From 98b3e33a5590c3ff11f156997f8f2c45d8dc48e0 Mon Sep 17 00:00:00 2001
From: Kevin Petit <kevin.petit@arm.com>
Date: Tue, 16 May 2023 09:13:50 +0100
Subject: Replace uint6_t with int8_t

Add REQUIRE statements to constrain the range where needed.

Also fix a typo.

Change-Id: I281e6249d8951b4cb3ff19eaf199660bed3feac9
Signed-off-by: Kevin Petit <kevin.petit@arm.com>
---
 chapters/introduction.adoc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'chapters/introduction.adoc')

diff --git a/chapters/introduction.adoc b/chapters/introduction.adoc
index 66bc9bf..c0b0874 100644
--- a/chapters/introduction.adoc
+++ b/chapters/introduction.adoc
@@ -544,7 +544,7 @@ The values to achieve a scaling of 1.0 are shift=30, multiplier=1<<30 for apply_
 
 [source,c++]
 ----
-int32_t apply_scale_32(int32_t value, int32_t multiplier, uint6_t shift, bool_t double_round=false) {
+int32_t apply_scale_32(int32_t value, int32_t multiplier, int8_t shift, bool_t double_round=false) {
     REQUIRE(multiplier >= 0);
     REQUIRE(2 <= shift && shift <= 62);
     REQUIRE(value >= (-1 << (shift - 1)) && value < (1 << (shift - 1));
@@ -559,7 +559,7 @@ int32_t apply_scale_32(int32_t value, int32_t multiplier, uint6_t shift, bool_t
     return (int32_t)result;
 }
 
-int32_t apply_scale_16(int48_t value, int16_t multipler, uint6_t shift) {
+int32_t apply_scale_16(int48_t value, int16_t multipler, int8_t shift) {
     REQUIRE(multiplier >= 0);
     REQUIRE(2 <= shift && shift <= 62);
     int64_t round = (1 << (shift - 1));
@@ -576,7 +576,7 @@ In some functions, the multiplier and shift are combined into a scale_t structur
 ----
 typedef struct {
     int32_t multiplier;
-    uint6_t shift;
+    int8_t shift;
 } scale_t;
 ----
 
@@ -652,4 +652,4 @@ void generate_lookup_table(int16_t *table, int32_t (*reference)(int32_t))
 
 The following publications are referred to in this specification, or provide more information:
 
-. IEEE Std 754-2008, _IEEE Standard for Floating-point Arithmetic_, August 2008.
\ No newline at end of file
+. IEEE Std 754-2008, _IEEE Standard for Floating-point Arithmetic_, August 2008.
-- 
cgit v1.2.1

