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328 lines
10 KiB
Kotlin
328 lines
10 KiB
Kotlin
package prog8tests
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import io.kotest.core.spec.style.FunSpec
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import io.kotest.matchers.ints.shouldBeGreaterThan
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import io.kotest.matchers.shouldBe
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import io.kotest.matchers.shouldNotBe
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import io.kotest.matchers.string.shouldContain
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import io.kotest.matchers.types.instanceOf
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import prog8.ast.IFunctionCall
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import prog8.ast.expressions.AddressOf
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import prog8.ast.expressions.IdentifierReference
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import prog8.code.target.C64Target
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import prog8tests.helpers.ErrorReporterForTests
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import prog8tests.helpers.compileText
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class TestTypecasts: FunSpec({
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test("correct evaluation of words in boolean expressions") {
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val text="""
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main {
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sub start() {
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uword camg
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ubyte @shared interlaced
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interlaced = (camg & ${'$'}0004) != 0
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interlaced++
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interlaced = (${'$'}0004 & camg) != 0
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interlaced++
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uword @shared ww
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ww = (camg & ${'$'}0004)
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ww++
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ww = (${'$'}0004 & camg)
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}
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}"""
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val result = compileText(C64Target(), false, text, writeAssembly = false)!!
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val stmts = result.program.entrypoint.statements
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stmts.size shouldBe 11
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}
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test("word to byte casts") {
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val text="""
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%import textio
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main {
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sub func(ubyte arg) -> word {
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return arg-99
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}
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sub start() {
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txt.print_ub(func(0) as ubyte)
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txt.print_uw(func(0) as ubyte)
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txt.print_w(func(0) as ubyte)
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}
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}"""
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val result = compileText(C64Target(), false, text, writeAssembly = false)!!
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val stmts = result.program.entrypoint.statements
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stmts.size shouldBe 3
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}
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test("add missing & to function arguments") {
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val text="""
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main {
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sub handler(uword fptr) {
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}
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sub start() {
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uword variable
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pushw(variable)
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pushw(handler)
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pushw(&handler)
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handler(variable)
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handler(handler)
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handler(&handler)
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}
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}"""
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val result = compileText(C64Target(), false, text, writeAssembly = false)!!
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val stmts = result.program.entrypoint.statements
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stmts.size shouldBe 8
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val arg1 = (stmts[2] as IFunctionCall).args.single()
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val arg2 = (stmts[3] as IFunctionCall).args.single()
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val arg3 = (stmts[4] as IFunctionCall).args.single()
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val arg4 = (stmts[5] as IFunctionCall).args.single()
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val arg5 = (stmts[6] as IFunctionCall).args.single()
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val arg6 = (stmts[7] as IFunctionCall).args.single()
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arg1 shouldBe instanceOf<IdentifierReference>()
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arg2 shouldBe instanceOf<AddressOf>()
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arg3 shouldBe instanceOf<AddressOf>()
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arg4 shouldBe instanceOf<IdentifierReference>()
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arg5 shouldBe instanceOf<AddressOf>()
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arg6 shouldBe instanceOf<AddressOf>()
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}
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test("correct typecasts") {
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val text = """
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%import floats
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main {
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sub start() {
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float @shared fl = 3.456
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uword @shared uw = 5555
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byte @shared bb = -44
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bb = uw as byte
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uw = bb as uword
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fl = uw as float
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fl = bb as float
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bb = fl as byte
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uw = fl as uword
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}
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}
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"""
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val result = compileText(C64Target(), false, text, writeAssembly = true)!!
