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Merge pull request #489 from lioncash/strt 

dyncom: Handle the ARM A2 encoding of STRT/LDRT
This commit is contained in:
bunnei 2015-01-18 10:55:20 -05:00
parent 14308a88a7 8575010a68
commit 1cb31f4f06
1 changed files with 24 additions and 10 deletions
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26
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
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@ -1840,17 +1840,24 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(ldrsh)(unsigned int inst, int index)
}
ARM_INST_PTR INTERPRETER_TRANSLATE(ldrt)(unsigned int inst, int index)
{
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
arm_inst* inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_base->cond = BITS(inst, 28, 31);
inst_base->idx = index;
inst_base->br = NON_BRANCH;
inst_cream->inst = inst;
if (I_BIT == 0) {
if (BITS(inst, 25, 27) == 2) {
inst_cream->get_addr = LnSWoUB(ImmediatePostIndexed);
} else if (BITS(inst, 25, 27) == 3) {
inst_cream->get_addr = LnSWoUB(ScaledRegisterPostIndexed);
} else {
// Reaching this would indicate the thumb version
// of this instruction, however the 3DS CPU doesn't
// support this variant (the 3DS CPU is only ARMv6K,
// while this variant is added in ARMv6T2).
// So it's sufficient for citra to not implement this.
DEBUG_MSG;
}
@ -2792,17 +2799,24 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(strh)(unsigned int inst, int index)
}
ARM_INST_PTR INTERPRETER_TRANSLATE(strt)(unsigned int inst, int index)
{
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
ldst_inst *inst_cream = (ldst_inst *)inst_base->component;
arm_inst* inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(ldst_inst));
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_base->cond = BITS(inst, 28, 31);
inst_base->idx = index;
inst_base->br = NON_BRANCH;
inst_cream->inst = inst;
if (I_BIT == 0) {
if (BITS(inst, 25, 27) == 2) {
inst_cream->get_addr = LnSWoUB(ImmediatePostIndexed);
} else if (BITS(inst, 25, 27) == 3) {
inst_cream->get_addr = LnSWoUB(ScaledRegisterPostIndexed);
} else {
// Reaching this would indicate the thumb version
// of this instruction, however the 3DS CPU doesn't
// support this variant (the 3DS CPU is only ARMv6K,
// while this variant is added in ARMv6T2).
// So it's sufficient for citra to not implement this.
DEBUG_MSG;
}