diff options
Diffstat (limited to 'utils/tl/thumb.c')
| -rw-r--r-- | utils/tl/thumb.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/utils/tl/thumb.c b/utils/tl/thumb.c index 6473675e..0c568a37 100644 --- a/utils/tl/thumb.c +++ b/utils/tl/thumb.c @@ -1349,10 +1349,16 @@ if(debug['G']) print("%ulx: %s: thumb\n", (ulong)(p->pc), p->from.sym->name); rf = p->from.reg; rt = p->reg; - if (rf != NREG) // VCMP (ARMv7-M ARM, A7.7.223, T1) - o1 |= ((rf & 0x0f)<<16) | ((r & 0x0f)<<28); /* Vm, Vd */ - else // VCMP (ARMv7-M ARM, A7.7.223, T2) compare to 0.0 - o1 |= ((r & 0x0f) << 28) | 0x1; + if(p->from.type == D_FCONST) { + if(p->from.ieee->h != 0 || p->from.ieee->l != 0) + diag("invalid floating-point immediate\n%P", p); + // VCMP (ARMv7-M ARM, A7.7.223, T2) compare to 0.0 + o1 |= 1; + rf = 0; + } + + // VCMP (ARMv7-M ARM, A7.7.223, T1) + o1 |= ((rf & 0x0f)<<16) | ((rt & 0x0f)<<28); /* Vm, Vd */ /* VMRS (ARMv7-M ARM, A7.7.243) with Rt=15 (for flags) */ o3 = 0x0a10eef1 | (15 << 28); @@ -1698,15 +1704,21 @@ thumbopfp(int a, int sc) o |= 0xee00; // Prepare the first half-word in the sequence. + // VCVT opc2 bits are to_int,0,signed + switch(a) { - /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1 */ - case AMOVWF: return o | (0x0a << 24) | (0xc0 << 16) | 0xb8; - /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1 */ - case AMOVFW: return o | (0x0a << 24) | (0xc0 << 16) | 0xbd; - /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1 */ - case AMOVWD: return o | (0x0b << 24) | (0xc0 << 16) | 0xb8; - /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1 */ - case AMOVDW: return o | (0x0b << 24) | (0xc0 << 16) | 0xbd; + case AMOVWF: + /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1, sz=0, opc2=b_000 */ + return o | (0x0a << 24) | (0xc0 << 16) | 0xb8; + case AMOVFW: + /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1, sz=0, opc2=b_101 */ + return o | (0x0a << 24) | (0xc0 << 16) | 0xbd; + case AMOVWD: + /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1, sz=1, opc2=b_000 */ + return o | (0x0b << 24) | (0xc0 << 16) | 0xb8; + case AMOVDW: + /* VCVT (ARMv7-M ARM, A7.7.225), encoding T1, op=1, sz=1, opc2=b_101 */ + return o | (0x0b << 24) | (0xc0 << 16) | 0xbd; /* VCVT (ARMv7-M ARM, A7.7.227), encoding T1 */ case AMOVFD: return o | (0x0a<<24) | (0xc0<<16) | 0xb7; case AMOVDF: return o | (0x0b<<24) | (0xc0<<16) | 0xb7; |