Propeller Manual
Table Of Contents
- Preface
- Chapter 1 : Introducing the Propeller Chip
- Concept
- Package Types
- Pin Descriptions
- Specifications
- Hardware Connections
- Boot Up Procedure
- Run-Time Procedure
- Shutdown Procedure
- Block Diagram
- Shared Resources
- System Clock
- Cogs (processors)
- Hub
- I/O Pins
- System Counter
- CLK Register
- Locks
- Main Memory
- Main RAM
- Main ROM
- Character Definitions
- Log and Anti-Log Tables
- Sine Table
- Boot Loader and Spin Interpreter
- Chapter 2 : Spin Language Reference
- Structure of Propeller Objects/Spin
- Categorical Listing of Propeller Spin Language
- Spin Language Elements
- ABORT
- BYTE
- BYTEFILL
- BYTEMOVE
- CASE
- CHIPVER
- CLKFREQ
- _CLKFREQ
- CLKMODE
- _CLKMODE
- CLKSET
- CNT
- COGID
- COGINIT
- COGNEW
- COGSTOP
- CON
- CONSTANT
- Constants (pre-defined)
- CTRA, CTRB
- DAT
- DIRA, DIRB
- FILE
- FLOAT
- _FREE
- FRQA, FRQB
- IF
- IFNOT
- INA, INB
- LOCKCLR
- LOCKNEW
- LOCKRET
- LOCKSET
- LONG
- LONGFILL
- LONGMOVE
- LOOKDOWN, LOOKDOWNZ
- LOOKUP, LOOKUPZ
- NEXT
- OBJ
- Operators
- Expression Workspace
- Operator Attributes
- Unary / Binary
- Normal / Assignment
- Constant and/or Variable Expression
- Level of Precedence
- Intermediate Assignments
- Constant Assignment ‘=’
- Variable Assignment ‘:=’
- Add ‘+’, ‘+=’
- Positive ‘+’ (unary form of Add)
- Subtract ‘-’, ‘-=’
- Negate ‘-’ (unary form of Subtract)
- Decrement, pre- or post- ‘- -’
- Increment, pre- or post- ‘+ +’
- Multiply, Return Low ‘*’, ‘*=’
- Multiply, Return High ‘**’, ‘**=’
- Divide ‘/’, ‘/=’
- Modulus ‘//’, ‘//=’
- Limit Minimum ‘#>’, ‘#>=’
- Limit Maximum ‘<#’, ‘<#=’
- Square Root ‘^^’
- Absolute Value ‘||’
- Sign-Extend 7 or Post-Clear ‘~’
- Sign-Extend 15 or Post-Set ‘~~’
- Shift Arithmetic Right ‘~>’, ‘~>=’
- Random ‘?’
- Bitwise Decode ‘|<’
- Bitwise Encode ‘>|’
- Bitwise Shift Left ‘<<’, ‘<<=’
- Bitwise Shift Right ‘>>’, ‘>>=’
- Bitwise Rotate Left ‘<-’, ‘<-=’
- Bitwise Rotate Right ‘->’, ‘->=’
- Bitwise Reverse ‘><’, ‘><=’
- Bitwise AND ‘&’, ‘&=’
- Bitwise OR ‘|’, ‘|=’
- Bitwise XOR ‘^’, ‘^=’
- Bitwise NOT ‘!’
- Boolean AND ‘AND’, ‘AND=’
- Boolean OR ‘OR’, ‘OR=’
- Boolean NOT ‘NOT’
- Boolean Is Equal ‘==’, ‘===’
- Boolean Is Not Equal ‘<>’, ‘<>=’
- Boolean Is Less Than ‘<’, ‘<=’
- Boolean Is Greater Than ‘>’, ‘>=’
- Boolean Is Equal or Less ‘=<’, ‘=<=’
- Boolean Is Equal or Greater ‘=>’, ‘=>=’
- Symbol Address ‘@’
- Object Address Plus Symbol ‘@@’
- OUTA, OUTB
- PAR
- PHSA, PHSB
- PRI
- PUB
- QUIT
- REBOOT
- REPEAT
- RESULT
- RETURN
- ROUND
- SPR
- _STACK
- STRCOMP
- STRING
- STRSIZE
- Symbols
- TRUNC
- VAR
- VCFG
- VSCL
- WAITCNT
- WAITPEQ
- WAITPNE
- WAITVID
- WORD
- WORDFILL
- WORDMOVE
- _XINFREQ
- Chapter 3 : Assembly Language Reference
- The Structure of Propeller Assembly
- Categorical Listing of Propeller Assembly Language
- Assembly Language Elements
- ABS
- ABSNEG
- ADD
- ADDABS
- ADDS
- ADDSX
- ADDX
- AND
- ANDN
- CALL
- CLKSET
- CMP
- CMPS
- CMPSUB
- CMPSX
- CMPX
- CNT
- COGID
- COGINIT
- COGSTOP
- Conditions ( IF_x )
- CTRA, CTRB
- DIRA, DIRB
- DJNZ
- Effects ( WC, WZ, WR, NR )
- FIT
- FRQA, FRQB
- HUBOP
- IF_x (Conditions)
- INA, INB
- JMP
- JMPRET
- LOCKCLR
- LOCKNEW
- LOCKRET
- LOCKSET
- MAX
- MAXS
- MIN
- MINS
- MOV
- MOVD
- MOVI
- MOVS
- MUXC
- MUXNC
- MUXNZ
- MUXZ
- NEG
- NEGC
- NEGNC
- NEGNZ
- NEGZ
- NOP
- NR
- Operators
- OR
- ORG
- OUTA, OUTB
- PAR
- PHSA, PHSB
- RCL
- RCR
- RDBYTE
- RDLONG
- RDWORD
- Registers
- RES
- RET
- REV
- ROL
- ROR
- SAR
- SHL
- SHR
- SUB
- SUBABS
- SUBS
- SUBSX
- SUBX
- SUMC
- SUMNC
- SUMZ
- Symbols
- TEST
- TESTN
- TJNZ
- TJZ
- VCFG
- VSCL
- WAITCNT
- WAITPEQ
- WAITPNE
- WAITVID
- WC
- WR
- WRBYTE
- WRLONG
- WRWORD
- WZ
- XOR
- Appendix A: Reserved Word List
- Appendix B: Math Samples and Function Tables
- Index
2: Spin Language Reference – PAR
Propeller Manual v1.1 · Page 179
In the example above, the Main method launches the Process assembly routine into a new cog
with
COGNEW. The second parameter of COGNEW is used by Main to pass the address of a
variable,
Shared. The assembly routine, Process, retrieves that address value from its PAR
register and stores it locally in
Mem. Then it performs some task, updating its local ValReg
register (created at the end of the
DAT block) and finally updates the Shared variable via
wrlong ValReg, Mem.
T
In Propeller Assembly, the PAR register is read-only so it should only be accessed as a source
(s-field) value (i.e.,
mov dest, source).