GROUP2: rorc.w
2ByteOPC(dsp8/dsp16) %00100000 %01111101 GROUP2: jmpi.w
2ByteOPC(dsp8/dsp16) %00000000 %01111101 GROUP2: jmpi.a
\ ----------------------------------------------------------------------------------------------
: q#,R opnd? <d-opnd> !
q#,
>opc OPC, ;
: q#,[an] opnd? <d-opnd> !
q#, ,[an]
>opc OPC,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: q#,[sb] opnd? <d-opnd> !
q#, ,[sb]
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: q#,[fb] opnd? <d-opnd> !
q#, ,[fb]
>opc OPC,
X C, ;
: q#,abs:16 opnd? <d-opnd> !
q#, ,abs:16
>opc OPC,
X , ;
Table: quick
# , R0 ' q#,R TAB, # , R1 ' q#,R TAB,
# , R2 ' q#,R TAB, # , R3 ' q#,R TAB,
# , A0 ' q#,R TAB, # , A1 ' q#,R TAB,
# , [A0] ' q#,[An] TAB, # , [A1] ' q#,[An] TAB,
# , [SB] ' q#,[SB] TAB, # , [FB] ' q#,[FB] TAB,
# , abs:16 ' q#,abs:16 TAB,
;TABLE
quick %00000000 %11001000 GROUP2: add.b:q
quick %00000000 %11010000 GROUP2: cmp.b:q
quick %00000000 %11011000 GROUP2: mov.b:q
quick %00000000 %11001001 GROUP2: add.w:q
quick %00000000 %11010001 GROUP2: cmp.w:q
quick %00000000 %11011001 GROUP2: mov.w:q
\ ----------------------------------------------------------------------------------------------
: R,R >opc OPC, ;
: R,[An] opnd? <d-opnd> !
,[An]
>opc OPC,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: R,[SB] opnd? <d-opnd> !
,[SB]
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: R,[FB] opnd? <d-opnd> !
,[FB]
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: R,abs:16 opnd? <d-opnd> !
,abs:16
>opc OPC,
X , ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
: [An],R opnd? <d-opnd> !
[An],
>opc OPC,
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: [An],[An] opnd? <d-opnd> !
[An], ,[An]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: [An],[SB] opnd? <d-opnd> !
[An], ,[SB]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN
abs8? IF X C, ELSE X , THEN ;
: [An],[FB] opnd? <d-opnd> !
[An], ,[FB]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN
>8B? ABORT" displacement > 8 Bit"
X C, ;
: [An],abs:16 opnd? <d-opnd> !
[An], ,abs:16
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
s-opnd?
IF abs8? IF X C, ELSE X , THEN THEN
X , ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
: [SB],R opnd? <d-opnd> !
[SB],
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: [SB],[An] opnd? <d-opnd> !
[SB], ,[An]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
abs8? IF X C, ELSE X , THEN
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: [SB],[SB] opnd? <d-opnd> !
[SB], ,[SB]
>opc OPC,
swap
abs8? IF X C, ELSE X , THEN
abs8? IF X C, ELSE X , THEN ;
: [SB],[FB] opnd? <d-opnd> !
[SB], ,[FB]
>opc OPC,
swap
abs8? IF X C, ELSE X , THEN
>8B? ABORT" displacement > 8 Bit"
X C, ;
: [SB],abs:16 opnd? <d-opnd> !
[SB], ,abs:16
>opc OPC,
swap
abs8? IF X C, ELSE X , THEN
X , ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
: [FB],R opnd? <d-opnd> !
[FB],
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: [FB],[An] opnd? <d-opnd> !
[FB], ,[An]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
>8B? ABORT" displacement > 8 Bit"
X C,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: [FB],[SB] opnd? <d-opnd> !
[FB], ,[SB]
>opc OPC,
swap
>8B? ABORT" displacement > 8 Bit"
X C,
abs8? IF X C, ELSE X , THEN ;
: [FB],[FB] opnd? <d-opnd> !
[FB], ,[FB]
>opc OPC,
swap
>8B? ABORT" displacement > 8 Bit"
X C,
d-opnd?
IF 8B? IF X C, ELSE X , THEN THEN ;
: [FB],abs:16 opnd? <d-opnd> !
