From 656b840e7f5ee0eff08729146c4fc797c63968e1 Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Wed, 30 Sep 2020 22:50:26 -0700
Subject: 6911 - comparing floats

It turns out floating-point operations set different flags than most instructions.
We have to branch on them using unsigned jumps.

https://stackoverflow.com/questions/7057501/x86-assembler-floating-point-compare/7057771#7057771
---
 014indirect_addressing.cc | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to '014indirect_addressing.cc')

diff --git a/014indirect_addressing.cc b/014indirect_addressing.cc
index fa679d6f..04b65215 100644
--- a/014indirect_addressing.cc
+++ b/014indirect_addressing.cc
@@ -538,7 +538,7 @@ void test_compare_mem_at_r32_with_r32_equal() {
 put_new(Name, "3b", "compare: set SF if r32 < rm32 (cmp)");
 
 :(code)
-void test_compare_r32_with_mem_at_r32_greater() {
+void test_compare_r32_with_mem_at_rm32_greater() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0x0a0b0c0d;
   run(
@@ -576,7 +576,7 @@ case 0x3b: {  // set SF if r32 < r/m32
 }
 
 :(code)
-void test_compare_r32_with_mem_at_r32_lesser_unsigned_and_signed() {
+void test_compare_r32_with_mem_at_rm32_lesser_unsigned_and_signed() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0x0a0b0c07;
   run(
@@ -595,7 +595,7 @@ void test_compare_r32_with_mem_at_r32_lesser_unsigned_and_signed() {
   );
 }
 
-void test_compare_r32_with_mem_at_r32_lesser_unsigned_and_signed_due_to_overflow() {
+void test_compare_r32_with_mem_at_rm32_lesser_unsigned_and_signed_due_to_overflow() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0x7fffffff;  // largest positive signed integer
   run(
@@ -614,7 +614,7 @@ void test_compare_r32_with_mem_at_r32_lesser_unsigned_and_signed_due_to_overflow
   );
 }
 
-void test_compare_r32_with_mem_at_r32_lesser_signed() {
+void test_compare_r32_with_mem_at_rm32_lesser_signed() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0xffffffff;  // -1
   run(
@@ -633,7 +633,7 @@ void test_compare_r32_with_mem_at_r32_lesser_signed() {
   );
 }
 
-void test_compare_r32_with_mem_at_r32_lesser_unsigned() {
+void test_compare_r32_with_mem_at_rm32_lesser_unsigned() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0x00000001;  // 1
   run(
@@ -652,7 +652,7 @@ void test_compare_r32_with_mem_at_r32_lesser_unsigned() {
   );
 }
 
-void test_compare_r32_with_mem_at_r32_equal() {
+void test_compare_r32_with_mem_at_rm32_equal() {
   Reg[EAX].i = 0x2000;
   Reg[EBX].i = 0x0a0b0c0d;
   run(
-- 
cgit 1.4.1-2-gfad0