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Diffstat (limited to 'disas/libvixl/a64/disasm-a64.cc')
-rw-r--r--disas/libvixl/a64/disasm-a64.cc88
1 files changed, 72 insertions, 16 deletions
diff --git a/disas/libvixl/a64/disasm-a64.cc b/disas/libvixl/a64/disasm-a64.cc
index f81ce4bbb8..248ebfd436 100644
--- a/disas/libvixl/a64/disasm-a64.cc
+++ b/disas/libvixl/a64/disasm-a64.cc
@@ -24,6 +24,7 @@
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#include <cstdlib>
#include "a64/disasm-a64.h"
namespace vixl {
@@ -529,7 +530,7 @@ void Disassembler::VisitExtract(Instruction* instr) {
void Disassembler::VisitPCRelAddressing(Instruction* instr) {
switch (instr->Mask(PCRelAddressingMask)) {
case ADR: Format(instr, "adr", "'Xd, 'AddrPCRelByte"); break;
- // ADRP is not implemented.
+ case ADRP: Format(instr, "adrp", "'Xd, 'AddrPCRelPage"); break;
default: Format(instr, "unimplemented", "(PCRelAddressing)");
}
}
@@ -943,6 +944,49 @@ void Disassembler::VisitLoadStorePairNonTemporal(Instruction* instr) {
}
+void Disassembler::VisitLoadStoreExclusive(Instruction* instr) {
+ const char *mnemonic = "unimplemented";
+ const char *form;
+
+ switch (instr->Mask(LoadStoreExclusiveMask)) {
+ case STXRB_w: mnemonic = "stxrb"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STXRH_w: mnemonic = "stxrh"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STXR_w: mnemonic = "stxr"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STXR_x: mnemonic = "stxr"; form = "'Ws, 'Xt, ['Xns]"; break;
+ case LDXRB_w: mnemonic = "ldxrb"; form = "'Wt, ['Xns]"; break;
+ case LDXRH_w: mnemonic = "ldxrh"; form = "'Wt, ['Xns]"; break;
+ case LDXR_w: mnemonic = "ldxr"; form = "'Wt, ['Xns]"; break;
+ case LDXR_x: mnemonic = "ldxr"; form = "'Xt, ['Xns]"; break;
+ case STXP_w: mnemonic = "stxp"; form = "'Ws, 'Wt, 'Wt2, ['Xns]"; break;
+ case STXP_x: mnemonic = "stxp"; form = "'Ws, 'Xt, 'Xt2, ['Xns]"; break;
+ case LDXP_w: mnemonic = "ldxp"; form = "'Wt, 'Wt2, ['Xns]"; break;
+ case LDXP_x: mnemonic = "ldxp"; form = "'Xt, 'Xt2, ['Xns]"; break;
+ case STLXRB_w: mnemonic = "stlxrb"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STLXRH_w: mnemonic = "stlxrh"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STLXR_w: mnemonic = "stlxr"; form = "'Ws, 'Wt, ['Xns]"; break;
+ case STLXR_x: mnemonic = "stlxr"; form = "'Ws, 'Xt, ['Xns]"; break;
+ case LDAXRB_w: mnemonic = "ldaxrb"; form = "'Wt, ['Xns]"; break;
+ case LDAXRH_w: mnemonic = "ldaxrh"; form = "'Wt, ['Xns]"; break;
+ case LDAXR_w: mnemonic = "ldaxr"; form = "'Wt, ['Xns]"; break;
+ case LDAXR_x: mnemonic = "ldaxr"; form = "'Xt, ['Xns]"; break;
+ case STLXP_w: mnemonic = "stlxp"; form = "'Ws, 'Wt, 'Wt2, ['Xns]"; break;
+ case STLXP_x: mnemonic = "stlxp"; form = "'Ws, 'Xt, 'Xt2, ['Xns]"; break;
+ case LDAXP_w: mnemonic = "ldaxp"; form = "'Wt, 'Wt2, ['Xns]"; break;
+ case LDAXP_x: mnemonic = "ldaxp"; form = "'Xt, 'Xt2, ['Xns]"; break;
+ case STLRB_w: mnemonic = "stlrb"; form = "'Wt, ['Xns]"; break;
+ case STLRH_w: mnemonic = "stlrh"; form = "'Wt, ['Xns]"; break;
+ case STLR_w: mnemonic = "stlr"; form = "'Wt, ['Xns]"; break;
+ case STLR_x: mnemonic = "stlr"; form = "'Xt, ['Xns]"; break;
+ case LDARB_w: mnemonic = "ldarb"; form = "'Wt, ['Xns]"; break;
+ case LDARH_w: mnemonic = "ldarh"; form = "'Wt, ['Xns]"; break;