[FB], ,abs:16
>opc OPC,
swap
>8B? ABORT" displacement > 8 Bit"
X C,
X , ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
: abs:16,R opnd? <d-opnd> !
abs:16,
>opc OPC,
X , ;
: abs:16,[An] opnd? <d-opnd> !
abs:16, ,[An]
>opc OPC,
s-opnd? d-opnd? and IF swap THEN
X ,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: abs:16,[SB] opnd? <d-opnd> !
abs:16, ,[SB]
>opc OPC,
swap
X ,
abs8? IF X C, ELSE X , THEN ;
: abs:16,[FB] opnd? <d-opnd> !
abs:16, ,[FB]
>opc OPC,
swap
X ,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: abs:16,abs:16 opnd? <d-opnd> !
abs:16, ,abs:16
>opc OPC,
swap
X ,
X , ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
: #,R opnd? <d-opnd> !
#,
>opc OPC,
<.b> @ IF X C, ELSE X , THEN ;
: #,[An] opnd? <d-opnd> !
#, ,[An]
>opc OPC,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN
<.b> @ IF X C, ELSE X , THEN ;
: #,[SB] opnd? <d-opnd> !
#, ,[SB]
>opc OPC,
abs8? IF X C, ELSE X , THEN
<.b> @ IF X C, ELSE X , THEN ;
: #,[FB] opnd? <d-opnd> !
#, ,[FB]
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C,
<.b> @ IF X C, ELSE X , THEN ;
: #,abs:16 opnd? <d-opnd> !
#, ,abs:16
>opc OPC,
X ,
<.b> @ IF X C, ELSE X , THEN ;
\ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Table: generic
R0 , R0 ' R,R TAB, R0 , R1 ' R,R TAB,
R0 , R2 ' R,R TAB, R0 , R3 ' R,R TAB,
R0 , A0 ' R,R TAB, R0 , A1 ' R,R TAB,
R0 , [A0] ' R,[An] TAB, R0 , [A1] ' R,[An] TAB,
R0 , [SB] ' R,[SB] TAB, R0 , [FB] ' R,[FB] TAB,
R0 , abs:16 ' R,abs:16 TAB,
R1 , R0 ' R,R TAB, R1 , R1 ' R,R TAB,
R1 , R2 ' R,R TAB, R1 , R3 ' R,R TAB,
R1 , A0 ' R,R TAB, R1 , A1 ' R,R TAB,
R1 , [A0] ' R,[An] TAB, R1 , [A1] ' R,[An] TAB,
R1 , [SB] ' R,[SB] TAB, R1 , [FB] ' R,[FB] TAB,
R1 , abs:16 ' R,abs:16 TAB,
R2 , R0 ' R,R TAB, R2 , R1 ' R,R TAB,
R2 , R2 ' R,R TAB, R2 , R3 ' R,R TAB,
R2 , A0 ' R,R TAB, R2 , A1 ' R,R TAB,
R2 , [A0] ' R,[An] TAB, R2 , [A1] ' R,[An] TAB,
R2 , [SB] ' R,[SB] TAB, R2 , [FB] ' R,[FB] TAB,
R2 , abs:16 ' R,abs:16 TAB,
R3 , R0 ' R,R TAB, R3 , R1 ' R,R TAB,
R3 , R2 ' R,R TAB, R3 , R3 ' R,R TAB,
R3 , A0 ' R,R TAB, R3 , A1 ' R,R TAB,
R3 , [A0] ' R,[An] TAB, R3 , [A1] ' R,[An] TAB,
R3 , [SB] ' R,[SB] TAB, R3 , [FB] ' R,[FB] TAB,
R3 , abs:16 ' R,abs:16 TAB,
A0 , R0 ' R,R TAB, A0 , R1 ' R,R TAB,
A0 , R2 ' R,R TAB, A0 , R3 ' R,R TAB,
A0 , A0 ' R,R TAB, A0 , A1 ' R,R TAB,
A0 , [A0] ' R,[An] TAB, A0 , [A1] ' R,[An] TAB,
A0 , [SB] ' R,[SB] TAB, A0 , [FB] ' R,[FB] TAB,
A0 , abs:16 ' R,abs:16 TAB,
A1 , R0 ' R,R TAB, A1 , R1 ' R,R TAB,
A1 , R2 ' R,R TAB, A1 , R3 ' R,R TAB,
A1 , A0 ' R,R TAB, A1 , A1 ' R,R TAB,
A1 , [A0] ' R,[An] TAB, A1 , [A1] ' R,[An] TAB,
A1 , [SB] ' R,[SB] TAB, A1 , [FB] ' R,[FB] TAB,
A1 , abs:16 ' R,abs:16 TAB,
[A0] , R0 ' [An],R TAB, [A0] , R1 ' [An],R TAB,
[A0] , R2 ' [An],R TAB, [A0] , R3 ' [An],R TAB,
[A0] , A0 ' [An],R TAB, [A0] , A1 ' [An],R TAB,
