GMS30C2216 查看數據表（PDF） - Hynix Semiconductor

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GMS30C2216

16/32 BIT RISC/DSP

Hynix Semiconductor 

0-4

CHAPTER 0

Instruction Cache:

• An on-chip instruction cache reduces instruction memory access substantially

Instructions General:

• Variable-length instructions of one, two or three halfwords halve required memory

bandwidth

• Pipeline depth of only two stages, assures immediate refill after branches

• Register instructions of type "source operator destination ⇒ destination" or

"source operator immediate ⇒ destination"

• All register bits participate in an operation

• Immediate operands of 5, 16 and 32 bits, zero- or sign-expanded

• Large address displacement of up to 28 bits

• Two sets of signed arithmetical instructions: instructions set or clear either only the

overflow flag or trap additionally to a Range Error routine on overflow

• DSP instructions operate on 16-bit integer, real and complex fixed-point data and 32-bit

integer data into 32-bit and 64-bit hardware accumulators

Instruction Summary:

• Memory instructions pipelined to a depth of two stages, trap on address register equal to

zero (check for invalid pointers)

• Memory address modes: register address, register postincrement, register + displacement

(including PC relative), register postincrement by displacement (next address), absolute,

stack address, I/O absolute and I/O displacement

• Load, all data types, bytes and halfwords right adjusted and zero- or sign-expanded,

execution proceeds after Load until data is needed

• Store, all data types, trap when range of signed byte or halfword is exceeded

• Move, Move immediate, Move double-word

• Logical instructions AND, AND not, OR, XOR, NOT, AND not immediate, OR

immediate, XOR immediate

• Mask source and immediate ⇒ destination

• Add unsigned/signed, Add signed with trap on overflow, Add with carry

• Add unsigned/signed immediate, Add signed immediate with trap on overflow

• Sum source + immediate ⇒ destination, unsigned/signed and signed with trap on

overflow

• Subtract unsigned/signed, Subtract signed with trap on overflow, Subtract with carry

• Negate unsigned/signed, Negate signed with trap on overflow

• Multiply word * word ⇒ low-order word unsigned or signed, Multiply word * word ⇒

double-word unsigned and signed

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