Home » Archimedes archive » Acorn User » AU 1997-Xmas A.adf » StrongHelp » !Manuals/Assembly
!Manuals/Assembly
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1997-Xmas A.adf » StrongHelp |
| Filename: | !Manuals/Assembly |
| Read OK: | ✔ |
| File size: | 13E0 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
HELP( � ����, ��� $ DIR$ D F������. !Root t E������� cond 4 F����{ � Op2 � E���7���n PC h F����[ w Rd � F���$p � Rn h
F���tk � S F����8?A Shift \ F����V�� bits DATA. Instructions :
#wrap off
#tab
ADC Add with Carry MUL Multiply
ADD Add MVN Move Negative
AND And ORR Inclusive OR
B Branch RSB Reverse Subtract
BIC Bit Clear RSC Reverse Subtract with Carry
CMN Compare Negative SBC Subtract with Carry
CMP Compare STM Store Multiple
EOR Exlusive OR STR Store Register
LDM Load Multiple SUB Subtract
LDR Load Register SWI Software Interrupt
MLA Multiply with Accumulate TEQ Test for Equality
MOV Move TST Test Masked
#tab
<Bit patterns=>bits> <Condition codes=>cond> <S suffix=>S> < Rd > < Rn > < Op2 > DATA� Condition codes
All instructions are conditionally executed. If the condition in the top four bits of the instruction is not met, then even illegal instructions will have no effect...
#wrap off; tab
Condition field Execute IF
#Line
0000 EQ : Z (equal)
0001 NE : ~Z (not equal)
0010 CS : C (unsigned higher or same)
0011 CC : ~C (unsigned lower)
0100 MI : N (negative)
0101 PL : ~N (positive or zero)
0110 VS : V (overflow)
0111 VC : ~V (no overflow)
1000 HI : C and ~Z (unsigned higher)
1001 LS : ~C or Z (unsigned lower or same)
1010 GE : N = V (signed higher or same)
1011 LT : N != V (signed lower)
1100 GT : ~Z and (N = V) (signed higher)
1101 LE : Z or (N != V) (signed lower or same)
1110 AL : 1 (always)
1111 NV : 0 (never)
#tab; wrap nojoin
( 1 is true, 0 is false, ~ is NOT )
Note: The NV code shouldn't be used anymore. If you want a no-op, you should use something like MOV R0,R0DATA� Op2
This can take several forms :
- Reg
- Reg <shift> #constant
- Reg <shift> Reg
(Note: This takes an extra clock cycle)
- #constant
( of the form Byte ROR n*2, n is 0..15 )DATAn R15
3 2 1
10987654321098765432109876543210
%NZCOIF....program.counter.....MM
00 = User mode
FIRQ Disable 01 = FIRQ mode
IRQ Disable 10 = IRQ mode
Overflow 11 = Supervisor mode
Carry / Not borrow / Rotate Extend
Zero
Negative / Signed less than DATAw Rd
Rd can be any of the registers from R0 to R15. If Rd = R15 then only the PC bits will be set, not the flags. DATA� Rn
Rn can be any of the registers from R0 to R15. If Rn = R15 then only the PC bits are used. The flag bits will appear cleared.DATA� S
Flags will only be updated if this is present. The S flag is implicit in CMP, CMN, TEQ and TST
SUBS R1,R1,R2 ;
ADD R1,R1,R3 ;
Beq xxx ; jump if R1-R2 = 0DATAA Shift
The shift types are :
LSL Logical Shift Left
LSR Logical Shift Right
ASR Arithmetic Shift Right
ROR ROtate Right
RRX Rotate Right eXtended
RRX is special. It is a rotate by one, where bit 31 = old carry and new carry = old bit 0.
For all shifts the carry flag is set to the last bit shifted out. DATA� Bit patterns
#wrap off; fcode
3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
-------+---+-+-------+-+-------+-------+-----------------------
| cond |0 0|i| opcod |s| Rn | Rd | Operand2 | Data processing
+-------+---+-+-----+-+-+-------+-------+-------+-------+-------+
| cond |0 0 0 0 0 0|a|s| Rd | Rn | Rs |1 0 0 1| Rm | Multiply
+-------+-------+---+-+---------+-------+-------+-------+-------+
| cond |0 0 0 1|x x x x x x x x x x x x x x x x 1 x x 1 x x x x| Undefined
+-------+---+-+-+-+-+-+-+-------+-------+-----------------------+
