s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 109

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

S3C2410A
ASSEMBLER SYNTAX
EXAMPLES
UMULL{cond}{S} RdLo,RdHi,Rm,Rs
UMLAL{cond}{S} RdLo,RdHi,Rm,Rs
SMULL{cond}{S} RdLo,RdHi,Rm,Rs
SMLAL{cond}{S} RdLo,RdHi,Rm,Rs
where:
{cond}
{S}
RdLo, RdHi, Rm, Rs
UMULL
UMLALS
Mnemonic
R1,R4,R2,R3
R1,R5,R2,R3
Two-character condition mnemonic. See Table 3-2.
Set condition codes if S present
Expressions evaluating to a register number other than R15.
Table 3-5. Assembler Syntax Descriptions
Unsigned Multiply Long
Unsigned Multiply & Accumulate Long
Signed Multiply Long
Signed Multiply & Accumulate Long
; R4,R1:=R2*R3
; R5,R1:=R2*R3+R5,R1 also setting condition codes
Description
32 x 32 = 64
32 x 32 + 64 = 64
32 x 32 = 64
32 x 32 + 64 = 64
ARM INSTRUCTION SET
Purpose
3-27