diff --git a/src/link/object.cpp b/src/link/object.cpp
index 4115786f..fd17d85b 100644
--- a/src/link/object.cpp
+++ b/src/link/object.cpp
@@ -359,7 +359,7 @@ static void readSection(
 	);
 	tryReadLong(tmp, file, "%s: Cannot read \"%s\"'s' size: %s", fileName, section.name.c_str());
 	if (tmp < 0 || tmp > UINT16_MAX)
-		errx("\"%s\"'s section size (%" PRId32 ") is invalid", section.name.c_str(), tmp);
+		errx("\"%s\"'s section size ($%" PRIx32 ") is invalid", section.name.c_str(), tmp);
 	section.size = tmp;
 	section.offset = 0;
 	tryGetc(
@@ -379,7 +379,7 @@ static void readSection(
 	tryReadLong(tmp, file, "%s: Cannot read \"%s\"'s org: %s", fileName, section.name.c_str());
 	section.isAddressFixed = tmp >= 0;
 	if (tmp > UINT16_MAX) {
-		error(nullptr, 0, "\"%s\"'s org is too large (%" PRId32 ")", section.name.c_str(), tmp);
+		error(nullptr, 0, "\"%s\"'s org is too large ($%" PRIx32 ")", section.name.c_str(), tmp);
 		tmp = UINT16_MAX;
 	}
 	section.org = tmp;
@@ -405,7 +405,7 @@ static void readSection(
 		error(
 		    nullptr,
 		    0,
-		    "\"%s\"'s alignment offset is too large (%" PRId32 ")",
+		    "\"%s\"'s alignment offset is too large ($%" PRIx32 ")",
 		    section.name.c_str(),
 		    tmp
 		);
diff --git a/src/link/patch.cpp b/src/link/patch.cpp
index a3724519..1d7d2764 100644
--- a/src/link/patch.cpp
+++ b/src/link/patch.cpp
@@ -101,9 +101,10 @@ static int32_t computeRPNExpr(Patch const &patch, std::vector<Symbol> const &fil
 		case RPN_DIV:
 			value = popRPN(patch);
 			if (value == 0) {
-				if (!isError)
+				if (!isError) {
 					error(patch.src, patch.lineNo, "Division by 0");
-				isError = true;
+					isError = true;
+				}
 				popRPN(patch);
 				value = INT32_MAX;
 			} else {
@@ -113,9 +114,10 @@ static int32_t computeRPNExpr(Patch const &patch, std::vector<Symbol> const &fil
 		case RPN_MOD:
 			value = popRPN(patch);
 			if (value == 0) {
-				if (!isError)
+				if (!isError) {
 					error(patch.src, patch.lineNo, "Modulo by 0");
-				isError = true;
+					isError = true;
+				}
 				popRPN(patch);
 				value = 0;
 			} else {
@@ -128,9 +130,10 @@ static int32_t computeRPNExpr(Patch const &patch, std::vector<Symbol> const &fil
 		case RPN_EXP:
 			value = popRPN(patch);
 			if (value < 0) {
-				if (!isError)
-					error(patch.src, patch.lineNo, "Exponent by negative");
-				isError = true;
+				if (!isError) {
+					error(patch.src, patch.lineNo, "Exponent by negative value %" PRId32, value);
+					isError = true;
+				}
 				popRPN(patch);
 				value = 0;
 			} else {
@@ -342,9 +345,17 @@ static int32_t computeRPNExpr(Patch const &patch, std::vector<Symbol> const &fil
 
 		case RPN_HRAM:
 			value = popRPN(patch);
-			if (!isError && (value < 0 || (value > 0xFF && value < 0xFF00) || value > 0xFFFF)) {
-				error(patch.src, patch.lineNo, "Value %" PRId32 " is not in HRAM range", value);
-				isError = true;
+			if (value < 0 || (value > 0xFF && value < 0xFF00) || value > 0xFFFF) {
+				if (!isError) {
+					error(
+					    patch.src,
+					    patch.lineNo,
+					    "Address $%" PRIx32 " for LDH is not in HRAM range",
+					    value
+					);
+					isError = true;
+				}
+				value = 0;
 			}
 			value &= 0xFF;
 			break;
@@ -354,9 +365,11 @@ static int32_t computeRPNExpr(Patch const &patch, std::vector<Symbol> const &fil
 			// Acceptable values are 0x00, 0x08, 0x10, ..., 0x38
 			// They can be easily checked with a bitmask
 			if (value & ~0x38) {
-				if (!isError)
-					error(patch.src, patch.lineNo, "Value %" PRId32 " is not a RST vector", value);
-				isError = true;
+				if (!isError) {
+					error(patch.src, patch.lineNo, "Value $%" PRIx32 " is not a RST vector", value);
+					isError = true;
+				}
+				value = 0;
 			}
 			value |= 0xC7;
 			break;
diff --git a/test/link/ldh-bad.asm b/test/link/ldh-bad.asm
new file mode 100644
index 00000000..2bd5912e
--- /dev/null
+++ b/test/link/ldh-bad.asm
@@ -0,0 +1,2 @@
+SECTION "bad", ROM0
+	ldh [$1234+@], a
diff --git a/test/link/ldh-bad.out b/test/link/ldh-bad.out
new file mode 100644
index 00000000..1103de1e
--- /dev/null
+++ b/test/link/ldh-bad.out
@@ -0,0 +1,2 @@
+error: ldh-bad.asm(2): Address $1234 for LDH is not in HRAM range
+Linking failed with 1 error
diff --git a/test/link/rst-bad.out b/test/link/rst-bad.out
index e315a01b..283eac92 100644
--- a/test/link/rst-bad.out
+++ b/test/link/rst-bad.out
@@ -1,2 +1,2 @@
-error: rst-bad.asm(2): Value 1 is not a RST vector
+error: rst-bad.asm(2): Value $1 is not a RST vector
 Linking failed with 1 error