PS081 datasheet(118/155 Pages) AMSCO

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6-15

PSØ81

equal

Write 3 Bytes to EEPROM

Syntax:

equal p1

Parameters:

p1 = 24-Bit number

Calculus:

Flags affected:

Bytes:

Cycles:

Description:

Write 3 bytes (p1) to configuration register of EEPROM. The equal opcode is used to

write 3 bytes of configuration data directly to an EEPROM register. Therefore the op-

code is simply used 16 times in the beginning of the assembler listing, fed with the

configuration data given through p1. Like ‚putepr‘ the configuration of the EEPROM is

done in the lower area from byte 0..47, combined in 16x 24bit registers. From byte

48 upwards, the user code is written to the EEPROM. Use this opcode to provide

your own configuration instead of the standard configuration.

Category:

EEPROM access

getepr

Get EEPROM content

Syntax:

getepr p1

Parameters:

p1 = ACCU [x,y,z,r]

Calculus:

p1 := EEPROM register content (addressed by RAM address pointer)

Flags affected:

S Z

Bytes:

Cycles:

Description:

Get EEPROM into register. The addressed register p1 gets the EEPROM register

content which is addressed by the RAM address pointer. This opcode needs tempo-

rarily a place in the program counter stack (explanation see below).

Category:

EEPROM Access

getflag

Set S and Z flags

Syntax:

getflag p1

Parameters:

p1 = ACCU [x,y,z,r]

Calculus:

signum := set if p1 < 0

notequalzero := set if p1 <> 0

Flags affected:

S Z

Bytes:

Cycles:

Description:

Set the signum and notequalzero flag according to the addressed register, content

of the register is not affected

Category:

Simple arithmetic

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