[A0] , [A0] ' [An],[An] TAB, [A0] , [A1] ' [An],[An] TAB,
[A0] , [SB] ' [An],[SB] TAB, [A0] , [FB] ' [An],[FB] TAB,
[A0] , abs:16 ' [An],abs:16 TAB,
[A1] , R0 ' [An],R TAB, [A1] , R1 ' [An],R TAB,
[A1] , R2 ' [An],R TAB, [A1] , R3 ' [An],R TAB,
[A1] , A0 ' [An],R TAB, [A1] , A1 ' [An],R TAB,
[A1] , [A0] ' [An],[An] TAB, [A1] , [A1] ' [An],[An] TAB,
[A1] , [SB] ' [An],[SB] TAB, [A1] , [FB] ' [An],[FB] TAB,
[A1] , abs:16 ' [An],abs:16 TAB,
[SB] , R0 ' [SB],R TAB, [SB] , R1 ' [SB],R TAB,
[SB] , R2 ' [SB],R TAB, [SB] , R3 ' [SB],R TAB,
[SB] , A0 ' [SB],R TAB, [SB] , A1 ' [SB],R TAB,
[SB] , [A0] ' [SB],[An] TAB, [SB] , [A1] ' [SB],[An] TAB,
[SB] , [SB] ' [SB],[SB] TAB, [SB] , [FB] ' [SB],[FB] TAB,
[SB] , abs:16 ' [SB],abs:16 TAB,
[FB] , R0 ' [FB],R TAB, [FB] , R1 ' [FB],R TAB,
[FB] , R2 ' [FB],R TAB, [FB] , R3 ' [FB],R TAB,
[FB] , A0 ' [FB],R TAB, [FB] , A1 ' [FB],R TAB,
[FB] , [A0] ' [FB],[An] TAB, [FB] , [A1] ' [FB],[An] TAB,
[FB] , [SB] ' [FB],[SB] TAB, [FB] , [FB] ' [FB],[FB] TAB,
[FB] , abs:16 ' [FB],abs:16 TAB,
# , R0 ' #,R TAB, # , R1 ' #,R TAB,
# , R2 ' #,R TAB, # , R3 ' #,R TAB,
# , A0 ' #,R TAB, # , A1 ' #,R TAB,
# , [A0] ' #,[An] TAB, # , [A1] ' #,[An] TAB,
# , [SB] ' #,[SB] TAB, # , [FB] ' #,[FB] TAB,
# , abs:16 ' #,abs:16 TAB,
abs:16 , R0 ' abs:16,R TAB, abs:16 , R1 ' abs:16,R TAB,
abs:16 , R2 ' abs:16,R TAB, abs:16 , R3 ' abs:16,R TAB,
abs:16 , A0 ' abs:16,R TAB, abs:16 , A1 ' abs:16,R TAB,
abs:16 , [A0] ' abs:16,[An] TAB, abs:16 , [A1] ' abs:16,[An] TAB,
abs:16 , [SB] ' abs:16,[SB] TAB, abs:16 , [FB] ' abs:16,[FB] TAB,
abs:16 , abs:16 ' abs:16,abs:16 TAB,
;TABLE
generic %01100000 %01110110 %11111111 %10110000 GROUP4: adc.b
generic %01000000 %01110110 %11111111 %10100000 GROUP4: add.b:g
generic %00100000 %01110110 %11111111 %10010000 GROUP4: and.b:g
generic %10000000 %01110110 %11111111 %11000000 GROUP4: cmp.b:g
generic %11000000 %01110100 %11111111 %01110010 GROUP4: mov.b:g
generic %01010000 %01111100 %11111111 %01111000 GROUP4: mul.b:g
generic %01000000 %01111100 %11111111 %01110000 GROUP4: mulu.b:g
generic %00110000 %01110110 %11111111 %10011000 GROUP4: or.b:g
generic %01110000 %01110110 %11111111 %10111000 GROUP4: sbb.b
generic %01010000 %01110110 %11111111 %10101000 GROUP4: sub.b:g
generic %00000000 %01110110 %11111111 %10000000 GROUP4: tst.b
generic %00010000 %01110110 %11111111 %10001000 GROUP4: xor.b
generic %01100000 %01110111 %11111111 %10110001 GROUP4: adc.w
generic %01000000 %01110111 %11111111 %10100001 GROUP4: add.w:g
generic %00100000 %01110111 %11111111 %10010001 GROUP4: and.w:g
generic %10000000 %01110111 %11111111 %11000001 GROUP4: cmp.w:g
generic %11000000 %01110101 %11111111 %01110011 GROUP4: mov.w:g
generic %01010000 %01111101 %11111111 %01111001 GROUP4: mul.w:g
