[PATCH olang v1] codegen: x64: use the low bit register for 8 bits ops

[Carlos Maniero <carlos@maniero.me>]

There was some registers that was using the high bit instead.

Signed-off-by: Carlos Maniero <carlos@maniero.me>
---
 src/codegen_x86_64.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/codegen_x86_64.c b/src/codegen_x86_64.c
index 1951365..c4cef3c 100644
--- a/src/codegen_x86_64.c
+++ b/src/codegen_x86_64.c
@@ -967,7 +967,7 @@ get_reg_for(x86_64_register_type_t type, size_t bytes)
     switch (type) {
         case REG_ACCUMULATOR: {
             if (bytes <= 1) {
-                return "%ah";
+                return "%al";
             } else if (bytes <= 2) {
                 return "%ax";
             } else if (bytes <= 4) {
@@ -977,7 +977,7 @@ get_reg_for(x86_64_register_type_t type, size_t bytes)
         }
         case REG_BASE: {
             if (bytes <= 1) {
-                return "%bh";
+                return "%bl";
             } else if (bytes <= 2) {
                 return "%bx";
             } else if (bytes <= 4) {
@@ -987,7 +987,7 @@ get_reg_for(x86_64_register_type_t type, size_t bytes)
         }
         case REG_COUNTER: {
             if (bytes <= 1) {
-                return "%ch";
+                return "%cl";
             } else if (bytes <= 2) {
                 return "%cx";
             } else if (bytes <= 4) {
@@ -997,7 +997,7 @@ get_reg_for(x86_64_register_type_t type, size_t bytes)
         }
         case REG_DATA: {
             if (bytes <= 1) {
-                return "%dh";
+                return "%dl";
             } else if (bytes <= 2) {
                 return "%dx";
             } else if (bytes <= 4) {

base-commit: c01fa7cf444bdd2cc9d6befff462285783263413
-- 
2.46.1