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result.program.entrypoint.statements.size shouldBe 13
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}
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test("invalid typecasts of numbers") {
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val text = """
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%import floats
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main {
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sub start() {
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ubyte @shared bb
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bb = 5555 as ubyte
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routine(5555 as ubyte)
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}
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sub routine(ubyte bb) {
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bb++
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}
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}
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"""
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val errors = ErrorReporterForTests()
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compileText(C64Target(), false, text, writeAssembly = true, errors=errors) shouldBe null
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errors.errors.size shouldBe 2
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errors.errors[0] shouldContain "can't cast"
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errors.errors[1] shouldContain "can't cast"
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}
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test("refuse to round float literal 1") {
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val text = """
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%option enable_floats
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main {
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sub start() {
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float @shared fl = 3.456 as uword
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fl = 1.234 as uword
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}
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}"""
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val errors = ErrorReporterForTests()
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compileText(C64Target(), false, text, errors=errors) shouldBe null
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errors.errors.size shouldBe 2
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errors.errors[0] shouldContain "can't cast"
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errors.errors[1] shouldContain "can't cast"
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}
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test("refuse to round float literal 2") {
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val text = """
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%option enable_floats
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main {
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sub start() {
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float @shared fl = 3.456
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fl++
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fl = fl as uword
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}
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}"""
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val errors = ErrorReporterForTests()
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compileText(C64Target(), false, text, errors=errors) shouldBe null
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errors.errors.size shouldBe 1
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errors.errors[0] shouldContain "in-place makes no sense"
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}
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test("refuse to round float literal 3") {
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val text = """
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%option enable_floats
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main {
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sub start() {
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uword @shared ww = 3.456 as uword
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ww++
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ww = 3.456 as uword
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}
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}"""
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val errors = ErrorReporterForTests()
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compileText(C64Target(), false, text, errors=errors) shouldBe null
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errors.errors.size shouldBe 2
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errors.errors[0] shouldContain "can't cast"
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errors.errors[1] shouldContain "can't cast"
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}
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test("correct implicit casts of signed number comparison and logical expressions") {
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val text = """
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%import floats
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main {
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sub start() {
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byte bb = -10
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word ww = -1000
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if bb>0 {
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bb++
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}
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if bb < 0 {
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bb ++
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}
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if bb & 1 {
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bb++
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}
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if bb & 128 {
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bb++
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}
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if bb & 255 {
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bb++
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}
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if ww>0 {
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ww++
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}
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if ww < 0 {
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ww ++
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}
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if ww & 1 {
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ww++
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}
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if ww & 32768 {
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ww++
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}
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if ww & 65535 {
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ww++
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}
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}
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}
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"""
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val result = compileText(C64Target(), false, text, writeAssembly = true)!!
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val statements = result.program.entrypoint.statements
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statements.size shouldBe 27
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}
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test("cast to unsigned in conditional") {
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val text = """
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main {
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sub start() {
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byte bb
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word ww
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ubyte iteration_in_progress
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uword num_bytes
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if not iteration_in_progress or not num_bytes {
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num_bytes++
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}
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if bb as ubyte {
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bb++
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}
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if ww as uword {
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ww++
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}
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}
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}"""
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val result = compileText(C64Target(), false, text, writeAssembly = true)!!
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val statements = result.program.entrypoint.statements
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statements.size shouldBeGreaterThan 10
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}
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test("no infinite typecast loop in assignment asmgen") {
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val text = """
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main {
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sub start() {
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word @shared qq = calculate(33)
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}
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sub calculate(ubyte row) -> word {
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return (8-(row as byte))
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}
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}
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"""
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compileText(C64Target(), false, text, writeAssembly = true) shouldNotBe null
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}
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test("(u)byte extend to word parameters") {
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val text = """
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main {
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sub start() {
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byte ub1 = -50
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byte ub2 = -51
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byte ub3 = -52
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byte ub4 = 100
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word @shared ww = func(ub1, ub2, ub3, ub4)
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ww = func(ub4, ub2, ub3, ub1)
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ww=afunc(ub1, ub2, ub3, ub4)
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ww=afunc(ub4, ub2, ub3, ub1)
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}
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sub func(word x1, word y1, word x2, word y2) -> word {
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return x1
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}
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asmsub afunc(word x1 @R0, word y1 @R1, word x2 @R2, word y2 @R3) -> word @AY {
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%asm {{
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lda cx16.r0
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ldy cx16.r0+1
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rts
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}}
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}
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}"""
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compileText(C64Target(), true, text, writeAssembly = true) shouldNotBe null
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}
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test("lsb msb used as args with word types") {
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val text = """
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main {
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sub start() {
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uword xx=${'$'}ea31
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uword @shared ww = plot(lsb(xx), msb(xx))
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}
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inline asmsub plot(uword plotx @R0, uword ploty @R1) -> uword @AY{
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%asm {{
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lda cx16.r0
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ldy cx16.r1
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rts
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}}
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}
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}"""
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compileText(C64Target(), true, text, writeAssembly = true) shouldNotBe null
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}
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})
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