diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-08-09 22:47:46 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-08-09 22:47:46 +0200 |
| commit | 3472f91129a7a594b356f9a22af2a8176f6e4b1c (patch) | |
| tree | 9336e47fd8ac9a5f6a2127233e4ecc5b38dc8db9 /sys/src/cmd/5a | |
| parent | daa15d1edbcab0aeae1f5c2a00a6e042e678cfb3 (diff) | |
5a: reject MOVM instruction with .S and .W bits both set (aijus idea)
Diffstat (limited to 'sys/src/cmd/5a')
| -rw-r--r-- | sys/src/cmd/5a/lex.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/src/cmd/5a/lex.c b/sys/src/cmd/5a/lex.c index e052ce284..89ff6661c 100644 --- a/sys/src/cmd/5a/lex.c +++ b/sys/src/cmd/5a/lex.c @@ -563,6 +563,13 @@ outcode(int a, int scond, Gen *g1, int reg, Gen *g2) scond = (scond & ~0xf) | Always; } + if(a == AMOVM){ + if((scond & (C_SBIT|C_WBIT)) == (C_SBIT|C_WBIT)){ + yyerror("MOVM .S and .W are exclusive"); + errorexit(); + } + } + if(pass == 1) goto out; jackpot: |