add cppcheck and test targets; some code size reductions

Makefile

@@ -9,10 +9,10 @@ LIBFILE := libalee/libalee.a
 all: alee
 
 msp430: CXX := msp430-elf32-g++
-msp430: AR := msp430-elf32-ar
+msp430: AR := msp430-elf32-gcc-ar
 msp430: CXXFLAGS += -Os -mmcu=msp430g2553 -ffunction-sections -fdata-sections
-msp430: CXXFLAGS += -DMEMDICTSIZE=200
-msp430: LDFLAGS += -L/opt/msp430-elf32/include -Wl,-gc-sections
+msp430: CXXFLAGS += -DMEMDICTSIZE=200 -flto
+msp430: LDFLAGS += -L/opt/msp430-elf32/include -Tmsp430g2553.ld -Wl,-gc-sections
 msp430: clean-lib alee-msp430
 
 small: CXXFLAGS += -Os
@@ -27,8 +27,15 @@ alee: $(LIBFILE)
 alee-msp430: $(LIBFILE)
 alee-standalone: $(LIBFILE)
 
+cppcheck:
+	cppcheck --enable=warning,style,information --disable=missingInclude \
+             libalee alee*.cpp *dict.hpp
+
+test: standalone
+	echo "\nbye\n" | ./alee-standalone test/tester.fr test/core.fr
+
 $(LIBFILE): $(OBJFILES)
-	$(AR) cr $@ $(OBJFILES)
+	$(AR) crs $@ $(OBJFILES)
 
 core.fth.h: alee.dat
 	xxd -i $< > $@
@@ -44,5 +51,5 @@ clean: clean-lib
 clean-lib:
 	rm -f $(LIBFILE) $(OBJFILES)
 
-.PHONY: all msp430 small fast standalone clean clean-lib
+.PHONY: all clean clean-lib cppcheck fast msp430 small standalone test
 

alee-msp430.cpp

@@ -19,6 +19,7 @@
 #include "alee.hpp"
 #include "splitmemdict.hpp"
 
+#include <cctype>
 #include <msp430.h>
 
 #include "core.fth.h"
@@ -95,16 +96,14 @@ int main()
 
 static void readchar(State& state)
 {
-    auto len = state.dict.read(Dictionary::Input);
-    Addr addr = Dictionary::Input + sizeof(Cell) +
-                Dictionary::InputCells - len - 1;
-
-    for (Cell i = 0; i < len; ++i, ++addr)
-        state.dict.writebyte(addr, state.dict.readbyte(addr + 1));
+    auto idx = state.dict.read(Dictionary::Input);
+    Addr addr = Dictionary::Input + sizeof(Cell) + idx;
 
     while (!(IFG2 & UCA0RXIFG));
-    state.dict.writebyte(addr, UCA0RXBUF);
-    state.dict.write(Dictionary::Input, len + 1);
+    auto c = UCA0RXBUF;
+    if (isupper(c))
+        c += 32;
+    state.dict.writebyte(addr, c ? c : ' ');
 }
 
 void serput(int c)

libalee/dictionary.cpp

@@ -95,38 +95,33 @@ Addr Dictionary::getexec(Addr addr) noexcept
 
 Word Dictionary::input() noexcept
 {
-    auto src = read(Dictionary::Source);
-    auto end = read(Dictionary::SourceLen);
+    const auto src = read(Dictionary::Source);
+    const auto end = read(Dictionary::SourceLen);
     auto idx = read(Dictionary::Input);
 
-    Addr wordstart = src + idx;
-    Addr wordend = wordstart;
+    Word word {
+        static_cast<Addr>(src + idx),
+        static_cast<Addr>(src + idx)
+    };
 
     while (idx < end) {
-        auto ch = readbyte(wordend);
-
-        if (ch == '\0')
-            break;
+        auto ch = readbyte(word.end);
 
         if (isspace(ch)) {
-            if (wordstart != wordend) {
-                writebyte(Dictionary::Input, idx + 1);
-                return {wordstart, wordend};
-            }
+            if (word.size() > 0)
+                break;
 
-            ++wordstart;
+            ++word.start;
+        } else if (ch == '\0') {
+            break;
         }
 
-        ++wordend;
+        ++word.end;
         ++idx;
     }
 
-    if (wordstart != wordend) {
     writebyte(Dictionary::Input, idx + 1);
-        return {wordstart, wordend};
-    }
-
-    return {};
+    return word;
 }
 
 bool Dictionary::equal(Word word, const char *str, unsigned len) const noexcept

libalee/parser.cpp

@@ -19,7 +19,7 @@
 #include "corewords.hpp"
 #include "parser.hpp"
 
-#include <charconv>
+#include <cctype>
 #include <cstring>
 
 int Parser::parse(State& state, const char *str)
@@ -79,18 +79,35 @@ int Parser::parseWord(State& state, Word word)
 
 int Parser::parseNumber(State& state, Word word)
 {
-    char buf[MaxCellNumberChars + 1];
-    unsigned i;
-    for (i = 0; i < std::min(MaxCellNumberChars, word.size()); ++i)
-        buf[i] = state.dict.readbyte(word.start + i);
-    buf[i] = '\0';
-
-    auto base = state.dict.read(0);
-    DoubleCell dl;
-    auto [ptr, ec] = std::from_chars(buf, buf + i, dl, base);
-    Cell l = static_cast<Cell>(dl);
-
-    if (ec == std::errc() && ptr == buf + i) {
+    const auto base = state.dict.read(Dictionary::Base);
+    DoubleCell result = 0;
+    auto i = word.start;
+    bool inv;
+    char c;
+
+    c = state.dict.readbyte(i);
+    if (inv = c == '-'; inv)
+        c = state.dict.readbyte(++i);
+
+    do {
+        if (isdigit(c)) {
+            result *= base;
+            result += c - '0';
+        } else if (isalpha(c) && base > 10) {
+            result *= base;
+            result += 10 + (c > 'a' ? c - 'a' : c - 'A');
+        } else {
+            return UnknownWord;
+        }
+
+        if (++i < word.end)
+            c = state.dict.readbyte(i);
+    } while (i < word.end);
+
+    if (inv)
+        result *= -1;
+
+    Cell value = static_cast<Cell>(result);
     if (state.compiling()) {
         auto ins = CoreWords::findi("_lit");
 
@@ -98,15 +115,12 @@ int Parser::parseNumber(State& state, Word word)
         //    state.dict.add(ins | ((l + 1) << 8));
         //} else {
             state.dict.add(ins);
-                state.dict.add(l);
+            state.dict.add(value);
         //}
     } else {
-            state.push(l);
+        state.push(value);
     }
 
     return 0;
-    } else {
-        return UnknownWord;
-    }
 }