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-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp217
1 files changed, 208 insertions, 9 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 926761cff..c61ae0053 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -2785,9 +2785,46 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(tst)(unsigned int inst, int index)
inst_base->load_r15 = 1;
return inst_base;
}
-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(uadd8)(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(uadd16)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(uaddsubx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usub8)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uadd8)(inst, index);
+}
+ARM_INST_PTR INTERPRETER_TRANSLATE(usubaddx)(unsigned int inst, int index)
+{
+ return INTERPRETER_TRANSLATE(uadd8)(inst, index);
+}
+
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));
@@ -3017,9 +3054,6 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index)
{
return INTERPRETER_TRANSLATE(ssat16)(inst, index);
}
-ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB16"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB8"); }
-ARM_INST_PTR INTERPRETER_TRANSLATE(usubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUBADDX"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(uxtab16)(unsigned int inst, int index)
{
@@ -5769,9 +5803,177 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
FETCH_INST;
GOTO_NEXT_INST;
}
+
UADD8_INST:
UADD16_INST:
UADDSUBX_INST:
+ USUB8_INST:
+ USUB16_INST:
+ USUBADDX_INST:
+ {
+ if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
+ generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component;
+
+ const u8 op2 = inst_cream->op2;
+ const u32 rm_val = RM;
+ const u32 rn_val = RN;
+
+ s32 lo_result = 0;
+ s32 hi_result = 0;
+
+ // UADD16
+ if (op2 == 0x00) {
+ lo_result = (rn_val & 0xFFFF) + (rm_val & 0xFFFF);
+ hi_result = ((rn_val >> 16) & 0xFFFF) + ((rm_val >> 16) & 0xFFFF);
+
+ if (lo_result & 0xFFFF0000) {
+ cpu->Cpsr |= (1 << 16);
+ cpu->Cpsr |= (1 << 17);
+ } else {
+ cpu->Cpsr &= ~(1 << 16);
+ cpu->Cpsr &= ~(1 << 17);
+ }
+
+ if (hi_result & 0xFFFF0000) {
+ cpu->Cpsr |= (1 << 18);
+ cpu->Cpsr |= (1 << 19);
+ } else {
+ cpu->Cpsr &= ~(1 << 18);
+ cpu->Cpsr &= ~(1 << 19);
+ }
+ }
+ // UASX
+ else if (op2 == 0x01) {
+ lo_result = (rn_val & 0xFFFF) - ((rm_val >> 16) & 0xFFFF);
+ hi_result = ((rn_val >> 16) & 0xFFFF) + (rm_val & 0xFFFF);
+
+ if (lo_result >= 0) {
+ cpu->Cpsr |= (1 << 16);
+ cpu->Cpsr |= (1 << 17);
+ } else {
+ cpu->Cpsr &= ~(1 << 16);
+ cpu->Cpsr &= ~(1 << 17);
+ }
+
+ if (hi_result >= 0x10000) {
+ cpu->Cpsr |= (1 << 18);
+ cpu->Cpsr |= (1 << 19);
+ } else {
+ cpu->Cpsr &= ~(1 << 18);
+ cpu->Cpsr &= ~(1 << 19);
+ }
+ }
+ // USAX
+ else if (op2 == 0x02) {