generic %01000000 %01111101 %11111111 %01110001 GROUP4: mulu.w:g
generic %00110000 %01110111 %11111111 %10011001 GROUP4: or.w:g
generic %01110000 %01110111 %11111111 %10111001 GROUP4: sbb.w
generic %01010000 %01110111 %11111111 %10101001 GROUP4: sub.w:g
generic %00000000 %01110111 %11111111 %10000001 GROUP4: tst.w
generic %00010000 %01110111 %11111111 %10001001 GROUP4: xor.w
\ ----------------------------------------------------------------------------------------------
: r1h, <OPC> 1 + c@ $F0 and <M> 1+ c@ $0F and or <M> 1+ c! ;
: R1H,R r1h, r,r ;
: R1H,[An] r1h, r,[An] ;
: R1H,[SB] r1h, r,[SB] ;
: R1H,[FB] r1h, r,[FB] ;
: R1H,abs:16 r1h, r,abs:16 ;
\ ----------------------------------------------------------------------------------------------
: rot# CASE
1 of $00 endof
2 of $10 endof
3 of $20 endof
4 of $30 endof
5 of $40 endof
6 of $50 endof
7 of $60 endof
8 of $70 endof
-1 of $80 endof
-2 of $90 endof
-3 of $A0 endof
-4 of $B0 endof
-5 of $C0 endof
-6 of $D0 endof
-7 of $E0 endof
-8 of $F0 endof
abort
ENDCASE ;
: rot#, s-opnd? 0= ABORT" operand expected"
<OPC> 2 + c@ <OPC> c!
s-opnd? d-opnd? and IF swap THEN
rot# <M> 1+ c@ $0F and or <M> 1+ c! ;
: rot#,R rot#,
>opc OPC, ;
: rot#,[An] opnd? <d-opnd> !
rot#, ,[An]
>opc OPC,
d-opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: rot#,[SB] opnd? <d-opnd> !
rot#, ,[SB]
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: rot#,[FB] opnd? <d-opnd> !
rot#, ,[FB]
>opc OPC,
>8B? ABORT" displacement > 8 Bit"
X C, ;
: rot#,abs:16 opnd? <d-opnd> !
rot#, ,abs:16
>opc OPC,
X , ;
Table: rot-group
R1H , R0L ' R1H,R TAB, R1H , R0H ' R1H,R TAB,
R1H , R1L ' R1H,R TAB, R1H , R3 ' R1H,R TAB,
R1H , A0 ' R1H,R TAB, R1H , A1 ' R1H,R TAB,
R1H , [A0] ' R1H,[An] TAB, R1H , [A1] ' R1H,[An] TAB,
R1H , [SB] ' R1H,[SB] TAB, R1H , [FB] ' R1H,[FB] TAB,
R1H , abs:16 ' R1H,abs:16 TAB,
# , R0L ' rot#,R TAB, # , R0H ' rot#,R TAB,
# , R1L ' rot#,R TAB, # , R3 ' rot#,R TAB,
# , A0 ' rot#,R TAB, # , A1 ' rot#,R TAB,
# , [A0] ' rot#,[An] TAB, # , [A1] ' rot#,[An] TAB,
# , [SB] ' rot#,[SB] TAB, # , [FB] ' rot#,[FB] TAB,
# , abs:16 ' rot#,abs:16 TAB,
;TABLE
rot-group %00001111 %11100001 %01101111 %01110101 GROUP4: rot.w
rot-group %00001111 %11101001 %11101111 %01110101 GROUP4: shl.w
rot-group %00001111 %11110001 %11111111 %01110101 GROUP4: sha.w
rot-group %00001111 %11100000 %01101111 %01110100 GROUP4: rot.b
rot-group %00001111 %11101000 %11101111 %01110100 GROUP4: shl.b
rot-group %00001111 %11110000 %11111111 %01110100 GROUP4: sha.b
\ ----------------------------------------------------------------------------------------------
' noop alias bit
: bit, s-opnd? 0= ABORT" operand expected"
<OPC> 1+ C@ $F0 AND <M> 1+ c@ $0F AND OR <M> 1+ c! ;
: bit,R bit,
>opc OPC,
%00000111 and
X c, ;
: bit[An] <OPC> 1+ c@ $F0 AND <M> 1+ c@ 4 rshift or <M> 1+ c!
