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Figure3.31 load/store instruction, Load/store instruction – Avago Technologies LSI53C1010 User Manual

Page 120

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3-80

The SCSI SCRIPTS Processor Instruction Set

LOAD instruction. The data will be stored to the SCRATCHA register;
one, two, three, or four bytes may be stored.

The bottom portion of the illustration shows the second 32-bit word of the
instruction, defined by the

command_buffer.

The Block Move instruction

begins transferring data from this address. It is loaded into the DSPS
register.

Figure 3.31 Load/Store Instruction

NASM

Output

Binary

Instruction

Format

1

1 0 0 0 1

0 0 1 1 0 1 0

0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0

1

0

0

DCMD Register

DBC Register

E2340004

00FFFE54

SCSI SCRIPTS

Source Code

STORE NoFlush SCRATCHA0,4, 0xFFFE54

0

0 0 0 0 0

1 1 1 1 1 1 1

1 1 1 1 1 1 1 0 0 1 0 1 0 1 0 0

0

0

1

DSPS Register

Binary

Instruction

Format

0 0FFFE54

(command_buffer)

NASM

Output

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