STMicroelectronics ST10 Series, Руководство по программированию

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ST10 FAMILY PROGRAMMING MANUAL
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MAC Flags
Addressing Modes
Examples
N Z C SV E SL
* * * * * *
N Set if the most significant bit of the result is set. Cleared otherwise.
Z Set if the result equals zero. Cleared otherwise.
C Set if a carry or borrow is generated. Cleared otherwise.
SV Set if an arithmetic overflow occurred. Not affected otherwise.
E Set if the MAE is used. Cleared otherwise.
SL Set if the contents of the ACC is automatically saturated. Not affected otherwise.
Mnemonic Rep Format Bytes
CoMAC Rw
n
, Rw
m
No A3 nm D0 00 4
CoMAC- Rw
n
, Rw
m
No A3 nm E0 00 4
CoMAC Rw
n
, Rw
m
, rnd No A3 nm D1 00 4
CoMACR Rw
n
, Rw
m
No A3 nm F0 00 4
CoMACR Rw
n
, Rw
m
, rnd No A3 nm F1 00 4
CoMAC [IDX
i
⊗
], [Rw
m
⊗
] Yes 93 Xm D0 rrrr:rqqq 4
CoMAC- [IDX
i
⊗
], [Rw
m
⊗
] Yes 93 Xm E0 rrrr:rqqq 4
CoMAC [IDX
i
⊗
], [Rw
m
⊗
], rnd Yes 93 Xm D1 rrrr:rqqq 4
CoMACR [IDX
i
⊗
], [Rw
m
⊗
] Yes 93 Xm F0 rrrr:rqqq 4
CoMACR [IDX
i
⊗
], [Rw
m
⊗
], rnd Yes 93 Xm F1 rrrr:rqqq 4
CoMAC Rw
n
, [Rw
m
⊗
] Yes 83 nm D0 rrrr:rqqq 4
CoMAC- Rw
n
, [Rw
m
⊗
] Yes 83 nm E0 rrrr:rqqq 4
CoMAC Rw
n
, [Rw
m
⊗
], rnd Yes 83 nm D1rrrr:rqqq 4
CoMACR Rw
n
, [Rw
m
⊗
] Yes 83 nm F0 rrrr:rqqq 4
CoMACR Rw
n
, [Rw
m
⊗
], rnd Yes 83 nm F1 rrrr:rqqq 4
CoMAC R3, R4, rnd ; (ACC) <-- (ACC) + (R3)*(R4) + rnd
CoMAC- R2, [R6+] ; (ACC) <-- (ACC) - (R2)*((R6))
; (R6) <-- (R6) + 2
CoMAC [IDX0+QX0], [R11+QR0] ; (ACC) <-- (ACC) + ((IDX0))*((R11))
; (R11) <-- (R11) + (QR0)
; (IDX0) <-- (IDX0) + (QX0)
Repeat 3 times CoMAC
CoMAC [IDX1 - QX1], [R9+QR1] ; (ACC) <-- (ACC) + ((IDX1))*((R9))
; (R9) <-- (R9) + (QR1)
; (IDX1) <-- (IDX1) - (QX1)
Repeat MRW times CoMAC
CoMAC - R3, [R7 - QR0] ; (ACC) <-- (ACC) - (R3)*((R7))
; (R7) <-- (R7) - (QR0)
CoMACR [IDX1], [R4+], rnd ; (ACC) <-- ((IDX1))*((R4)) - (ACC) + rnd
; (R4) <-- (R4) + 2