| cond |0 1|i|P|U|B|W|L| Rn | Rd | Offset | LDR / STR
+-------+---+-+-+-+-+-+-+-------+-------+-----------------------+
| cond |0 1 1|x x x x x x x x x x x x x x x x x x x x 1 x x x x| Undefined
+-------+-----+-+-+-+-+-+-------+-------------------------------+
| cond |1 0 0|P|U|S|W|L| Rn | Register list | LDM / STM
+-------+-----+-+-+-+-+-+-------+-------------------------------+
| cond |1 0 1|L| word offset | Branch
+-------+-----+-+-+-+-+-+-------+-------+-------+---------------+
| cond |1 1 0|P|U|N|W|L| Rn | CRd | Cp# | Offset | Coproc Data Transfer
+-------+-----+-+-+-+-+-+-------+-------+-------+-----+-+-------+
| cond |1 1 1 0| Opcod | CRn | CRd | Cp# | CP |0| CRm | Coproc Data op
+-------+-------+-----+-+-------+-------+-------+-----+-+-------+
| cond |1 1 1 0|Opcod|L| CRn | Rd | Cp# | CP |1| CRm | Coproc RegTrans
+-------+-------+-----+-+-------+-------+-------+-----+-+-------+
| cond |1 1 1 1| swi number | SWI
-------+-------+-----------------------------------------------
3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
#f; wrap on 00000000 48 45 4c 50 28 00 00 00 c9 00 00 00 ff ff ff ff |HELP(...........|
00000010 2c 00 00 00 00 fd ff ff 00 00 00 00 10 01 00 00 |,...............|
00000020 00 01 00 00 00 00 00 00 24 00 00 00 44 49 52 24 |........$...DIR$|
00000030 18 01 00 00 18 01 00 00 44 01 00 00 46 fd ff ff |........D...F...|
00000040 f7 c8 c1 fc 2e 02 00 00 13 00 00 00 00 00 00 00 |................|
00000050 21 52 6f 6f 74 00 00 00 74 03 00 00 45 fd ff ff |!Root...t...E...|
00000060 f8 b3 dd ff c0 03 00 00 13 00 00 00 00 00 00 00 |................|
00000070 63 6f 6e 64 00 00 00 00 34 07 00 00 46 fd ff ff |cond....4...F...|
00000080 85 7b 08 00 c4 00 00 00 13 00 00 00 00 00 00 00 |.{..............|
00000090 4f 70 32 00 f8 07 00 00 45 fd ff ff 37 9d e8 df |Op2.....E...7...|
000000a0 6e 01 00 00 13 00 00 00 00 00 00 00 50 43 00 00 |n...........PC..|
000000b0 68 09 00 00 46 fd ff ff b0 5b 08 00 77 00 00 00 |h...F....[..w...|
000000c0 13 00 00 00 00 00 00 00 52 64 00 00 e0 09 00 00 |........Rd......|
000000d0 46 fd ff ff 24 70 08 00 88 00 00 00 13 00 00 00 |F...$p..........|
000000e0 00 00 00 00 52 6e 00 00 68 0a 00 00 46 fd ff ff |....Rn..h...F...|
000000f0 74 6b 08 00 b0 00 00 00 13 00 00 00 00 00 00 00 |tk..............|
00000100 53 00 00 00 18 0b 00 00 46 fd ff ff d1 38 3f 03 |S.......F....8?.|
00000110 41 01 00 00 13 00 00 00 00 00 00 00 53 68 69 66 |A...........Shif|
00000120 74 00 00 00 5c 0c 00 00 46 fd ff ff f4 56 d4 e5 |t...\...F....V..|
00000130 84 07 00 00 13 00 00 00 00 00 00 00 62 69 74 73 |............bits|
00000140 00 00 00 00 44 41 54 41 2e 02 00 00 49 6e 73 74 |....DATA....Inst|
00000150 72 75 63 74 69 6f 6e 73 20 3a 0a 23 77 72 61 70 |ructions :.#wrap|
00000160 20 6f 66 66 0a 23 74 61 62 0a 41 44 43 09 41 64 | off.#tab.ADC.Ad|
00000170 64 20 77 69 74 68 20 43 61 72 72 79 09 09 4d 55 |d with Carry..MU|
00000180 4c 09 4d 75 6c 74 69 70 6c 79 0a 41 44 44 09 41 |L.Multiply.ADD.A|
00000190 64 64 09 09 09 4d 56 4e 09 4d 6f 76 65 20 4e 65 |dd...MVN.Move Ne|
000001a0 67 61 74 69 76 65 0a 41 4e 44 09 41 6e 64 09 09 |gative.AND.And..|
000001b0 09 4f 52 52 09 49 6e 63 6c 75 73 69 76 65 20 4f |.ORR.Inclusive O|
000001c0 52 0a 42 09 42 72 61 6e 63 68 09 09 09 52 53 42 |R.B.Branch...RSB|
000001d0 09 52 65 76 65 72 73 65 20 53 75 62 74 72 61 63 |.Reverse Subtrac|
000001e0 74 0a 42 49 43 09 42 69 74 20 43 6c 65 61 72 09 |t.BIC.Bit Clear.|
000001f0 09 52 53 43 09 52 65 76 65 72 73 65 20 53 75 62 |.RSC.Reverse Sub|
00000200 74 72 61 63 74 20 77 69 74 68 20 43 61 72 72 79 |tract with Carry|
