From 79a68cabb033530871a1dab259149480584b2586 Mon Sep 17 00:00:00 2001
From: bd <bdunahu@operationnull.com>
Date: Sun, 11 May 2025 13:08:16 -0400
Subject: Add I_VECT field type for SRDL, SRDS, with two vector reg 1 general

---
 src/id.cc | 41 ++++++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 17 deletions(-)

(limited to 'src/id.cc')

diff --git a/src/id.cc b/src/id.cc
index 3c974e9..12f509f 100644
--- a/src/id.cc
+++ b/src/id.cc
@@ -105,33 +105,41 @@ void ID::decode_R_type(signed int &s1)
 		r2 = this->read_guard<signed int>(
 			s2, this->curr_instr->operands.integer.slot_two);
 		r3 = OK;
-	} else {
+	} else if (this->curr_instr->type == R_VECT) {
 		r1 = this->read_guard<std::array<signed int, V_R_LIMIT>>(
 			s1, this->curr_instr->operands.vector.slot_one);
 		r2 = this->read_guard<std::array<signed int, V_R_LIMIT>>(
 			s2, this->curr_instr->operands.vector.slot_two);
 		r3 = this->set_vlen();
+	} else {
+		// store the second field in s1, to keep execute+mem consistent
+		r1 = this->read_guard<std::array<signed int, V_R_LIMIT>>(
+			s2, this->curr_instr->operands.s_vector.slot_one);
+		r2 = this->read_guard<signed int>(
+			s1, this->curr_instr->operands.s_vector.slot_two);
+		r3 = this->set_vlen();
 	}
 
 	this->status = (r1 == OK && r2 == OK && r3 == OK) ? OK : STALLED;
 
-	switch (this->curr_instr->mnemonic) {
-	case CMP:
-	case CEV:
-		break;
-	case ADDV:
-	case SUBV:
-	case MULV:
-	case DIVV:
-	case SRDL:
-	case SRDS:
-		if (this->status == OK) {
+	if (this->status == OK) {
+		switch (this->curr_instr->mnemonic) {
+		case CMP:
+		case CEV:
+			break;
+		case ADDV:
+		case SUBV:
+		case MULV:
+		case DIVV:
 			this->curr_instr->operands.vector.slot_three =
 				this->write_guard<std::array<signed int, V_R_LIMIT>>(s3);
-		}
-		break;
-	default:
-		if (this->status == OK) {
+			break;
+		case SRDL:
+		case SRDS:
+			this->curr_instr->operands.s_vector.slot_three =
+				this->write_guard<std::array<signed int, V_R_LIMIT>>(s3);
+			break;
+		default:
 			this->curr_instr->operands.integer.slot_three =
 				this->write_guard<signed int>(s3);
 		}
@@ -143,7 +151,6 @@ void ID::decode_I_type(signed int &s1)
 	unsigned int s0b, s1b, s2b;
 	signed int s2, s3;
 	Response r1, r2;
-	Response r3 = OK;
 
 	s0b = REG_SIZE;
 	s1b = s0b + REG_SIZE;
-- 
cgit v1.2.3