This is autotool to generate Assembler.
$cd build
$make as
$cd build
$make clean
TODO
- s1: string without quota
- s2: string with quota
- int: positive integer
- ...: zero or multiple replications of previous kind of statement
- switch:
(switch s1
(s1 s2)
...
)
- sequence of statements at same level doesn't matter
- {a/b}: a or b
- []: can be empty
- a full description should be:
(
//type definition
(type
//type name
(s1
//width of this type
(width int)
//this type is signed or not
(flag {signed/unsigned} )
)
...
)
//stage definition
(stage
//this info not used yet
(s1 {true/false})
...
)
//enum definition
(enum
//name value value ... (value can be a pair or just a single value)
(s1 { (s2 s2 int)/(s2 s2) / s2 } ...)
...
)
//simple variable definition
//variable name
(s1
(value int)
)
...
//memory definition
(memory
//name
(s1
(size {s1/int})
(type s1)
(index s1)
[(read s1 ...)]
[(write s1 ...)]
)
...
)
//wire definition
(wire
(s1
(width {s1/int})
)
...
)
//pipeline definition
(pipeline
//pipeline name
(s1
(width {s1/int})
)
...
)
//register definition
(register
//register name
(s1
(size {s1/int})
(type s1)
(index s1)
)
...
)
//function unit definition
(function_unit
//function unit name
(s1)
...
)
//instruction
(instruction
//name of top rule
(top s1)
//rule name
(s1
//variable definition
(= s1 s1 ...)//make sure every definition show in code and binary exactly once
...
//code definition
(code [{s1/s2} ...])
//binary definition
(binary [{s1/s2/swtich} ...])
//do definition
(do )
)
...
)
)