00000210 0a 43 4d 4e 09 43 6f 6d 70 61 72 65 20 4e 65 67 |.CMN.Compare Neg|
00000220 61 74 69 76 65 09 53 42 43 09 53 75 62 74 72 61 |ative.SBC.Subtra|
00000230 63 74 20 77 69 74 68 20 43 61 72 72 79 0a 43 4d |ct with Carry.CM|
00000240 50 09 43 6f 6d 70 61 72 65 09 09 09 53 54 4d 09 |P.Compare...STM.|
00000250 53 74 6f 72 65 20 4d 75 6c 74 69 70 6c 65 0a 45 |Store Multiple.E|
00000260 4f 52 09 45 78 6c 75 73 69 76 65 20 4f 52 09 09 |OR.Exlusive OR..|
00000270 53 54 52 09 53 74 6f 72 65 20 52 65 67 69 73 74 |STR.Store Regist|
00000280 65 72 0a 4c 44 4d 09 4c 6f 61 64 20 4d 75 6c 74 |er.LDM.Load Mult|
00000290 69 70 6c 65 09 09 53 55 42 09 53 75 62 74 72 61 |iple..SUB.Subtra|
000002a0 63 74 0a 4c 44 52 09 4c 6f 61 64 20 52 65 67 69 |ct.LDR.Load Regi|
000002b0 73 74 65 72 09 09 53 57 49 09 53 6f 66 74 77 61 |ster..SWI.Softwa|
000002c0 72 65 20 49 6e 74 65 72 72 75 70 74 0a 4d 4c 41 |re Interrupt.MLA|
000002d0 09 4d 75 6c 74 69 70 6c 79 20 77 69 74 68 20 41 |.Multiply with A|
000002e0 63 63 75 6d 75 6c 61 74 65 09 54 45 51 09 54 65 |ccumulate.TEQ.Te|
000002f0 73 74 20 66 6f 72 20 45 71 75 61 6c 69 74 79 0a |st for Equality.|
00000300 4d 4f 56 09 4d 6f 76 65 09 09 09 54 53 54 09 54 |MOV.Move...TST.T|
00000310 65 73 74 20 4d 61 73 6b 65 64 0a 23 74 61 62 0a |est Masked.#tab.|
00000320 0a 20 3c 42 69 74 20 70 61 74 74 65 72 6e 73 3d |. <Bit patterns=|
00000330 3e 62 69 74 73 3e 20 3c 43 6f 6e 64 69 74 69 6f |>bits> <Conditio|
00000340 6e 20 63 6f 64 65 73 3d 3e 63 6f 6e 64 3e 20 3c |n codes=>cond> <|
00000350 53 20 73 75 66 66 69 78 3d 3e 53 3e 20 3c 20 52 |S suffix=>S> < R|
00000360 64 20 3e 20 3c 20 52 6e 20 3e 20 3c 20 4f 70 32 |d > < Rn > < Op2|
00000370 20 3e 00 00 44 41 54 41 c0 03 00 00 43 6f 6e 64 | >..DATA....Cond|
00000380 69 74 69 6f 6e 20 63 6f 64 65 73 0a 41 6c 6c 20 |ition codes.All |
00000390 69 6e 73 74 72 75 63 74 69 6f 6e 73 20 61 72 65 |instructions are|
000003a0 20 63 6f 6e 64 69 74 69 6f 6e 61 6c 6c 79 20 65 | conditionally e|
000003b0 78 65 63 75 74 65 64 2e 20 49 66 20 74 68 65 20 |xecuted. If the |
000003c0 63 6f 6e 64 69 74 69 6f 6e 20 69 6e 20 74 68 65 |condition in the|
000003d0 20 74 6f 70 20 66 6f 75 72 20 62 69 74 73 20 6f | top four bits o|
000003e0 66 20 74 68 65 20 69 6e 73 74 72 75 63 74 69 6f |f the instructio|
000003f0 6e 20 69 73 20 6e 6f 74 20 6d 65 74 2c 20 74 68 |n is not met, th|
00000400 65 6e 20 65 76 65 6e 20 69 6c 6c 65 67 61 6c 20 |en even illegal |
00000410 69 6e 73 74 72 75 63 74 69 6f 6e 73 20 77 69 6c |instructions wil|
00000420 6c 20 68 61 76 65 20 6e 6f 20 65 66 66 65 63 74 |l have no effect|
00000430 2e 2e 2e 0a 0a 23 77 72 61 70 20 6f 66 66 3b 20 |.....#wrap off; |
00000440 74 61 62 0a 43 6f 6e 64 69 74 69 6f 6e 20 66 69 |tab.Condition fi|
00000450 65 6c 64 09 20 09 20 09 45 78 65 63 75 74 65 20 |eld. . .Execute |
00000460 49 46 0a 23 4c 69 6e 65 0a 20 20 30 30 30 30 09 |IF.#Line. 0000.|
00000470 45 51 09 3a 09 20 5a 09 09 28 65 71 75 61 6c 29 |EQ.:. Z..(equal)|
00000480 0a 20 20 30 30 30 31 09 4e 45 09 3a 09 7e 5a 09 |. 0001.NE.:.~Z.|
00000490 09 28 6e 6f 74 20 65 71 75 61 6c 29 0a 20 20 30 |.(not equal). 0|
000004a0 30 31 30 09 43 53 09 3a 09 20 43 09 09 28 75 6e |010.CS.:. C..(un|
000004b0 73 69 67 6e 65 64 20 68 69 67 68 65 72 20 6f 72 |signed higher or|
000004c0 20 73 61 6d 65 29 0a 20 20 30 30 31 31 09 43 43 | same). 0011.CC|
000004d0 09 3a 09 7e 43 09 09 28 75 6e 73 69 67 6e 65 64 |.:.~C..(unsigned|
000004e0 20 6c 6f 77 65 72 29 0a 20 20 30 31 30 30 09 4d | lower). 0100.M|
000004f0 49 09 3a 09 20 4e 09 09 28 6e 65 67 61 74 69 76 |I.:. N..(negativ|