<M> 1+ C@ $0F AND
CASE
%0110 of opnd? \ [A0]
IF abs8? IF %1000 ELSE %1100 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
%0111 of opnd? \ [A1]
IF abs8? IF %1001 ELSE %1101 THEN
<M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
endof
ENDCASE
>opc OPC,
opnd?
IF abs8? IF X C, ELSE X , THEN THEN ;
: bit,[SB] opnd? <d-opnd> !
bit, ,[SB]
3 lshift swap %00000111 and or
>abs8? IF %1110 <M> 1+ C@ $F0 AND OR <M> 1+ C! THEN
>opc OPC,
abs8? IF X C, ELSE X , THEN ;
: bit,[FB] opnd? <d-opnd> !
bit, ,[FB]
>opc OPC,
3 lshift swap %00000111 and or
>8B? ABORT" displacement > 8 Bit"
X C, ;
: bit,abs:16 opnd? <d-opnd> !
bit, ,abs:16
>opc OPC,
3 lshift swap %00000111 and or
X , ;
Table: bit-group
bit , R0 ' bit,R TAB, bit , R1 ' bit,R TAB,
bit , R2 ' bit,R TAB, bit , R3 ' bit,R TAB,
bit , A0 ' bit,R TAB, bit , A1 ' bit,R TAB,
[A0] ' bit[An] TAB, [A1] ' bit[An] TAB,
bit , [SB] ' bit,[SB] TAB, bit , [FB] ' bit,[FB] TAB,
bit , abs:16 ' bit,abs:16 TAB,
;TABLE
bit-group %01001111 %01111110 GROUP2: band
bit-group %10001111 %01111110 GROUP2: bclr:g
bit-group %01011111 %01111110 GROUP2: bnand
bit-group %01111111 %01111110 GROUP2: bnor
bit-group %10101111 %01111110 GROUP2: bnot:g
bit-group %00111111 %01111110 GROUP2: bntst
bit-group %11011111 %01111110 GROUP2: bnxor
bit-group %01101111 %01111110 GROUP2: bor
bit-group %10011111 %01111110 GROUP2: bset:g
bit-group %10111111 %01111110 GROUP2: btst:g
bit-group %00001111 %01111110 GROUP2: btstc
bit-group %00011111 %01111110 GROUP2: btsts
bit-group %11001111 %01111110 GROUP2: bxor
\ ----------------------------------------------------------------------------------------------
\ register definition
' R2 Alias rp
' R0 Alias tos
' A1 Alias ip
' A0 Alias w
' [A1] Alias [ip]
' [A0] Alias [w]
\ ----------------------------------------------------------------------------------------------
: IF, dup $FF u> IF dup 8 rshift X c, THEN X c, ;
$68 Constant u<
$69 Constant u<=
$6A Constant 0<>
$6B Constant 0>=
$6C Constant u>=
$6D Constant u>
$6E Constant 0=
$6F Constant 0<
$7DC8 Constant >
$7DC9 Constant no
$7DCA Constant <
$7DCC Constant <=
$7DCD Constant o
$7DCE Constant >=
: IF IF, X here 0 X c, reset ;
: THEN X here over - swap X c! reset ;
: AHEAD $FE IF ;
: ELSE AHEAD swap THEN reset ;
: WHILE IF swap reset ;
: BEGIN X here reset ;
: UNTIL IF, X here - X c, reset ;
: AGAIN $FE UNTIL reset ;
: REPEAT AGAIN THEN reset ;
\ include asm-test.fs
HERE SWAP -
CR .( Length of Assembler: ) . .( Bytes ) CR
|