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authormerry <git@mary.rs>2022-02-17 22:39:45 +0000
committerGitHub <noreply@github.com>2022-02-17 19:39:45 -0300
commit98e05ee4b7aa8a08088b1f0cd6c581bb50f11395 (patch)
treeaf9cf98afb6c44161fadd87bfe7946c7a4250e47 /ARMeilleure/Decoders/OpCodeT16ShiftImm.cs
parent868919e101ba5d5ad1cfccb5017b294fec11c6e3 (diff)
ARMeilleure: Thumb support (All T16 instructions) (#3105)1.1.36
* Decoders: Add InITBlock argument * OpCodeTable: Minor cleanup * OpCodeTable: Remove existing thumb instruction implementations * OpCodeTable: Prepare for thumb instructions * OpCodeTables: Improve thumb fast lookup * Tests: Prepare for thumb tests * T16: Implement BX * T16: Implement LSL/LSR/ASR (imm) * T16: Implement ADDS, SUBS (reg) * T16: Implement ADDS, SUBS (3-bit immediate) * T16: Implement MOVS, CMP, ADDS, SUBS (8-bit immediate) * T16: Implement ANDS, EORS, LSLS, LSRS, ASRS, ADCS, SBCS, RORS, TST, NEGS, CMP, CMN, ORRS, MULS, BICS, MVNS (low registers) * T16: Implement ADD, CMP, MOV (high reg) * T16: Implement BLX (reg) * T16: Implement LDR (literal) * T16: Implement {LDR,STR}{,H,B,SB,SH} (register) * T16: Implement {LDR,STR}{,B,H} (immediate) * T16: Implement LDR/STR (SP) * T16: Implement ADR * T16: Implement Add to SP (immediate) * T16: Implement ADD/SUB (SP) * T16: Implement SXTH, SXTB, UXTH, UTXB * T16: Implement CBZ, CBNZ * T16: Implement PUSH, POP * T16: Implement REV, REV16, REVSH * T16: Implement NOP * T16: Implement LDM, STM * T16: Implement SVC * T16: Implement B (conditional) * T16: Implement B (unconditional) * T16: Implement IT * fixup! T16: Implement ADD/SUB (SP) * fixup! T16: Implement Add to SP (immediate) * fixup! T16: Implement IT * CpuTestThumb: Add randomized tests * Remove inITBlock argument * Address nits * Use index to handle IfThenBlockState * Reduce line noise * fixup * nit
Diffstat (limited to 'ARMeilleure/Decoders/OpCodeT16ShiftImm.cs')
-rw-r--r--ARMeilleure/Decoders/OpCodeT16ShiftImm.cs24
1 files changed, 24 insertions, 0 deletions
diff --git a/ARMeilleure/Decoders/OpCodeT16ShiftImm.cs b/ARMeilleure/Decoders/OpCodeT16ShiftImm.cs
new file mode 100644
index 00000000..a540026e
--- /dev/null
+++ b/ARMeilleure/Decoders/OpCodeT16ShiftImm.cs
@@ -0,0 +1,24 @@
+namespace ARMeilleure.Decoders
+{
+ class OpCodeT16ShiftImm : OpCodeT16, IOpCode32AluRsImm
+ {
+ public int Rd { get; }
+ public int Rn { get; }
+ public int Rm { get; }
+
+ public int Immediate { get; }
+ public ShiftType ShiftType { get; }
+
+ public bool? SetFlags => null;
+
+ public static new OpCode Create(InstDescriptor inst, ulong address, int opCode) => new OpCodeT16ShiftImm(inst, address, opCode);
+
+ public OpCodeT16ShiftImm(InstDescriptor inst, ulong address, int opCode) : base(inst, address, opCode)
+ {
+ Rd = (opCode >> 0) & 0x7;
+ Rm = (opCode >> 3) & 0x7;
+ Immediate = (opCode >> 6) & 0x1F;
+ ShiftType = (ShiftType)((opCode >> 11) & 3);
+ }
+ }
+}