diff options
Diffstat (limited to 'src/c8asm/assembler.c')
| -rw-r--r-- | src/c8asm/assembler.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/src/c8asm/assembler.c b/src/c8asm/assembler.c index ffa9025..daafc11 100644 --- a/src/c8asm/assembler.c +++ b/src/c8asm/assembler.c @@ -77,23 +77,21 @@ assemble(FILE *stream, struct ast ast) bool pad = false; da_foreach (&ast, node) { + assume(node->kind == D_LABEL || node->kind == D_INSTR); if (node->kind == D_LABEL) { struct label lbl = { .addr = i, .sv = node->name, }; pushlabel(node->name.p[0] == '.' ? &locals : &globals, lbl); - } else if (node->kind == D_INSTR) + } else i += node->instr.kind == I_DB ? node->instr.len : 2; - else - unreachable(); } da_foreach (&ast, node) { if (node->kind == D_LABEL) continue; - if (node->kind != D_INSTR) - unreachable(); + assume(node->kind == D_INSTR); /* Instructions need to be 0-padded so they appear on an even byte boundary. */ @@ -229,8 +227,6 @@ assemble(FILE *stream, struct ast ast) PUT(0x8003 | (node->instr.args[0].val << 8) | node->instr.args[1].val << 4); break; - default: - unreachable(); } } |