+ lo_result = (rn_val & 0xFFFF) + ((rm_val >> 16) & 0xFFFF);
+ hi_result = ((rn_val >> 16) & 0xFFFF) - (rm_val & 0xFFFF);
+
+ if (lo_result >= 0x10000) {
+ cpu->Cpsr |= (1 << 16);
+ cpu->Cpsr |= (1 << 17);
+ } else {
+ cpu->Cpsr &= ~(1 << 16);
+ cpu->Cpsr &= ~(1 << 17);
+ }
+
+ if (hi_result >= 0) {
+ cpu->Cpsr |= (1 << 18);
+ cpu->Cpsr |= (1 << 19);
+ } else {
+ cpu->Cpsr &= ~(1 << 18);
+ cpu->Cpsr &= ~(1 << 19);
+ }
+ }
+ // USUB16
+ else if (op2 == 0x03) {
+ lo_result = (rn_val & 0xFFFF) - (rm_val & 0xFFFF);
+ hi_result = ((rn_val >> 16) & 0xFFFF) - ((rm_val >> 16) & 0xFFFF);
+
+ if ((lo_result & 0xFFFF0000) == 0) {
+ cpu->Cpsr |= (1 << 16);
+ cpu->Cpsr |= (1 << 17);
+ } else {
+ cpu->Cpsr &= ~(1 << 16);
+ cpu->Cpsr &= ~(1 << 17);
+ }
+
+ if ((hi_result & 0xFFFF0000) == 0) {
+ cpu->Cpsr |= (1 << 18);
+ cpu->Cpsr |= (1 << 19);
+ } else {
+ cpu->Cpsr &= ~(1 << 18);
+ cpu->Cpsr &= ~(1 << 19);
+ }
+ }
+ // UADD8
+ else if (op2 == 0x04) {
+ s16 sum1 = (rn_val & 0xFF) + (rm_val & 0xFF);
+ s16 sum2 = ((rn_val >> 8) & 0xFF) + ((rm_val >> 8) & 0xFF);
+ s16 sum3 = ((rn_val >> 16) & 0xFF) + ((rm_val >> 16) & 0xFF);
+ s16 sum4 = ((rn_val >> 24) & 0xFF) + ((rm_val >> 24) & 0xFF);
+
+ if (sum1 >= 0x100)
+ state->Cpsr |= (1 << 16);
+ else
+ state->Cpsr &= ~(1 << 16);
+
+ if (sum2 >= 0x100)
+ state->Cpsr |= (1 << 17);
+ else
+ state->Cpsr &= ~(1 << 17);
+
+ if (sum3 >= 0x100)
+ state->Cpsr |= (1 << 18);
+ else
+ state->Cpsr &= ~(1 << 18);
+
+ if (sum4 >= 0x100)
+ state->Cpsr |= (1 << 19);
+ else
+ state->Cpsr &= ~(1 << 19);
+
+ lo_result = ((sum1 & 0xFF) | (sum2 & 0xFF) << 8);
+ hi_result = ((sum3 & 0xFF) | (sum4 & 0xFF) << 8);
+ }
+ // USUB8
+ else if (op2 == 0x07) {
+ s16 diff1 = (rn_val & 0xFF) - (rm_val & 0xFF);
+ s16 diff2 = ((rn_val >> 8) & 0xFF) - ((rm_val >> 8) & 0xFF);
+ s16 diff3 = ((rn_val >> 16) & 0xFF) - ((rm_val >> 16) & 0xFF);
+ s16 diff4 = ((rn_val >> 24) & 0xFF) - ((rm_val >> 24) & 0xFF);
+
+ if (diff1 >= 0)
+ state->Cpsr |= (1 << 16);
+ else
+ state->Cpsr &= ~(1 << 16);
+
+ if (diff2 >= 0)
+ state->Cpsr |= (1 << 17);
+ else
+ state->Cpsr &= ~(1 << 17);
+
+ if (diff3 >= 0)
+ state->Cpsr |= (1 << 18);
+ else
+ state->Cpsr &= ~(1 << 18);
+
+ if (diff4 >= 0)
+ state->Cpsr |= (1 << 19);
+ else
+ state->Cpsr &= ~(1 << 19);
+
+ lo_result = (diff1 & 0xFF) | ((diff2 & 0xFF) << 8);
+ hi_result = (diff3 & 0xFF) | ((diff4 & 0xFF) << 8);
+ }
+
+ RD = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16);
+ }
+
+ cpu->Reg[15] += GET_INST_SIZE(cpu);
+ INC_PC(sizeof(generic_arm_inst));
+ FETCH_INST;
+ GOTO_NEXT_INST;
+ }
UHADD8_INST:
UHADD16_INST:
@@ -6109,9 +6311,6 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
GOTO_NEXT_INST;
}
- USUB16_INST:
- USUB8_INST:
- USUBADDX_INST:
UXTAB16_INST:
UXTB16_INST:
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 16:58:42 +0100