STMicroelectronics ST10 Series Programming Manual page 171

Addressing Modes
Mnemonic
CoSUB Rw , Rw
n
CoSUBR Rw , Rw
n
CoSUB2 Rw , Rw
n
CoSUB2R Rw , Rw
n
CoSUB [IDX
CoSUBR [IDX
CoSUB2 [IDX
CoSUB2R [IDX
CoSUB Rw , [Rw
n
CoSUBR Rw , [Rw
n
CoSUB2 Rw , [Rw
n
CoSUB2R Rw , [Rw
n
Examples
CoSUB
CoSUB2
Repeat 3 times
CoSUB
Repeat MRW times CoSUB2R
CoSUB2R
Subtraction Examples
Instr. MS op 1
CoSUB x 183A
CoSUBR x 183A
CoSUB2 x 0C1D
CoSUB2R x 0C1D
CoSUB 0 FFFF
1
CoSUB2 0 0000
CoSUB2 0 0001
1
m
m
m
m
⊗], [Rw ⊗]
i m
⊗], [Rw ⊗]
i m
⊗], [Rw ⊗]
i m
⊗], [Rw ⊗]
i m
⊗]
m
⊗]
m
⊗]
m
⊗]
m
R0, R1
R2, [R6+]
CoSUB
[IDX1+QX1], [R10+QR0] ; (ACC) <-- (ACC) - ( ((R10))\((IDX1)) )
R4, [R8 - QR1]
op 2 ACC (before)
72AC 00 7FFF FFFF
h h
72AC 00 7FFF FFFF
h h
3956 00 E604 5564
h h
3956 00 E604 5564
h h
FFFF 7F FFFF FFFF
h h
3000 7F FFFF FFFF
h h
0000 80 0000 0000
h h
ST10 FAMILY PROGRAMMING MANUAL
Rep Format
No A3 nm 0A 00
No A3 nm 12 00
No A3 nm 4A 00
No A3 nm 52 00
Yes 93 Xm 0A rrrr:rqqq
Yes 93 Xm 12 rrrr:rqqq
Yes 93 Xm 4A rrrr:rqqq
Yes 93 Xm 52 rrrr:rqqq
Yes 83 nm 0A rrrr:rqqq
Yes 83 nm 12 rrrr:rqqq
Yes 83 nm 4A rrrr:rqqq
Yes 83 nm 52 rrrr:rqqq
; (ACC) <-- (ACC) - (R1)\(R0)
; (ACC) <-- (ACC) - 2*( ((R6)) \ (R2) )
; (R6) <-- (R6) + 2
; (R10) <-- (R10) + (QR0)
; (IDX1) <-- (IDX1) + (QX1)
; (ACC) <-- 2*( ((R8))\(R4) ) - (ACC)
; (R8) <-- (R8) - (QR1)
ACC (after)
00 0D53 E7C5
h h
FF F2AC 183B
h h
00 7358 3D2A
h h
FF 8CA7 C2D6
h h
80 0000 0000
h h
00 7FFF FFFF
h
7F 9FFF FFFF
h h
7F FFFF FFFE
h h
FF 8000 0000
h
Bytes
4
4
4
4
4
4
4
4
4
4
4
4
N Z C SV E
0 0 0 - 0
1 0 1 - 0
0 0 0 - 0
1 0 1 - 0
1 0 1 1 1
0 0 1 1 0
0 0 0 - 1
0 0 0 1 1
1 0 0 1 0
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SL
-
-
-
-
-
1
-
-
1