ARM: Decode the thumb version of the ldrd and strd instructions.
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1 changed files with 52 additions and 6 deletions
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@ -263,8 +263,8 @@ def format Thumb32LdrStrDExTbh() {{
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const uint32_t op3 = bits(machInst, 7, 4);
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const uint32_t op3 = bits(machInst, 7, 4);
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const IntRegIndex rn = (IntRegIndex)(uint32_t)bits(machInst, 19, 16);
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const IntRegIndex rn = (IntRegIndex)(uint32_t)bits(machInst, 19, 16);
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const IntRegIndex rt = (IntRegIndex)(uint32_t)bits(machInst, 15, 12);
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const IntRegIndex rt = (IntRegIndex)(uint32_t)bits(machInst, 15, 12);
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/* This isn't used yet, and that makes gcc upset. */
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const IntRegIndex rt2 = (IntRegIndex)(uint32_t)bits(machInst, 11, 8);
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//const IntRegIndex rt2 = (IntRegIndex)(uint32_t)bits(machInst, 11, 8);
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const uint32_t imm8 = bits(machInst, 7, 0);
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if (bits(op1, 1) == 0 && bits(op2, 1) == 0) {
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if (bits(op1, 1) == 0 && bits(op2, 1) == 0) {
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if (op1 == 0) {
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if (op1 == 0) {
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const uint32_t imm = bits(machInst, 7, 0) << 2;
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const uint32_t imm = bits(machInst, 7, 0) << 2;
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@ -296,24 +296,70 @@ def format Thumb32LdrStrDExTbh() {{
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case 0x5:
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case 0x5:
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return new %(ldrexh)s(machInst, rt, rn, true, 0);
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return new %(ldrexh)s(machInst, rt, rn, true, 0);
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case 0x7:
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case 0x7:
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return new WarnUnimplemented("ldrexd", machInst);
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return new %(ldrexd)s(machInst, rt, rt2, rn, true, 0);
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default:
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default:
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return new Unknown(machInst);
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return new Unknown(machInst);
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}
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}
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}
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}
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}
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}
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} else {
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} else {
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const uint32_t puw = (bits(machInst, 24, 23) << 1) |
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bits(machInst, 21);
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const uint32_t dimm = imm8 << 2;
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if (bits(op2, 0) == 0) {
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if (bits(op2, 0) == 0) {
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return new WarnUnimplemented("strd", machInst);
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switch (puw) {
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case 0x1:
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return new %(strd_w)s(machInst, rt, rt2, rn, false, dimm);
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case 0x3:
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return new %(strd_uw)s(machInst, rt, rt2, rn, true, dimm);
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case 0x4:
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return new %(strd_p)s(machInst, rt, rt2, rn, false, dimm);
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case 0x5:
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return new %(strd_pw)s(machInst, rt, rt2, rn, false, dimm);
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case 0x6:
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return new %(strd_pu)s(machInst, rt, rt2, rn, true, dimm);
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case 0x7:
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return new %(strd_puw)s(machInst, rt, rt2, rn, true, dimm);
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default:
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return new Unknown(machInst);
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}
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} else {
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} else {
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return new WarnUnimplemented("ldrd", machInst);
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switch (puw) {
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case 0x1:
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return new %(ldrd_w)s(machInst, rt, rt2, rn, false, dimm);
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case 0x3:
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return new %(ldrd_uw)s(machInst, rt, rt2, rn, true, dimm);
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case 0x4:
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return new %(ldrd_p)s(machInst, rt, rt2, rn, false, dimm);
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case 0x5:
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return new %(ldrd_pw)s(machInst, rt, rt2, rn, false, dimm);
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case 0x6:
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return new %(ldrd_pu)s(machInst, rt, rt2, rn, true, dimm);
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case 0x7:
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return new %(ldrd_puw)s(machInst, rt, rt2, rn, true, dimm);
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default:
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return new Unknown(machInst);
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}
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}
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}
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}
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}
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}
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}
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''' % {
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''' % {
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"ldrex" : "LDREX_" + loadImmClassName(False, True, False, size=4),
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"ldrex" : "LDREX_" + loadImmClassName(False, True, False, size=4),
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"ldrexb" : "LDREXB_" + loadImmClassName(False, True, False, size=1),
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"ldrexb" : "LDREXB_" + loadImmClassName(False, True, False, size=1),
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"ldrexh" : "LDREXH_" + loadImmClassName(False, True, False, size=2)
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"ldrexh" : "LDREXH_" + loadImmClassName(False, True, False, size=2),
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"ldrexd" : "LDREXD_" + loadDoubleImmClassName(False, True, False),
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"ldrd_w" : loadDoubleImmClassName(True, False, True),
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"ldrd_uw" : loadDoubleImmClassName(True, True, True),
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"ldrd_p" : loadDoubleImmClassName(False, False, False),
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"ldrd_pw" : loadDoubleImmClassName(False, False, True),
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"ldrd_pu" : loadDoubleImmClassName(False, True, False),
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"ldrd_puw" : loadDoubleImmClassName(False, True, True),
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"strd_w" : storeDoubleImmClassName(True, False, True),
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"strd_uw" : storeDoubleImmClassName(True, True, True),
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"strd_p" : storeDoubleImmClassName(False, False, False),
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"strd_pw" : storeDoubleImmClassName(False, False, True),
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"strd_pu" : storeDoubleImmClassName(False, True, False),
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"strd_puw" : storeDoubleImmClassName(False, True, True)
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}
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}
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}};
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}};
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