00000500 65 29 0a 20 20 30 31 30 31 09 50 4c 09 3a 09 7e |e). 0101.PL.:.~|
00000510 4e 09 09 28 70 6f 73 69 74 69 76 65 20 6f 72 20 |N..(positive or |
00000520 7a 65 72 6f 29 0a 20 20 30 31 31 30 09 56 53 09 |zero). 0110.VS.|
00000530 3a 09 20 56 09 09 28 6f 76 65 72 66 6c 6f 77 29 |:. V..(overflow)|
00000540 0a 20 20 30 31 31 31 09 56 43 09 3a 09 7e 56 09 |. 0111.VC.:.~V.|
00000550 09 28 6e 6f 20 6f 76 65 72 66 6c 6f 77 29 0a 20 |.(no overflow). |
00000560 20 31 30 30 30 09 48 49 09 3a 09 20 43 20 61 6e | 1000.HI.:. C an|
00000570 64 20 7e 5a 09 28 75 6e 73 69 67 6e 65 64 20 68 |d ~Z.(unsigned h|
00000580 69 67 68 65 72 29 0a 20 20 31 30 30 31 09 4c 53 |igher). 1001.LS|
00000590 09 3a 09 7e 43 20 6f 72 20 5a 09 09 28 75 6e 73 |.:.~C or Z..(uns|
000005a0 69 67 6e 65 64 20 6c 6f 77 65 72 20 6f 72 20 73 |igned lower or s|
000005b0 61 6d 65 29 0a 20 20 31 30 31 30 09 47 45 09 3a |ame). 1010.GE.:|
000005c0 09 20 4e 20 3d 20 56 09 09 28 73 69 67 6e 65 64 |. N = V..(signed|
000005d0 20 68 69 67 68 65 72 20 6f 72 20 73 61 6d 65 29 | higher or same)|
000005e0 0a 20 20 31 30 31 31 09 4c 54 09 3a 09 20 4e 20 |. 1011.LT.:. N |
000005f0 21 3d 20 56 09 09 28 73 69 67 6e 65 64 20 6c 6f |!= V..(signed lo|
00000600 77 65 72 29 0a 20 20 31 31 30 30 09 47 54 09 3a |wer). 1100.GT.:|
00000610 09 7e 5a 20 61 6e 64 20 28 4e 20 3d 20 56 29 09 |.~Z and (N = V).|
00000620 28 73 69 67 6e 65 64 20 68 69 67 68 65 72 29 0a |(signed higher).|
00000630 20 20 31 31 30 31 09 4c 45 09 3a 09 20 5a 20 6f | 1101.LE.:. Z o|
00000640 72 20 28 4e 20 21 3d 20 56 29 09 28 73 69 67 6e |r (N != V).(sign|
00000650 65 64 20 6c 6f 77 65 72 20 6f 72 20 73 61 6d 65 |ed lower or same|
00000660 29 0a 20 20 31 31 31 30 09 41 4c 09 3a 09 20 31 |). 1110.AL.:. 1|
00000670 09 09 28 61 6c 77 61 79 73 29 0a 20 20 31 31 31 |..(always). 111|
00000680 31 09 4e 56 09 3a 09 20 30 09 09 28 6e 65 76 65 |1.NV.:. 0..(neve|
00000690 72 29 0a 23 74 61 62 3b 20 77 72 61 70 20 6e 6f |r).#tab; wrap no|
000006a0 6a 6f 69 6e 0a 0a 28 20 31 20 69 73 20 74 72 75 |join..( 1 is tru|
000006b0 65 2c 20 30 20 69 73 20 66 61 6c 73 65 2c 20 7e |e, 0 is false, ~|
000006c0 20 69 73 20 4e 4f 54 20 29 0a 0a 4e 6f 74 65 3a | is NOT )..Note:|
000006d0 20 54 68 65 20 4e 56 20 63 6f 64 65 20 73 68 6f | The NV code sho|
000006e0 75 6c 64 6e 27 74 20 62 65 20 75 73 65 64 20 61 |uldn't be used a|
000006f0 6e 79 6d 6f 72 65 2e 20 49 66 20 79 6f 75 20 77 |nymore. If you w|
00000700 61 6e 74 20 61 20 6e 6f 2d 6f 70 2c 20 79 6f 75 |ant a no-op, you|
00000710 20 73 68 6f 75 6c 64 20 75 73 65 20 73 6f 6d 65 | should use some|
00000720 74 68 69 6e 67 20 6c 69 6b 65 20 4d 4f 56 20 52 |thing like MOV R|
00000730 30 2c 52 30 44 41 54 41 c4 00 00 00 4f 70 32 0a |0,R0DATA....Op2.|
00000740 54 68 69 73 20 63 61 6e 20 74 61 6b 65 20 73 65 |This can take se|
00000750 76 65 72 61 6c 20 66 6f 72 6d 73 20 3a 0a 20 20 |veral forms :. |
00000760 20 2d 09 52 65 67 0a 20 20 20 2d 09 52 65 67 20 | -.Reg. -.Reg |
00000770 3c 73 68 69 66 74 3e 20 23 63 6f 6e 73 74 61 6e |<shift> #constan|
00000780 74 0a 20 20 20 2d 09 52 65 67 20 3c 73 68 69 66 |t. -.Reg <shif|
00000790 74 3e 20 52 65 67 0a 09 28 4e 6f 74 65 3a 20 54 |t> Reg..(Note: T|
000007a0 68 69 73 20 74 61 6b 65 73 20 61 6e 20 65 78 74 |his takes an ext|
000007b0 72 61 20 63 6c 6f 63 6b 20 63 79 63 6c 65 29 0a |ra clock cycle).|
000007c0 20 20 20 2d 09 23 63 6f 6e 73 74 61 6e 74 0a 09 | -.#constant..|
000007d0 28 20 6f 66 20 74 68 65 20 66 6f 72 6d 20 42 79 |( of the form By|
000007e0 74 65 20 52 4f 52 20 6e 2a 32 2c 20 6e 20 69 73 |te ROR n*2, n is|
000007f0 20 30 2e 2e 31 35 20 29 44 41 54 41 6e 01 00 00 | 0..15 )DATAn...|
