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sweet 16 asm [wip]

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Kelvin Sherlock 2019-03-27 17:02:12 -04:00
parent 91c24bbf8b
commit 237577d886
1 changed files with 54 additions and 0 deletions
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src/debug_sweet16.re2c Normal file
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enum {
none = 0,
reg = 1 << 1,
indir_reg = 1 << 2,
ea = 1 << 3
}
opcode:
/*!re2c
* { error; }
'set' / (ws | eol) { op = 0x10; flags = reg; goto operand; }
'ld' / (ws | eol) { op = 0x20; flags = reg; goto operand; }
'st' / (ws | eol) { op = 0x30; goto operand; }
'ldd' / (ws | eol) { op = 0x60; goto operand; }
'std' / (ws | eol) { op = 0x70; goto operand; }
'pop' / (ws | eol) { op = 0x80; goto operand; }
'stp' / (ws | eol) { op = 0x90; goto operand; }
'add' / (ws | eol) { op = 0xa0; goto operand; }
'sub' / (ws | eol) { op = 0xb0; goto operand; }
'popd' / (ws | eol) { op = 0xc0; goto operand; }
'cpr' / (ws | eol) { op = 0xd0; goto operand; }
'inr' / (ws | eol) { op = 0xe0; goto operand; }
'dcr' / (ws | eol) { op = 0xf0; goto operand; }
'rtn' / (ws | eol) { op = 0x00; goto operand; }
'br' / (ws | eol) { op = 0x01; goto operand; }
'bnc' / (ws | eol) { op = 0x02; goto operand; }
'bc' / (ws | eol) { op = 0x03; goto operand; }
'bp' / (ws | eol) { op = 0x04; goto operand; }
'bm' / (ws | eol) { op = 0x05; goto operand; }
'bz' / (ws | eol) { op = 0x06; goto operand; }
'bnz' / (ws | eol) { op = 0x07; goto operand; }
'bm1' / (ws | eol) { op = 0x08; goto operand; }
'bnm1' / (ws | eol) { op = 0x09; goto operand; }
'bk' / (ws | eol) { op = 0x0a; goto operand; }
'rs' / (ws | eol) { op = 0x0b; goto operand; }
'bs' / (ws | eol) { op = 0x0c; goto operand; }
*/
operand:
/*!re2c
'r' [0-9]+ {
}
'@' 'r' [0-9]+ {
}
'*'
'*' '+' x{1,2}
'*' '-' x{1,2}
x{1,4}
*/