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first public release

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This commit is contained in:
Viacheslav Kaloshin
2025-09-25 15:29:49 +03:00
parent 6f90fda7a7
commit 24702e4419
41 changed files with 34202 additions and 0 deletions
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scf_ccf_cpl_xy_test.go Normal file
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package z80
import "testing"
// Ensure SCF, CCF, CPL set X/Y from A (regression locks).
func TestSCF_CCF_CPL_XY_FromA(t *testing.T) {
cpu, mem, _ := testCPU()
// Make A have both X/Y set -> e.g., 0x28
loadProgram(cpu, mem, 0x0000, 0x3E, 0x28, 0x37, 0x3F, 0x2F) // LD A,28 ; SCF ; CCF ; CPL
mustStep(t, cpu) // LD
mustStep(t, cpu) // SCF
assertFlag(t, cpu, FLAG_X, true, "SCF X from A")
assertFlag(t, cpu, FLAG_Y, true, "SCF Y from A")
mustStep(t, cpu) // CCF
assertFlag(t, cpu, FLAG_X, true, "CCF X from A")
assertFlag(t, cpu, FLAG_Y, true, "CCF Y from A")
mustStep(t, cpu) // CPL (A becomes ^A)
assertFlag(t, cpu, FLAG_X, (cpu.A&FLAG_X) != 0, "CPL X from new A")
assertFlag(t, cpu, FLAG_Y, (cpu.A&FLAG_Y) != 0, "CPL Y from new A")
}