00000800 52 31 35 0a 20 20 33 20 20 20 20 20 20 20 20 20 |R15. 3 |
00000810 32 20 20 20 20 20 20 20 20 20 31 0a 20 31 30 39 |2 1. 109|
00000820 38 37 36 35 34 33 32 31 30 39 38 37 36 35 34 33 |8765432109876543|
00000830 32 31 30 39 38 37 36 35 34 33 32 31 30 0a 25 4e |2109876543210.%N|
00000840 5a 43 4f 49 46 2e 2e 2e 2e 70 72 6f 67 72 61 6d |ZCOIF....program|
00000850 2e 63 6f 75 6e 74 65 72 2e 2e 2e 2e 2e 4d 4d 0a |.counter.....MM.|
00000860 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000870 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 30 | 0|
00000880 30 20 3d 20 55 73 65 72 20 6d 6f 64 65 0a 20 20 |0 = User mode. |
00000890 20 20 20 20 46 49 52 51 20 44 69 73 61 62 6c 65 | FIRQ Disable|
000008a0 20 20 20 20 20 20 20 20 20 20 20 20 20 30 31 20 | 01 |
000008b0 3d 20 46 49 52 51 20 6d 6f 64 65 0a 20 20 20 20 |= FIRQ mode. |
000008c0 20 49 52 51 20 44 69 73 61 62 6c 65 20 20 20 20 | IRQ Disable |
000008d0 20 20 20 20 20 20 20 20 20 20 20 31 30 20 3d 20 | 10 = |
000008e0 49 52 51 20 6d 6f 64 65 0a 20 20 20 20 4f 76 65 |IRQ mode. Ove|
000008f0 72 66 6c 6f 77 20 20 20 20 20 20 20 20 20 20 20 |rflow |
00000900 20 20 20 20 20 20 20 20 31 31 20 3d 20 53 75 70 | 11 = Sup|
00000910 65 72 76 69 73 6f 72 20 6d 6f 64 65 0a 20 20 20 |ervisor mode. |
00000920 43 61 72 72 79 20 2f 20 4e 6f 74 20 62 6f 72 72 |Carry / Not borr|
00000930 6f 77 20 2f 20 52 6f 74 61 74 65 20 45 78 74 65 |ow / Rotate Exte|
00000940 6e 64 0a 20 20 5a 65 72 6f 0a 20 4e 65 67 61 74 |nd. Zero. Negat|
00000950 69 76 65 20 2f 20 53 69 67 6e 65 64 20 6c 65 73 |ive / Signed les|
00000960 73 20 74 68 61 6e 00 00 44 41 54 41 77 00 00 00 |s than..DATAw...|
00000970 52 64 0a 52 64 20 63 61 6e 20 62 65 20 61 6e 79 |Rd.Rd can be any|
00000980 20 6f 66 20 74 68 65 20 72 65 67 69 73 74 65 72 | of the register|
00000990 73 20 66 72 6f 6d 20 52 30 20 74 6f 20 52 31 35 |s from R0 to R15|
000009a0 2e 20 49 66 20 52 64 20 3d 20 52 31 35 20 74 68 |. If Rd = R15 th|
000009b0 65 6e 20 6f 6e 6c 79 20 74 68 65 20 50 43 20 62 |en only the PC b|
000009c0 69 74 73 20 77 69 6c 6c 20 62 65 20 73 65 74 2c |its will be set,|
000009d0 20 6e 6f 74 20 74 68 65 20 66 6c 61 67 73 2e 00 | not the flags..|
000009e0 44 41 54 41 88 00 00 00 52 6e 0a 52 6e 20 63 61 |DATA....Rn.Rn ca|
000009f0 6e 20 62 65 20 61 6e 79 20 6f 66 20 74 68 65 20 |n be any of the |
00000a00 72 65 67 69 73 74 65 72 73 20 66 72 6f 6d 20 52 |registers from R|
00000a10 30 20 74 6f 20 52 31 35 2e 20 49 66 20 52 6e 20 |0 to R15. If Rn |
00000a20 3d 20 52 31 35 20 74 68 65 6e 20 6f 6e 6c 79 20 |= R15 then only |
00000a30 74 68 65 20 50 43 20 62 69 74 73 20 61 72 65 20 |the PC bits are |
00000a40 75 73 65 64 2e 20 54 68 65 20 66 6c 61 67 20 62 |used. The flag b|
00000a50 69 74 73 20 77 69 6c 6c 20 61 70 70 65 61 72 20 |its will appear |
00000a60 63 6c 65 61 72 65 64 2e 44 41 54 41 b0 00 00 00 |cleared.DATA....|
00000a70 53 0a 46 6c 61 67 73 20 77 69 6c 6c 20 6f 6e 6c |S.Flags will onl|
00000a80 79 20 62 65 20 75 70 64 61 74 65 64 20 69 66 20 |y be updated if |
00000a90 74 68 69 73 20 69 73 20 70 72 65 73 65 6e 74 2e |this is present.|
00000aa0 20 54 68 65 20 53 20 66 6c 61 67 20 69 73 20 69 | The S flag is i|
00000ab0 6d 70 6c 69 63 69 74 20 69 6e 20 43 4d 50 2c 20 |mplicit in CMP, |
00000ac0 43 4d 4e 2c 20 54 45 51 20 61 6e 64 20 54 53 54 |CMN, TEQ and TST|
00000ad0 0a 0a 20 20 53 55 42 53 20 52 31 2c 52 31 2c 52 |.. SUBS R1,R1,R|
00000ae0 32 09 09 3b 0a 20 20 41 44 44 20 20 52 31 2c 52 |2..;. ADD R1,R|
00000af0 31 2c 52 33 09 09 3b 20 0a 20 20 42 65 71 20 20 |1,R3..; . Beq |
