diff options
Diffstat (limited to 'alee.cpp')
| -rw-r--r-- | alee.cpp | 57 |
1 files changed, 56 insertions, 1 deletions
@@ -16,7 +16,7 @@ * along with this program. If not, see <https://www.gnu.org/licenses/>. */ -#include "alee.hpp" +#include "libalee/alee.hpp" #include "memdict.hpp" #include <charconv> @@ -24,6 +24,13 @@ #include <iostream> #include <vector> +#ifdef ALEE_MSP430 +#include "lzss.h" +static const +#include "msp430fr2476_all.h" +static Error findword(State&, Word); +#endif // ALEE_MSP430 + static bool okay = false; static void readchar(State&); @@ -34,6 +41,9 @@ int main(int argc, char *argv[]) { MemDict dict; State state (dict, readchar); +#ifdef ALEE_MSP430 + Parser::customParse = findword; +#endif // ALEE_MSP430 dict.initialize(); @@ -153,3 +163,48 @@ void parseFile(State& state, std::istream& file) } } +#ifdef ALEE_MSP430 +#define LZSS_MAGIC_SEPARATOR (0xFB) + +static char lzword[32]; +static int lzwlen; +static char lzbuf[32]; +static char *lzptr; + +Error findword(State& state, Word word) +{ + char *ptr = lzword; + for (auto it = word.begin(&state.dict); it != word.end(&state.dict); ++it) { + *ptr = *it; + if (islower(*ptr)) + *ptr -= 32; + ++ptr; + } + lzwlen = (int)(ptr - lzword); + + lzptr = lzbuf; + lzssinit(msp430fr2476_all_lzss, msp430fr2476_all_lzss_len); + + auto ret = decode([](int c) { + if (c != LZSS_MAGIC_SEPARATOR) { + *lzptr++ = (char)c; + } else { + if (lzwlen == lzptr - lzbuf - 2 && std::equal(lzbuf, lzptr - 2, lzword)) { + lzwlen = (*(lzptr - 2) << 8) | *(lzptr - 1); + return 1; + } else { + lzptr = lzbuf; + } + } + return 0; + }); + + if (ret == EOF) { + return Error::noword; + } else { + Parser::processLiteral(state, (Cell)lzwlen); + return Error::none; + } +} +#endif // ALEE_MSP430 + |