1 files changed, 92 insertions, 0 deletions
diff --git a/emu/tests/test_cpu_6502.c b/emu/tests/test_cpu_6502.c
index 86fcc60..b926c1a 100644
--- a/emu/tests/test_cpu_6502.c
+++ b/emu/tests/test_cpu_6502.c
@@ -562,6 +562,95 @@ START_TEST( test_cpu_6502_inc_flags_zero )
 }
 END_TEST
 
+// ROL
+
+START_TEST( test_cpu_6502_rol_flags_accumulator_carry )
+{
+	INIT_CPU_TEST
+	
+	CODE_SET1( 0x2a ); // ROL
+
+	cpu.PS |= PS_C;
+	cpu.A = 0xf0;
+	
+	COPY_CPU_TEST
+	
+	cpu_6502_run( &cpu, 1 );
+	
+	PRINT_CPU_TEST
+	
+	ck_assert_int_eq( cpu.error_state, ERROR_STATE_OK );
+	ck_assert_int_eq( cpu.PC, before_cpu.PC+1 );
+	ck_assert_int_eq( cpu.SP, before_cpu.SP );
+	ck_assert_int_eq( cpu.PS & ~( PS_C | PS_N | PS_Z ), before_cpu.PS & ~( PS_C | PS_N | PS_Z ) );
+	ck_assert( cpu_6502_is_carry( &cpu ) );
+	ck_assert( !cpu_6502_is_zero( &cpu ) );
+	ck_assert( cpu_6502_is_negative( &cpu ) );
+	ck_assert_int_eq( cpu.A, 0xe1 );
+	ck_assert_int_eq( cpu.X, before_cpu.X );
+	ck_assert_int_eq( cpu.Y, before_cpu.Y );
+	ck_assert_mem_eq( ram.cell, before_ram.cell, ram.size );
+	
+	DEINIT_CPU_TEST
+}
+END_TEST
+
+// BCC
+
+START_TEST( test_cpu_6502_bcc_carry_clear )
+{
+	INIT_CPU_TEST
+	
+	CODE_SET2( 0x90, 0x12 ); // BCC $12
+
+	cpu.PS &= ~PS_C;
+	
+	COPY_CPU_TEST
+	
+	cpu_6502_run( &cpu, 1 );
+	
+	PRINT_CPU_TEST
+	
+	ck_assert_int_eq( cpu.error_state, ERROR_STATE_OK );
+	ck_assert_int_eq( cpu.PC, before_cpu.PC + 2 + 0x12 ); // carry is clear, jump taken
+	ck_assert_int_eq( cpu.SP, before_cpu.SP );
+	ck_assert_int_eq( cpu.PS, before_cpu.PS );
+	ck_assert_int_eq( cpu.A, before_cpu.A );
+	ck_assert_int_eq( cpu.X, before_cpu.X );
+	ck_assert_int_eq( cpu.Y, before_cpu.Y );
+	ck_assert_mem_eq( ram.cell, before_ram.cell, ram.size );
+	
+	DEINIT_CPU_TEST
+}
+END_TEST
+
+START_TEST( test_cpu_6502_bcc_carry_set )
+{
+	INIT_CPU_TEST
+	
+	CODE_SET2( 0x90, 0x12 ); // BCC $12
+
+	cpu.PS |= PS_C;
+	
+	COPY_CPU_TEST
+	
+	cpu_6502_run( &cpu, 1 );
+	
+	PRINT_CPU_TEST
+	
+	ck_assert_int_eq( cpu.error_state, ERROR_STATE_OK );
+	ck_assert_int_eq( cpu.PC, before_cpu.PC+2 ); // carry is set, execute next opcode, don't jump
+	ck_assert_int_eq( cpu.SP, before_cpu.SP );
+	ck_assert_int_eq( cpu.PS, before_cpu.PS );
+	ck_assert_int_eq( cpu.A, before_cpu.A );
+	ck_assert_int_eq( cpu.X, before_cpu.X );
+	ck_assert_int_eq( cpu.Y, before_cpu.Y );
+	ck_assert_mem_eq( ram.cell, before_ram.cell, ram.size );
+	
+	DEINIT_CPU_TEST
+}
+END_TEST
+
 // JMP
 
 START_TEST( test_cpu_6502_jmp_abs )
@@ -652,6 +741,9 @@ static Suite *make_cpu_6502_testsuite( void )
 	create_cpu_6502_testcase( suite, "INC (flags, positive)", test_cpu_6502_inc_flags_positive );
 	create_cpu_6502_testcase( suite, "INC (flags, negative)", test_cpu_6502_inc_flags_negative );
 	create_cpu_6502_testcase( suite, "INC (flags, zero)", test_cpu_6502_inc_flags_zero );
+	create_cpu_6502_testcase( suite, "ROL (flags, carry)", test_cpu_6502_rol_flags_accumulator_carry );
+	create_cpu_6502_testcase( suite, "BCC (branch taken, carry clear)", test_cpu_6502_bcc_carry_clear );
+	create_cpu_6502_testcase( suite, "BCC (branch not taken, carry set)", test_cpu_6502_bcc_carry_set );
 	create_cpu_6502_testcase( suite, "JMP (absolute)", test_cpu_6502_jmp_abs );
 	create_cpu_6502_testcase( suite, "JSR (absolute)", test_cpu_6502_jsr_abs );