00000b00 78 78 78 09 09 3b 20 6a 75 6d 70 20 69 66 20 52 |xxx..; jump if R|
00000b10 31 2d 52 32 20 3d 20 30 44 41 54 41 41 01 00 00 |1-R2 = 0DATAA...|
00000b20 53 68 69 66 74 0a 54 68 65 20 73 68 69 66 74 20 |Shift.The shift |
00000b30 74 79 70 65 73 20 61 72 65 20 3a 0a 20 20 4c 53 |types are :. LS|
00000b40 4c 09 4c 6f 67 69 63 61 6c 20 53 68 69 66 74 20 |L.Logical Shift |
00000b50 4c 65 66 74 0a 20 20 4c 53 52 09 4c 6f 67 69 63 |Left. LSR.Logic|
00000b60 61 6c 20 53 68 69 66 74 20 52 69 67 68 74 0a 20 |al Shift Right. |
00000b70 20 41 53 52 09 41 72 69 74 68 6d 65 74 69 63 20 | ASR.Arithmetic |
00000b80 53 68 69 66 74 20 52 69 67 68 74 0a 20 20 52 4f |Shift Right. RO|
00000b90 52 09 52 4f 74 61 74 65 20 52 69 67 68 74 0a 20 |R.ROtate Right. |
00000ba0 20 52 52 58 09 52 6f 74 61 74 65 20 52 69 67 68 | RRX.Rotate Righ|
00000bb0 74 20 65 58 74 65 6e 64 65 64 0a 0a 52 52 58 20 |t eXtended..RRX |
00000bc0 69 73 20 73 70 65 63 69 61 6c 2e 20 49 74 20 69 |is special. It i|
00000bd0 73 20 61 20 72 6f 74 61 74 65 20 62 79 20 6f 6e |s a rotate by on|
00000be0 65 2c 20 77 68 65 72 65 20 62 69 74 20 33 31 20 |e, where bit 31 |
00000bf0 3d 20 6f 6c 64 20 63 61 72 72 79 20 61 6e 64 20 |= old carry and |
00000c00 6e 65 77 20 63 61 72 72 79 20 3d 20 6f 6c 64 20 |new carry = old |
00000c10 62 69 74 20 30 2e 0a 0a 46 6f 72 20 61 6c 6c 20 |bit 0...For all |
00000c20 73 68 69 66 74 73 20 74 68 65 20 63 61 72 72 79 |shifts the carry|
00000c30 20 66 6c 61 67 20 69 73 20 73 65 74 20 74 6f 20 | flag is set to |
00000c40 74 68 65 20 6c 61 73 74 20 62 69 74 20 73 68 69 |the last bit shi|
00000c50 66 74 65 64 20 6f 75 74 2e 00 00 00 44 41 54 41 |fted out....DATA|
00000c60 84 07 00 00 42 69 74 20 70 61 74 74 65 72 6e 73 |....Bit patterns|
00000c70 0a 23 77 72 61 70 20 6f 66 66 3b 20 66 63 6f 64 |.#wrap off; fcod|
00000c80 65 0a 20 33 20 33 20 32 20 32 20 32 20 32 20 32 |e. 3 3 2 2 2 2 2|
00000c90 20 32 20 32 20 32 20 32 20 32 20 31 20 31 20 31 | 2 2 2 2 2 1 1 1|
00000ca0 20 31 20 31 20 31 20 31 20 31 20 31 20 31 0a 20 | 1 1 1 1 1 1 1. |
00000cb0 31 20 30 20 39 20 38 20 37 20 36 20 35 20 34 20 |1 0 9 8 7 6 5 4 |
00000cc0 33 20 32 20 31 20 30 20 39 20 38 20 37 20 36 20 |3 2 1 0 9 8 7 6 |
00000cd0 35 20 34 20 33 20 32 20 31 20 30 20 39 20 38 20 |5 4 3 2 1 0 9 8 |
00000ce0 37 20 36 20 35 20 34 20 33 20 32 20 31 20 30 0a |7 6 5 4 3 2 1 0.|
00000cf0 20 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2b 2d 2b 2d | -------+---+-+-|
00000d00 2d 2d 2d 2d 2d 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d |------+-+-------|
00000d10 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d |+-------+-------|
00000d20 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000d30 0a 7c 20 63 6f 6e 64 20 20 7c 30 20 30 7c 69 7c |.| cond |0 0|i||
00000d40 20 6f 70 63 6f 64 20 7c 73 7c 20 20 20 52 6e 20 | opcod |s| Rn |
00000d50 20 7c 20 20 20 52 64 20 20 7c 20 20 20 20 20 20 | | Rd | |
00000d60 20 20 4f 70 65 72 61 6e 64 32 20 20 20 20 20 20 | Operand2 |
00000d70 20 7c 20 20 44 61 74 61 20 70 72 6f 63 65 73 73 | | Data process|
00000d80 69 6e 67 0a 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d |ing.+-------+---|
00000d90 2b 2d 2b 2d 2d 2d 2d 2d 2b 2d 2b 2d 2b 2d 2d 2d |+-+-----+-+-+---|
00000da0 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d |----+-------+---|
*
00000dc0 2d 2d 2d 2d 2b 0a 7c 20 63 6f 6e 64 20 20 7c 30 |----+.| cond |0|
00000dd0 20 30 20 30 20 30 20 30 20 30 7c 61 7c 73 7c 20 | 0 0 0 0 0|a|s| |
00000de0 20 20 52 64 20 20 7c 20 20 20 52 6e 20 20 7c 20 | Rd | Rn | |
00000df0 20 20 52 73 20 20 7c 31 20 30 20 30 20 31 7c 20 | Rs |1 0 0 1| |
