nes: add console with cpu bus and step loop

tests: run nestest through nes console

1 files changed, 2 insertions, 27 deletions

diff --git a/tests/nestest_test.go b/tests/nestest_test.go
index de98156..41bc6f8 100644
--- a/tests/nestest_test.go
+++ b/tests/nestest_test.go
@@ -8,34 +8,9 @@ import (
 	"testing"
 
 	"crecher.net/gones/v2/cart"
-	"crecher.net/gones/v2/cpu"
+	"crecher.net/gones/v2/nes"
 )
 
-type nestestBus struct {
-	ram  [0x0800]uint8
-	cart cart.Mapper
-}
-
-func (b *nestestBus) Read(addr uint16) uint8 {
-	switch {
-	case addr < 0x2000:
-		return b.ram[addr%0x0800]
-	case addr >= 0x4020:
-		return b.cart.CPURead(addr)
-	default:
-		return 0
-	}
-}
-
-func (b *nestestBus) Write(addr uint16, v uint8) {
-	switch {
-	case addr < 0x2000:
-		b.ram[addr%0x0800] = v
-	case addr >= 0x4020:
-		b.cart.CPUWrite(addr, v)
-	}
-}
-
 type cpuState struct {
 	pc             uint16
 	a, x, y, p, sp uint8
@@ -95,7 +70,7 @@ func TestNestest(t *testing.T) {
 		t.Fatal("no log lines parsed")
 	}
 
-	core := cpu.NewCPU(&nestestBus{cart: c.Mapper})
+	core := nes.New(c).CPU
 	core.PC = 0xC000
 	core.SP = 0xFD
 	core.Status = 0x24