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changeset 552:f9ffd1935cee
Add explicit immediate mode to register list instructions (PSHS, etc.)
There is actual code in the wild that wants to use things like PSHS #0 which
are valid 6809 instructions and actually listed in the literature. So add
the capability to do so.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Fri, 30 Jun 2023 09:40:17 -0600 |
| parents | 4ec5c94ade71 |
| children | 3a173cefc814 |
| files | lwasm/insn_rlist.c |
| diffstat | 1 files changed, 17 insertions(+), 0 deletions(-) [+] |
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--- a/lwasm/insn_rlist.c Sun Apr 23 10:23:43 2023 -0600 +++ b/lwasm/insn_rlist.c Fri Jun 30 09:40:17 2023 -0600 @@ -27,12 +27,23 @@ #include "lwasm.h" #include "instab.h" +PARSEFUNC(insn_parse_imm8); +EMITFUNC(insn_emit_imm8); + PARSEFUNC(insn_parse_rlist) { int rb = 0; int rn; static const char *regs = "CCA B DPX Y U PCD S "; + l -> lint = 0; + if (**p == '#') + { + insn_parse_imm8(as, l, p); + l -> lint = 1; + return; + } + while (**p && !isspace(**p) && **p != ';' && **p != '*') { rn = lwasm_lookupreg2(regs, p); @@ -84,6 +95,12 @@ EMITFUNC(insn_emit_rlist) { + if (l -> lint == 1) + { + insn_emit_imm8(as, l); + return; + } + lwasm_emitop(l, instab[l -> insn].ops[0]); lwasm_emit(l, l -> pb);