00000e00 20 20 52 6d 20 20 7c 20 20 4d 75 6c 74 69 70 6c | Rm | Multipl|
00000e10 79 0a 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d |y.+-------+-----|
00000e20 2d 2d 2b 2d 2d 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d |--+---+-+-------|
00000e30 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d |--+-------+-----|
*
00000e50 2d 2d 2b 0a 7c 20 63 6f 6e 64 20 20 7c 30 20 30 |--+.| cond |0 0|
00000e60 20 30 20 31 7c 78 20 78 20 78 20 78 20 78 20 78 | 0 1|x x x x x x|
00000e70 20 78 20 78 20 78 20 78 20 78 20 78 20 78 20 78 | x x x x x x x x|
00000e80 20 78 20 78 20 31 20 78 20 78 20 31 20 78 20 78 | x x 1 x x 1 x x|
00000e90 20 78 20 78 7c 20 20 55 6e 64 65 66 69 6e 65 64 | x x| Undefined|
00000ea0 0a 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2b 2d 2b |.+-------+---+-+|
00000eb0 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d |-+-+-+-+-+------|
00000ec0 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d |-+-------+------|
00000ed0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000ee0 2d 2b 0a 7c 20 63 6f 6e 64 20 20 7c 30 20 31 7c |-+.| cond |0 1||
00000ef0 69 7c 50 7c 55 7c 42 7c 57 7c 4c 7c 20 20 20 52 |i|P|U|B|W|L| R|
00000f00 6e 20 20 7c 20 20 20 52 64 20 20 7c 20 20 20 20 |n | Rd | |
00000f10 20 20 20 20 20 4f 66 66 73 65 74 20 20 20 20 20 | Offset |
00000f20 20 20 20 7c 20 20 4c 44 52 20 2f 20 53 54 52 0a | | LDR / STR.|
00000f30 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2b 2d 2b 2d |+-------+---+-+-|
00000f40 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d |+-+-+-+-+-------|
00000f50 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d |+-------+-------|
00000f60 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000f70 2b 0a 7c 20 63 6f 6e 64 20 20 7c 30 20 31 20 31 |+.| cond |0 1 1|
00000f80 7c 78 20 78 20 78 20 78 20 78 20 78 20 78 20 78 ||x x x x x x x x|
00000f90 20 78 20 78 20 78 20 78 20 78 20 78 20 78 20 78 | x x x x x x x x|
00000fa0 20 78 20 78 20 78 20 78 20 31 20 78 20 78 20 78 | x x x x 1 x x x|
00000fb0 20 78 7c 20 20 55 6e 64 65 66 69 6e 65 64 0a 2b | x| Undefined.+|
00000fc0 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d 2b |-------+-----+-+|
00000fd0 2d 2b 2d 2b 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b |-+-+-+-+-------+|
00000fe0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00000ff0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2b |---------------+|
00001000 0a 7c 20 63 6f 6e 64 20 20 7c 31 20 30 20 30 7c |.| cond |1 0 0||
00001010 50 7c 55 7c 53 7c 57 7c 4c 7c 20 20 20 52 6e 20 |P|U|S|W|L| Rn |
00001020 20 7c 20 20 20 20 20 20 20 20 20 52 65 67 69 73 | | Regis|
00001030 74 65 72 20 6c 69 73 74 20 20 20 20 20 20 20 20 |ter list |
00001040 20 7c 20 20 4c 44 4d 20 2f 20 53 54 4d 0a 2b 2d | | LDM / STM.+-|
00001050 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d 2b 2d |------+-----+-+-|
00001060 2b 2d 2b 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d |+-+-+-+-------+-|
00001070 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
00001080 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2b 0a |--------------+.|
00001090 7c 20 63 6f 6e 64 20 20 7c 31 20 30 20 31 7c 4c || cond |1 0 1|L|
000010a0 7c 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 || |
000010b0 20 20 77 6f 72 64 20 6f 66 66 73 65 74 20 20 20 | word offset |
000010c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000010d0 7c 20 20 42 72 61 6e 63 68 0a 2b 2d 2d 2d 2d 2d || Branch.+-----|
000010e0 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d 2b 2d 2b 2d 2b 2d |--+-----+-+-+-+-|
