riyyi
/
garbage
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Emulator: Fix non-prefix rotate opcodes

master
Riyyi 2 years ago
parent
8f016b1095
commit
80c68035c5
1 changed files with 4 additions and 4 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 8
      src/cpu.cpp

8
src/cpu.cpp
Unescape View File

@ -1241,7 +1241,7 @@ void CPU::ra()
m_cf = (m_a & 0x80) == 0x80; m_cf = (m_a & 0x80) == 0x80;
// Rotate register A left // Rotate register A left
m_a = (m_a >> 7) | (m_a << 1); m_a = ((m_a >> 7) | (m_a << 1)) & 0xff;
break; break;
case 0x0f: // RRCA case 0x0f: // RRCA
@ -1256,7 +1256,7 @@ void CPU::ra()
m_cf = (m_a & 0x1) == 0x1; m_cf = (m_a & 0x1) == 0x1;
// Rotate register A right // Rotate register A right
m_a = (m_a >> 1) | (m_a << 7); m_a = ((m_a >> 1) | (m_a << 7)) & 0xff;
break; break;
case 0x17: { // RLA case 0x17: { // RLA
@ -1272,7 +1272,7 @@ void CPU::ra()
m_cf = (m_a & 0x80) == 0x80; m_cf = (m_a & 0x80) == 0x80;
// Rotate register A left through carry // Rotate register A left through carry
m_a = old_carry | (m_a << 1); m_a = (old_carry | (m_a << 1)) & 0xff;
break; break;
} }
case 0x1f: { // RRA case 0x1f: { // RRA
@ -1289,7 +1289,7 @@ void CPU::ra()
m_cf = (m_a & 0x1) == 0x1; m_cf = (m_a & 0x1) == 0x1;
// Rotate register A right through carry // Rotate register A right through carry
m_a = (m_a >> 1) | (old_carry << 7); m_a = ((m_a >> 1) | (old_carry << 7)) & 0xff;
break; break;
} }
default: default:

Write Preview
Loading…
Cancel
Save