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authorbunnei <bunneidev@gmail.com>2014-12-27 07:04:18 +0100
committerbunnei <bunneidev@gmail.com>2014-12-27 07:04:18 +0100
commit28e64806cd276b3b763e57a5dc026ba153689c88 (patch)
treed9a70c953966e275b60b0471ca568b011e6f8a3c /src/core/arm
parentMerge pull request #348 from lioncash/uhops (diff)
parentdyncom: Implement UHADD8, UHADD16, UHSUB8, UHSUB16, UHASX, and UHSAX (diff)
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Diffstat (limited to '')
-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp134
1 files changed, 123 insertions, 11 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 460001b1a..9b355fc6e 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -3086,15 +3086,47 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(tst)(unsigned int inst, int index)
inst_base->load_r15 = 1;
return inst_base;
}
-ARM_INST_PTR INTERPRETER_TRANSLATE(uadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UADD16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(uadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UADD8"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(uadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UADD16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(uaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHADD16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHADD8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHADDSUBX"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(uhsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("UHSUBADDX"); }
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd8)(unsigned int inst, int index)
+{
+ arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst));
+ generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component;
+
+ inst_base->cond = BITS(inst, 28, 31);
+ inst_base->idx = index;
+ inst_base->br = NON_BRANCH;
+ inst_base->load_r15 = 0;
+
+ inst_cream->op1 = BITS(inst, 20, 21);
+ inst_cream->op2 = BITS(inst, 5, 7);
+ inst_cream->Rm = BITS(inst, 0, 3);
+ inst_cream->Rn = BITS(inst, 16, 19);
+ inst_cream->Rd = BITS(inst, 12, 15);
+
+ return inst_base;
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhadd16)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uhadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhaddsubx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uhadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub8)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uhadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsub16)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uhadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uhsubaddx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uhadd8)(inst, index);
+}
ARM_INST_PTR INTERPRETER_TRANSLATE(umaal)(unsigned int inst, int index)
{
arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(umaal_inst));
@@ -6622,15 +6654,95 @@ unsigned InterpreterMainLoop(ARMul_State* state)
FETCH_INST;
GOTO_NEXT_INST;
}
- UADD16_INST:
UADD8_INST:
+ UADD16_INST:
UADDSUBX_INST:
- UHADD16_INST:
+
UHADD8_INST:
+ UHADD16_INST:
UHADDSUBX_INST:
- UHSUB16_INST:
- UHSUB8_INST:
UHSUBADDX_INST:
+ UHSUB8_INST:
+ UHSUB16_INST:
+ {
+ INC_ICOUNTER;
+ if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
+ generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component;
+
+ const u32 rm_val = RM;
+ const u32 rn_val = RN;
+ const u8 op2 = inst_cream->op2;
+
+
+ if (op2 == 0x00 || op2 == 0x01 || op2 == 0x02 || op2 == 0x03)
+ {
+ u32 lo_val = 0;
+ u32 hi_val = 0;
+
+ // UHADD16
+ if (op2 == 0x00) {
+ lo_val = (rn_val & 0xFFFF) + (rm_val & 0xFFFF);
+ hi_val = ((rn_val >> 16) & 0xFFFF) + ((rm_val >> 16) & 0xFFFF);
+ }
+ // UHASX
+ else if (op2 == 0x01) {
+ lo_val = (rn_val & 0xFFFF) - ((rm_val >> 16) & 0xFFFF);
+ hi_val = ((rn_val >> 16) & 0xFFFF) + (rm_val & 0xFFFF);
+ }
+ // UHSAX
+ else if (op2 == 0x02) {
+ lo_val = (rn_val & 0xFFFF) + ((rm_val >> 16) & 0xFFFF);
+ hi_val = ((rn_val >> 16) & 0xFFFF) - (rm_val & 0xFFFF);
+ }
+ // UHSUB16
+ else if (op2 == 0x03) {
+ lo_val = (rn_val & 0xFFFF) - (rm_val & 0xFFFF);
+ hi_val = ((rn_val >> 16) & 0xFFFF) - ((rm_val >> 16) & 0xFFFF);
+ }
+
+ lo_val >>= 1;
+ hi_val >>= 1;
+
+ RD = (lo_val & 0xFFFF) | ((hi_val & 0xFFFF) << 16);
+ }
+ else if (op2 == 0x04 || op2 == 0x07) {
+ u32 sum1;
+ u32 sum2;
+ u32 sum3;
+ u32 sum4;
+
+ // UHADD8
+ if (op2 == 0x04) {
+ sum1 = (rn_val & 0xFF) + (rm_val & 0xFF);
+ sum2 = ((rn_val >> 8) & 0xFF) + ((rm_val >> 8) & 0xFF);
+ sum3 = ((rn_val >> 16) & 0xFF) + ((rm_val >> 16) & 0xFF);
+ sum4 = ((rn_val >> 24) & 0xFF) + ((rm_val >> 24) & 0xFF);
+ }
+ // UHSUB8
+ else {
+ sum1 = (rn_val & 0xFF) - (rm_val & 0xFF);
+ sum2 = ((rn_val >> 8) & 0xFF) - ((rm_val >> 8) & 0xFF);
+ sum3 = ((rn_val >> 16) & 0xFF) - ((rm_val >> 16) & 0xFF);
+ sum4 = ((rn_val >> 24) & 0xFF) - ((rm_val >> 24) & 0xFF);
+ }
+
+ sum1 >>= 1;
+ sum2 >>= 1;
+ sum3 >>= 1;
+ sum4 >>= 1;
+
+ RD = (sum1 & 0xFF) | ((sum2 & 0xFF) << 8) | ((sum3 & 0xFF) << 16) | ((sum4 & 0xFF) << 24);
+ }
+
+ }
+
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
+
+
UMAAL_INST:
{
INC_ICOUNTER;