000010f0 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d |+-+-------+-----|
00001100 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d |--+-------+-----|
00001110 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2b 0a 7c 20 63 6f |----------+.| co|
00001120 6e 64 20 20 7c 31 20 31 20 30 7c 50 7c 55 7c 4e |nd |1 1 0|P|U|N|
00001130 7c 57 7c 4c 7c 20 20 20 52 6e 20 20 7c 20 20 43 ||W|L| Rn | C|
00001140 52 64 20 20 7c 20 20 43 70 23 20 20 7c 20 20 20 |Rd | Cp# | |
00001150 20 20 4f 66 66 73 65 74 20 20 20 20 7c 20 20 43 | Offset | C|
00001160 6f 70 72 6f 63 20 44 61 74 61 20 54 72 61 6e 73 |oproc Data Trans|
00001170 66 65 72 0a 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d |fer.+-------+---|
00001180 2d 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2b 2d 2d 2d |--+-+-+-+-+-+---|
00001190 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d |----+-------+---|
000011a0 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d 2b 2d 2d 2d |----+-----+-+---|
000011b0 2d 2d 2d 2d 2b 0a 7c 20 63 6f 6e 64 20 20 7c 31 |----+.| cond |1|
000011c0 20 31 20 31 20 30 7c 20 4f 70 63 6f 64 20 7c 20 | 1 1 0| Opcod | |
000011d0 20 43 52 6e 20 20 7c 20 20 43 52 64 20 20 7c 20 | CRn | CRd | |
000011e0 20 43 70 23 20 20 7c 20 20 43 50 20 7c 30 7c 20 | Cp# | CP |0| |
000011f0 20 43 52 6d 20 20 7c 20 20 43 6f 70 72 6f 63 20 | CRm | Coproc |
00001200 44 61 74 61 20 6f 70 0a 2b 2d 2d 2d 2d 2d 2d 2d |Data op.+-------|
00001210 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d |+-------+-----+-|
00001220 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d |+-------+-------|
00001230 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2b 2d |+-------+-----+-|
00001240 2b 2d 2d 2d 2d 2d 2d 2d 2b 0a 7c 20 63 6f 6e 64 |+-------+.| cond|
00001250 20 20 7c 31 20 31 20 31 20 30 7c 4f 70 63 6f 64 | |1 1 1 0|Opcod|
00001260 7c 4c 7c 20 20 43 52 6e 20 20 7c 20 20 20 52 64 ||L| CRn | Rd|
00001270 20 20 7c 20 20 43 70 23 20 20 7c 20 20 43 50 20 | | Cp# | CP |
00001280 7c 31 7c 20 20 43 52 6d 20 20 7c 20 20 43 6f 70 ||1| CRm | Cop|
00001290 72 6f 63 20 52 65 67 54 72 61 6e 73 0a 2b 2d 2d |roc RegTrans.+--|
000012a0 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d |-----+-------+--|
000012b0 2d 2d 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d |---+-+-------+--|
000012c0 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 2d 2d |-----+-------+--|
000012d0 2d 2d 2d 2b 2d 2b 2d 2d 2d 2d 2d 2d 2d 2b 0a 7c |---+-+-------+.||
000012e0 20 63 6f 6e 64 20 20 7c 31 20 31 20 31 20 31 7c | cond |1 1 1 1||
000012f0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001300 20 20 20 73 77 69 20 6e 75 6d 62 65 72 20 20 20 | swi number |
00001310 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 7c | ||
00001320 20 20 53 57 49 0a 20 2d 2d 2d 2d 2d 2d 2d 2b 2d | SWI. -------+-|
00001330 2d 2d 2d 2d 2d 2d 2b 2d 2d 2d 2d 2d 2d 2d 2d 2d |------+---------|
00001340 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------|
*
00001360 2d 2d 2d 2d 2d 2d 0a 20 33 20 33 20 32 20 32 20 |------. 3 3 2 2 |
00001370 32 20 32 20 32 20 32 20 32 20 32 20 32 20 32 20 |2 2 2 2 2 2 2 2 |
00001380 31 20 31 20 31 20 31 20 31 20 31 20 31 20 31 20 |1 1 1 1 1 1 1 1 |
00001390 31 20 31 0a 20 31 20 30 20 39 20 38 20 37 20 36 |1 1. 1 0 9 8 7 6|
000013a0 20 35 20 34 20 33 20 32 20 31 20 30 20 39 20 38 | 5 4 3 2 1 0 9 8|
000013b0 20 37 20 36 20 35 20 34 20 33 20 32 20 31 20 30 | 7 6 5 4 3 2 1 0|
000013c0 20 39 20 38 20 37 20 36 20 35 20 34 20 33 20 32 | 9 8 7 6 5 4 3 2|
000013d0 20 31 20 30 0a 23 66 3b 20 77 72 61 70 20 6f 6e | 1 0.#f; wrap on|
000013e0 
.