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a4f08f8307
Each ISA's hand-written ENCODING_TABLE (the single source of truth) now lives in a per-arch tablegen/ metaprogram that flattens it and serializes committed binary blobs; the library #loads those into @(rodata) at compile time rather than compiling a table body. No arch keeps encoding_table.odin or decoding_tables.odin -- only a generated tables.odin loader and tables/*.bin. * Two-stage, type-checked pipeline: tablegen Stage A emits human-readable generated Odin, which compiles and serializes the blobs in Stage B. * encode() goes through encoding_forms(m); decoders are unchanged apart from x86's flattened 2-D index. Decode tables are byte-identical to the old ones. * build.lua: a LuaJIT driver for the metaprograms, validations, and tests, with cross-platform gating and a clear report. * Docs refreshed; the obsolete forward-looking plan in cross_arch_design.md trimmed to what was actually built. * Attribution headers added to all rexcode source files; the generators emit them so generated files keep them.
57 lines
1.6 KiB
Odin
57 lines
1.6 KiB
Odin
// rexcode · Brendan Punsky (dotbmp@github), original author
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package rexcode_ppc_tests
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import "core:fmt"
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import "core:os"
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import p ".."
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ok_count, fail_count: int
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@(private="file")
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check :: proc(name: string, mn: p.Mnemonic, idx: int, want_bits, want_mask: u32) {
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_run := p.ENCODE_RUNS[u16(mn)]
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enc := p.ENCODE_FORMS[_run.start:][:_run.count]
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if idx >= len(enc) {
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fmt.printf(" [FAIL] %s: entry %d not present (have %d)\n", name, idx, len(enc))
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fail_count += 1
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return
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}
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e := enc[idx]
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if e.bits != want_bits || e.mask != want_mask {
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fmt.printf(" [FAIL] %-22s got bits=%08x mask=%08x want bits=%08x mask=%08x\n",
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name, e.bits, e.mask, want_bits, want_mask)
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fail_count += 1
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return
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}
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fmt.printf(" [ok] %-22s %08x / %08x (mode=%v feat=%v)\n",
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name, e.bits, e.mask, e.mode, e.feature)
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ok_count += 1
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}
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run_smoke :: proc() {
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fmt.println("==== ppc ENCODING_TABLE smoke test ====")
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// ---- Branch ----
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check("B", .B, 0, 0x48000000, 0xFC000003)
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check("BL", .BL, 0, 0x48000001, 0xFC000003)
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check("BA", .BA, 0, 0x48000002, 0xFC000003)
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check("BLA", .BLA, 0, 0x48000003, 0xFC000003)
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check("BC", .BC, 0, 0x40000000, 0xFC000003)
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check("BCLR", .BCLR, 0, 0x4C000020, 0xFC0007FF)
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check("BCCTR", .BCCTR,0, 0x4C000420, 0xFC0007FF)
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check("SC", .SC, 0, 0x44000002, 0xFFFFFFFD)
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fmt.printf("\n==> ppc table: %d passed, %d failed\n", ok_count, fail_count)
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if fail_count > 0 { os.exit(1) }
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}
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main :: proc() {
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run_decode_sweep()
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run_full_sweep()
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run_printer()
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run_roundtrip()
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run_smoke()
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run_branch_reloc()
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}
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