Fix clock cycle count for MUL, MLA instructions... (b91f39c787
)
- backport Fix clock cycle count for some arm/thumb instructions (5243b2d806
) - backport Fix base cycle count for MUL, MLA series (b91f39c787
)
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c07d5b658b
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@ -1251,7 +1251,7 @@ DEFINE_ALU_INSN_C(1F, 3F, MVNS, YES)
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clockTicks += 3; \
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if (busPrefetchCount == 0) \
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busPrefetchCount = ((busPrefetchCount + 1) << clockTicks) - 1; \
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clockTicks += 1 + codeTicksAccess32(armNextPC);
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clockTicks += CYCLES + 1 + codeTicksAccess32(armNextPC);
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#define OP_MUL \
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reg[dest].I = reg[mult].I * rs;
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@ -2581,8 +2581,7 @@ static INSN_REGPARM void armA00(uint32_t opcode)
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armNextPC = reg[15].I;
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reg[15].I += 4;
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ARM_PREFETCH;
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clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
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clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
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clockTicks = (codeTicksAccessSeq32(armNextPC) * 2) + codeTicksAccess32(armNextPC) + 3;
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busPrefetchCount = 0;
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}
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@ -2595,8 +2594,7 @@ static INSN_REGPARM void armB00(uint32_t opcode)
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armNextPC = reg[15].I;
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reg[15].I += 4;
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ARM_PREFETCH;
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clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
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clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
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clockTicks = (codeTicksAccessSeq32(armNextPC) * 2) + codeTicksAccess32(armNextPC) + 3;
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busPrefetchCount = 0;
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}
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@ -2612,8 +2610,7 @@ static INSN_REGPARM void armE01(uint32_t opcode)
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// SWI <comment>
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static INSN_REGPARM void armF00(uint32_t opcode)
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{
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clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
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clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
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clockTicks = (codeTicksAccessSeq32(armNextPC) * 2) + codeTicksAccess32(armNextPC) + 3;
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busPrefetchCount = 0;
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CPUSoftwareInterrupt(opcode & 0x00FFFFFF);
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}
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@ -1146,9 +1146,9 @@ static INSN_REGPARM void thumb43_1(uint32_t opcode)
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reg[dest].I = reg[(opcode >> 3) & 7].I * rm;
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if (((int32_t)rm) < 0)
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rm = ~rm;
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if ((rm & 0xFFFFFF00) == 0)
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clockTicks += 0;
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else if ((rm & 0xFFFF0000) == 0)
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if ((rm & 0xFFFFFF00) == 0) {
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// clockTicks += 0;
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} else if ((rm & 0xFFFF0000) == 0)
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clockTicks += 1;
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else if ((rm & 0xFF000000) == 0)
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clockTicks += 2;
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@ -1594,7 +1594,7 @@ static INSN_REGPARM void thumbBC(uint32_t opcode)
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POP_REG(64, 6);
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POP_REG(128, 7);
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reg[13].I = temp;
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clockTicks = 2 + codeTicksAccess16(armNextPC);
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clockTicks += 2 + codeTicksAccess16(armNextPC);
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}
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// POP {Rlist, PC}
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@ -1625,7 +1625,7 @@ static INSN_REGPARM void thumbBD(uint32_t opcode)
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reg[13].I = temp;
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THUMB_PREFETCH;
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busPrefetchCount = 0;
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clockTicks += 3 + codeTicksAccess16(armNextPC) + codeTicksAccess16(armNextPC);
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clockTicks += 3 + (codeTicksAccess16(armNextPC) * 2);
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}
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// Load/store multiple ////////////////////////////////////////////////////
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@ -1673,7 +1673,7 @@ static INSN_REGPARM void thumbC0(uint32_t opcode)
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THUMB_STM_REG(32, 5, regist);
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THUMB_STM_REG(64, 6, regist);
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THUMB_STM_REG(128, 7, regist);
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clockTicks = 1 + codeTicksAccess16(armNextPC);
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clockTicks += 1 + codeTicksAccess16(armNextPC);
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}
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// LDM R0~R7!, {Rlist}
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@ -1694,7 +1694,7 @@ static INSN_REGPARM void thumbC8(uint32_t opcode)
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THUMB_LDM_REG(32, 5);
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THUMB_LDM_REG(64, 6);
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THUMB_LDM_REG(128, 7);
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clockTicks = 2 + codeTicksAccess16(armNextPC);
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clockTicks += 2 + codeTicksAccess16(armNextPC);
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if (!(opcode & (1 << regist)))
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reg[regist].I = temp;
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}
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@ -1703,7 +1703,7 @@ static INSN_REGPARM void thumbC8(uint32_t opcode)
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#define THUMB_CONDITIONAL_BRANCH(COND) \
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UPDATE_OLDREG; \
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clockTicks = codeTicksAccessSeq16(armNextPC) + 1; \
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if (COND) { \
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if ((bool)COND) { \
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uint32_t offset = (uint32_t)((int8_t)(opcode & 0xFF)) << 1; \
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reg[15].I += offset; \
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armNextPC = reg[15].I; \
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