diff options
| author | Sigrid Solveig Haflínudóttir <sigrid@ftrv.se> | 2023-05-16 01:07:08 +0000 |
|---|---|---|
| committer | Sigrid Solveig Haflínudóttir <sigrid@ftrv.se> | 2023-05-16 01:07:08 +0000 |
| commit | cc37c8a385b1b2eedbb86ef7f9ff02bd1fd42bd1 (patch) | |
| tree | 00fda69a40796ae0e3a0bb70c66fd0bf17cb6caa /sys/src | |
| parent | 45ad7fb2547ea58c1733387c21b295c04625a176 (diff) | |
libmach: add more floating point instructions decoding for arm64
Diffstat (limited to 'sys/src')
| -rw-r--r-- | sys/src/libmach/7db.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/src/libmach/7db.c b/sys/src/libmach/7db.c index f12432262..606a1d00c 100644 --- a/sys/src/libmach/7db.c +++ b/sys/src/libmach/7db.c @@ -262,8 +262,19 @@ static Opcode opcodes[] = "FF11110101uuuuuuuuuuuunnnnnddddd", "FMOV%F", "%u(R%n),F%d", "FF111100010ooooooooo0011111ddddd", "FMOV%F", "%o(SP),F%d", "FF111100010ooooooooo00nnnnnddddd", "FMOV%F", "%o(R%n),F%d", + "FF11110100uuuuuuuuuuuunnnnnddddd", "FMOV%F", "F%d,%u(R%n)", + "00011110ZZ100000010000nnnnnddddd", "FMOV%Z", "F%m,F%d", + "00011110ZZ1ffffffff10000000ddddd", "FMOV%Z", "$%f,F%d", "W0011110ZZ111000000000nnnnnddddd", "FCVTZS%Z%W", "F%n,R%d", "W0011110ZZ111001000000nnnnnddddd", "FCVTZU%Z%W", "F%n,R%d", + "00011110ZZ10001zz10000nnnnnddddd", "FCVT%Z%z", "F%n,F%d", + "00011110ZZ100000001000nnnnn01000", "FCMP%Z", "$0.0,F%n", + "00011110ZZ1mmmmm001000nnnnn00000", "FCMP%Z", "F%m,F%n", + "W0011110ZZ100010000000nnnnnddddd", "SCVTF%W%Z", "R%n,F%d", + "00011110ZZ1mmmmm000010nnnnnddddd", "FMUL%Z", "F%m,F%n,F%d", + "00011110ZZ1mmmmm000110nnnnnddddd", "FDIV%Z", "F%m,F%n,F%d", + "00011110ZZ1mmmmm001010nnnnnddddd", "FADD%Z", "F%m,F%n,F%d", + "00011110ZZ1mmmmm001110nnnnnddddd", "FSUB%Z", "F%m,F%n,F%d", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "WORD", "$%x", }; @@ -450,6 +461,7 @@ format(char *mnemonic, Instr *i, char *f) Symbol s; uvlong v; ulong w, u, m; + char sf[16]; if(mnemonic) format(0, i, mnemonic); @@ -519,6 +531,13 @@ format(char *mnemonic, Instr *i, char *f) bprint(i, "%lud", u); break; + case 'f': // Floating point immediate + u = ((u & 0x80)<<8 | ((u & 0x40) ? 0x3e00 : 0x4000) | (u & 0x3f)<<3) << 16; + strcpy(sf, "???"); + ieeesftos(sf, sizeof(sf), u); + bprint(i, "%s", sf + (*sf == ' ')); + break; + case 'o': // Signed byte offset w = nbits(m); bprint(i, "%ld", sext(u, w) << (w == 7 ? 2 + (i->w>>31) : 0)); @@ -604,6 +623,7 @@ format(char *mnemonic, Instr *i, char *f) break; case 'Z': // FP type + case 'z': *i->curr++ = "SD?H"[u]; break; |