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Implement Double-Number and String word sets, fix memory panics

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Double-Number (19 words): D+ D- DNEGATE DABS D2* D2/ D0= D0< D= D< DU<
  DMAX DMIN D>S M+ M*/ D. D.R 2ROT 2CONSTANT 2VARIABLE 2VALUE 2LITERAL
  Double-number literal parsing (tokens ending with '.')
String (5 words): COMPARE SEARCH /STRING BLANK -TRAILING SLITERAL
Fix all memory access panics with bounds checking throughout host functions.

8 word sets at 100%: Core, Core Ext, Exception, Double, String,
  Search-Order, Memory-Allocation, Programming-Tools
This commit is contained in:
Oleksandr Kozachuk
2026-03-31 14:43:30 +02:00
parent 8bfdd966ea
commit f80c612835
7 changed files with 1590 additions and 165 deletions
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crates/core/src/codegen.rs
+4 -4
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@@ -41,14 +41,14 @@ const TYPE_I32: u32 = 1; // (i32) -> ()
const EMIT_FUNC: u32 = 0;
const WORD_FUNC: u32 = 1;
/// Natural-alignment MemArg for 4-byte i32 operations.
/// Natural-alignment `MemArg` for 4-byte i32 operations.
const MEM4: MemArg = MemArg {
offset: 0,
align: 2, // 2^2 = 4
memory_index: MEMORY_INDEX,
};
/// MemArg for single-byte operations.
/// `MemArg` for single-byte operations.
const MEM1: MemArg = MemArg {
offset: 0,
align: 0, // 2^0 = 1
@@ -81,7 +81,7 @@ pub struct CompiledModule {
// Instruction-level helpers (free functions that take &mut Function)
// ---------------------------------------------------------------------------
/// Decrement `$dsp` by CELL_SIZE.
/// Decrement `$dsp` by `CELL_SIZE`.
fn dsp_dec(f: &mut Function) {
f.instruction(&Instruction::GlobalGet(DSP))
.instruction(&Instruction::I32Const(CELL_SIZE as i32))
@@ -89,7 +89,7 @@ fn dsp_dec(f: &mut Function) {
.instruction(&Instruction::GlobalSet(DSP));
}
/// Increment `$dsp` by CELL_SIZE.
/// Increment `$dsp` by `CELL_SIZE`.
fn dsp_inc(f: &mut Function) {
f.instruction(&Instruction::GlobalGet(DSP))
.instruction(&Instruction::I32Const(CELL_SIZE as i32))