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Better testing for ROL/ROR

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This commit is contained in:
Peter Evans 2018-03-01 18:31:03 -06:00
parent 0949661b18
commit 0315eb33bf
1 changed files with 18 additions and 4 deletions
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22
tests/mos6502.bits.c
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@ -115,9 +115,16 @@ Test(mos6502_bits, ora)
Test(mos6502_bits, rol) Test(mos6502_bits, rol)
{ {
mos6502_handle_rol(cpu, 8); cpu->P = 0;
cr_assert_eq(cpu->A, 17); cpu->A = 0xff;
mos6502_handle_rol(cpu, cpu->A);
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
cr_assert_eq(cpu->A, 0xfe);
mos6502_handle_rol(cpu, cpu->A);
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
cr_assert_eq(cpu->A, 0xfd);
cpu->P = 0;
cpu->eff_addr = 234; cpu->eff_addr = 234;
mos6502_handle_rol(cpu, 128); mos6502_handle_rol(cpu, 128);
cr_assert_eq(mos6502_get(cpu, 234), 0); cr_assert_eq(mos6502_get(cpu, 234), 0);
@ -125,9 +132,16 @@ Test(mos6502_bits, rol)
Test(mos6502_bits, ror) Test(mos6502_bits, ror)
{ {
mos6502_handle_ror(cpu, 64); cpu->P = 0;
cr_assert_eq(cpu->A, 160); cpu->A = 0xff;
mos6502_handle_ror(cpu, cpu->A);
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
cr_assert_eq(cpu->A, 0x7f);
mos6502_handle_ror(cpu, cpu->A);
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
cr_assert_eq(cpu->A, 0xbf);
cpu->P = 0;
cpu->eff_addr = 123; cpu->eff_addr = 123;
mos6502_handle_ror(cpu, 1); mos6502_handle_ror(cpu, 1);
mos6502_handle_ror(cpu, 0); mos6502_handle_ror(cpu, 0);