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Update README.md
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David Schmenk
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PLASMA/README.md
132
PLASMA/README.md
@ -15,72 +15,72 @@ PLASMA takes an approach that uses the best of all the above implementations to
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The PLASMA low level operations are defined as:
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|OP | Description
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|------|-----------------------------------
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|ZERO | push zero on the stack
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|DROP | drop top stack value
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|DUP | duplicate top stack value
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|OVER | duplicate next from top stack value
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|SWAP | swap two topmost stack values
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|ADD | add top two values, leave result on top
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|SUB | subtract next from top from top, leave result on top
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|MUL | multiply two topmost stack values, leave result on top
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|DIV | divide next from top by top, leave result on top
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|MOD | divide next from top by top, leave remainder on top
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|INCR | increment top of stack
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|DECR | decrement top of stack
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|NEG | negate top of stack
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|COMP | compliment top of stack
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|BAND | bit wise AND top two values, leave result on top
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|IOR | bit wise inclusive OR top two values, leave result on top
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|XOR | bit wise exclusive OR top two values, leave result on top
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|NOT | logical NOT of top of stack
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|LOR | logical OR top two values, leave result on top
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|LAND | logical AND top two values, leave result on top
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|SHL | shift left next from top by top, leave result on top
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|SHR | shift right next from top by top, leave result on top
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|IDXB | add top of stack to next from top, leave result on top
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|IDXW | add 2X top of stack to next from top, leave result on top
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|LAA | load absolute address
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|LLA | load local address from frame offset
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|CB | constant byte
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|CW | constant word
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|LB | load byte from top of stack address
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|LW | load word from top of stack address
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|LLB | load byte from frame offset
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|LLW | load word from frame offset
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|LAB | load byte from absolute address
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|LAW | load word from absolute address
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|SB | store top of stack byte into next from top address
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|SW | store top of stack word into next from top address
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|SLB | store top of stack into local byte at frame offset
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|SLW | store top of stack into local word at frame offset
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|SAB | store top of stack into byte at absolute address
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|SAW | store top of stack into word at absolute address
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|DLB | duplicate top of stack into local byte at frame offset
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|DLW | duplicate top of stack into local word at frame offset
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|DAB | duplicate top of stack into byte at absolute address
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|DAW | duplicate top of stack into word at absolute address
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|BRGT | branch next from top greater than top
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|BRLT | branch next from top less than top
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|BREQ | branch next from top equal to top
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|BRNE | branch next from top not equal to top
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|ISEQ | if next from top is equal to top, set top true
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|ISNE | if next from top is not equal to top, set top true
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|ISGT | if next from top is greater than top, set top true
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|ISLT | if next from top is less than top, set top true
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|ISGE | if next from top is greater than or equal to top, set top true
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|ISLE | if next from top is less than or equal to top, set top true
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|BRFLS | branch if top of stack is zero
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|BRTRU | branch if top of stack is non-zero
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|BRNCH | branch to address
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|CALL | sub routine call with stack parameters
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|ICAL | sub routine call to indirect address on stack top with stack parameters
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|ENTER | allocate frame size and copy stack parameters to local frame
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|LEAVE | deallocate frame and return from sub routine call
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|RET | return from sub routine call
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|PUSH | push top to call stack
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|PULL | pull from call stack
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| OP | Description
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|-------|-----------------------------------
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| ZERO | push zero on the stack
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| DROP | drop top stack value
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| DUP | duplicate top stack value
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| OVER | duplicate next from top stack value
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| SWAP | swap two topmost stack values
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| ADD | add top two values, leave result on top
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| SUB | subtract next from top from top, leave result on top
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| MUL | multiply two topmost stack values, leave result on top
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| DIV | divide next from top by top, leave result on top
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| MOD | divide next from top by top, leave remainder on top
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| INCR | increment top of stack
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| DECR | decrement top of stack
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| NEG | negate top of stack
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| COMP | compliment top of stack
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| BAND | bit wise AND top two values, leave result on top
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| IOR | bit wise inclusive OR top two values, leave result on top
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| XOR | bit wise exclusive OR top two values, leave result on top
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| NOT | logical NOT of top of stack
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| LOR | logical OR top two values, leave result on top
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| LAND | logical AND top two values, leave result on top
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| SHL | shift left next from top by top, leave result on top
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| SHR | shift right next from top by top, leave result on top
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| IDXB | add top of stack to next from top, leave result on top
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| IDXW | add 2X top of stack to next from top, leave result on top
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| LAA | load absolute address
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| LLA | load local address from frame offset
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| CB | constant byte
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| CW | constant word
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| LB | load byte from top of stack address
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| LW | load word from top of stack address
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| LLB | load byte from frame offset
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| LLW | load word from frame offset
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| LAB | load byte from absolute address
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| LAW | load word from absolute address
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| SB | store top of stack byte into next from top address
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| SW | store top of stack word into next from top address
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| SLB | store top of stack into local byte at frame offset
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| SLW | store top of stack into local word at frame offset
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| SAB | store top of stack into byte at absolute address
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| SAW | store top of stack into word at absolute address
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| DLB | duplicate top of stack into local byte at frame offset
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| DLW | duplicate top of stack into local word at frame offset
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| DAB | duplicate top of stack into byte at absolute address
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| DAW | duplicate top of stack into word at absolute address
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| BRGT | branch next from top greater than top
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| BRLT | branch next from top less than top
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| BREQ | branch next from top equal to top
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| BRNE | branch next from top not equal to top
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| ISEQ | if next from top is equal to top, set top true
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| ISNE | if next from top is not equal to top, set top true
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| ISGT | if next from top is greater than top, set top true
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| ISLT | if next from top is less than top, set top true
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| ISGE | if next from top is greater than or equal to top, set top true
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| ISLE | if next from top is less than or equal to top, set top true
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| BRFLS | branch if top of stack is zero
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| BRTRU | branch if top of stack is non-zero
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| BRNCH | branch to address
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| CALL | sub routine call with stack parameters
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| ICAL | sub routine call to indirect address on stack top with stack parameters
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| ENTER | allocate frame size and copy stack parameters to local frame
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| LEAVE | deallocate frame and return from sub routine call
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| RET | return from sub routine call
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| PUSH | push top to call stack
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| PULL | pull from call stack
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##PLASMA Compiler/Assembler
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