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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-11-19 20:25:29 +0200 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-11-19 20:25:29 +0200 |
| commit | 910ad02d86672cc3020cc5df0fa451ef4dd69bfd (patch) | |
| tree | d5711894ee14c62caee8f8b744cac2d28f92c87b /tasm/src/assembler.c | |
| parent | 51789d2ed69515ab81bee6633bac3d94c519dc03 (diff) | |
| download | tri-910ad02d86672cc3020cc5df0fa451ef4dd69bfd.tar.gz tri-910ad02d86672cc3020cc5df0fa451ef4dd69bfd.zip | |
implement jalr
Diffstat (limited to 'tasm/src/assembler.c')
| -rw-r--r-- | tasm/src/assembler.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tasm/src/assembler.c b/tasm/src/assembler.c index 731a736..ba61045 100644 --- a/tasm/src/assembler.c +++ b/tasm/src/assembler.c @@ -378,9 +378,16 @@ static void fix_reloc_b(struct asm_ctx *ctx, size_t ro, size_t so) ctx->buf[ro] = build_s(OPCODE_BRANCH, hi, fn0, rs1, rs2, lo); } +/* convert instruction index (as used by ctx->idx) to addresses */ +static size_t asm_addr(size_t o) +{ + return o * 3; +} + static void fix_reloc_j(struct asm_ctx *ctx, size_t ro, size_t so) { - int64_t off = so - ctx->idx; + /* internal offsets are instruction indexes, so convert to address */ + int64_t off = asm_addr(so) - asm_addr(ro); tri_t t = tri_from(off); if (tri_mask(t, 18) != t) { fprintf(stderr, "jump offset at %llu too large\n", |