+ case LDAR_w: mnemonic = "ldar"; form = "'Wt, ['Xns]"; break;
+ case LDAR_x: mnemonic = "ldar"; form = "'Xt, ['Xns]"; break;
+ default: form = "(LoadStoreExclusive)";
+ }
+ Format(instr, mnemonic, form);
+}
+
+
void Disassembler::VisitFPCompare(Instruction* instr) {
const char *mnemonic = "unimplemented";
const char *form = "'Fn, 'Fm";
@@ -1162,7 +1206,15 @@ void Disassembler::VisitSystem(Instruction* instr) {
const char *mnemonic = "unimplemented";
const char *form = "(System)";
- if (instr->Mask(SystemSysRegFMask) == SystemSysRegFixed) {
+ if (instr->Mask(SystemExclusiveMonitorFMask) == SystemExclusiveMonitorFixed) {
+ switch (instr->Mask(SystemExclusiveMonitorMask)) {
+ case CLREX: {
+ mnemonic = "clrex";
+ form = (instr->CRm() == 0xf) ? NULL : "'IX";
+ break;
+ }
+ }
+ } else if (instr->Mask(SystemSysRegFMask) == SystemSysRegFixed) {
switch (instr->Mask(SystemSysRegMask)) {
case MRS: {
mnemonic = "mrs";
@@ -1184,7 +1236,6 @@ void Disassembler::VisitSystem(Instruction* instr) {
}
}
} else if (instr->Mask(SystemHintFMask) == SystemHintFixed) {
- VIXL_ASSERT(instr->Mask(SystemHintMask) == HINT);
switch (instr->ImmHint()) {
case NOP: {
mnemonic = "nop";
@@ -1312,6 +1363,7 @@ int Disassembler::SubstituteRegisterField(Instruction* instr,
case 'n': reg_num = instr->Rn(); break;
case 'm': reg_num = instr->Rm(); break;
case 'a': reg_num = instr->Ra(); break;
+ case 's': reg_num = instr->Rs(); break;
case 't': {
if (format[2] == '2') {
reg_num = instr->Rt2();
@@ -1458,6 +1510,10 @@ int Disassembler::SubstituteImmediateField(Instruction* instr,
AppendToOutput("#0x%" PRIx64, instr->ImmException());
return 6;
}
+ case 'X': { // IX - CLREX instruction.
+ AppendToOutput("#0x%" PRIx64, instr->CRm());
+ return 2;
+ }
default: {
VIXL_UNIMPLEMENTED();
return 0;
@@ -1564,21 +1620,20 @@ int Disassembler::SubstituteConditionField(Instruction* instr,
int Disassembler::SubstitutePCRelAddressField(Instruction* instr,
const char* format) {
- USE(format);
- VIXL_ASSERT(strncmp(format, "AddrPCRel", 9) == 0);
+ VIXL_ASSERT((strcmp(format, "AddrPCRelByte") == 0) || // Used by `adr`.
+ (strcmp(format, "AddrPCRelPage") == 0)); // Used by `adrp`.
- int offset = instr->ImmPCRel();
+ int64_t offset = instr->ImmPCRel();
+ Instruction * base = instr;
- // Only ADR (AddrPCRelByte) is supported.
- VIXL_ASSERT(strcmp(format, "AddrPCRelByte") == 0);
-
- char sign = '+';
- if (offset < 0) {
- offset = -offset;
- sign = '-';
+ if (format[9] == 'P') {
+ offset *= kPageSize;
+ base = AlignDown(base, kPageSize);
}
- VIXL_STATIC_ASSERT(sizeof(*instr) == 1);
- AppendToOutput("#%c0x%x (addr %p)", sign, offset, instr + offset);
+
+ char sign = (offset < 0) ? '-' : '+';
+ void * target = reinterpret_cast<void *>(base + offset);
+ AppendToOutput("#%c0x%" PRIx64 " (addr %p)", sign, std::abs(offset), target);
return 13;
}
@@ -1606,7 +1661,8 @@ int Disassembler::SubstituteBranchTargetField(Instruction* instr,
sign = '-';
}
VIXL_STATIC_ASSERT(sizeof(*instr) == 1);
- AppendToOutput("#%c0x%" PRIx64 " (addr %p)", sign, offset, instr + offset);
+ void * address = reinterpret_cast<void *>(instr + offset);
+ AppendToOutput("#%c0x%" PRIx64 " (addr %p)", sign, offset, address);
return 8;
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-18 09:21:04 +0000