mirror of
https://github.com/irmen/prog8.git
synced 2024-11-26 11:49:22 +00:00
Merge branch 'master' into remove_evalstack
# Conflicts: # compiler/res/prog8lib/cx16/gfx2.p8 # docs/source/todo.rst # examples/test.p8
This commit is contained in:
Irmen de Jong
commit
e1b6bb154a
@ -279,6 +279,46 @@ internal class AssignmentAsmGen(private val program: PtProgram,
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is PtPrefix -> {
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if(assign.target.array==null) {
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if(assign.source.datatype==assign.target.datatype) {
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if(assign.source.datatype in IntegerDatatypes) {
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val signed = assign.source.datatype in SignedDatatypes
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if(assign.source.datatype in ByteDatatypes) {
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assignExpressionToRegister(value.value, RegisterOrPair.A, signed)
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when(value.operator) {
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"+" -> {}
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"-" -> {
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if(asmgen.isTargetCpu(CpuType.CPU65c02))
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asmgen.out(" eor #255 | ina")
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else
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asmgen.out(" eor #255 | clc | adc #1")
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}
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"~" -> asmgen.out(" eor #255")
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"not" -> throw AssemblyError("not should have been replaced in the Ast by ==0")
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else -> throw AssemblyError("invalid prefix operator")
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}
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assignRegisterByte(assign.target, CpuRegister.A, signed)
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} else {
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assignExpressionToRegister(value.value, RegisterOrPair.AY, signed)
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when(value.operator) {
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"+" -> {}
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"-" -> {
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asmgen.out("""
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sec
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eor #255
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adc #0
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pha
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tya
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eor #255
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adc #0
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tay
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pla""")
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}
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"~" -> asmgen.out(" pha | tya | eor #255 | tay | pla | eor #255")
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"not" -> throw AssemblyError("not should have been replaced in the Ast by ==0")
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else -> throw AssemblyError("invalid prefix operator")
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}
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assignRegisterpairWord(assign.target, RegisterOrPair.AY)
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}
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} else {
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// First assign the value to the target then apply the operator in place on the target.
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// This saves a temporary variable
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translateNormalAssignment(
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@ -294,6 +334,7 @@ internal class AssignmentAsmGen(private val program: PtProgram,
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"not" -> throw AssemblyError("not should have been replaced in the Ast by ==0")
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else -> throw AssemblyError("invalid prefix operator")
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}
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}
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} else {
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// use a temporary variable
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val tempvar = if(value.type in ByteDatatypes) "P8ZP_SCRATCH_B1" else "P8ZP_SCRATCH_W1"
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@ -3419,6 +3460,13 @@ internal class AssignmentAsmGen(private val program: PtProgram,
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DataType.BYTE -> {
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when (target.kind) {
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TargetStorageKind.VARIABLE -> {
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if(asmgen.isTargetCpu(CpuType.CPU65c02))
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asmgen.out("""
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lda ${target.asmVarname}
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eor #255
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ina
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sta ${target.asmVarname}""")
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else
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asmgen.out("""
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lda #0
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sec
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@ -3432,7 +3480,6 @@ internal class AssignmentAsmGen(private val program: PtProgram,
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asmgen.out(" eor #255 | ina")
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else
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asmgen.out(" eor #255 | clc | adc #1")
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}
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RegisterOrPair.X -> asmgen.out(" txa | eor #255 | tax | inx")
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RegisterOrPair.Y -> asmgen.out(" tya | eor #255 | tay | iny")
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@ -13,13 +13,14 @@
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; SCREEN MODE LIST:
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; mode 0 = reset back to default text mode
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; mode 1 = bitmap 320 x 240 monochrome
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; mode 2 = bitmap 320 x 240 x 4c (TODO not yet implemented)
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; mode 3 = bitmap 320 x 240 x 16c (TODO not yet implemented)
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; mode 2 = bitmap 320 x 240 x 4c (not yet implemented: just use 256c, there's enough vram for that)
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; mode 3 = bitmap 320 x 240 x 16c (not yet implemented: just use 256c, there's enough vram for that)
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; mode 4 = bitmap 320 x 240 x 256c (like SCREEN $80 but using this api instead of kernal)
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; mode 5 = bitmap 640 x 480 monochrome
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; mode 6 = bitmap 640 x 480 x 4c
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; higher color dephts in highres are not supported due to lack of VRAM
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; TODO remove the phx/plx pairs in non-stack compiler version
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gfx2 {
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@ -46,7 +47,7 @@ gfx2 {
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height = 240
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bpp = 1
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}
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; TODO modes 2, 3 not yet implemented
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; TODO modes 2, 3
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4 -> {
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; lores 256c
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cx16.VERA_DC_VIDEO = (cx16.VERA_DC_VIDEO & %11001111) | %00100000 ; enable only layer 1
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@ -109,7 +110,7 @@ gfx2 {
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repeat 240/2/8
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cs_innerloop640()
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}
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; TODO mode 2, 3
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; TODO modes 2, 3
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4 -> {
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; lores 256c
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repeat 240/2
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@ -239,8 +240,7 @@ _done
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}}
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}
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6 -> {
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; highres 4c
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; TODO also mostly usable for lores 4c?
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; highres 4c ....also mostly usable for mode 2, lores 4c?
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color &= 3
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ubyte[4] colorbits
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ubyte ii
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@ -594,7 +594,7 @@ _done
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}}
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}
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}
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; TODO mode 2,3
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; TODO modes 2, 3
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4 -> {
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; lores 256c
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void addr_mul_24_for_lores_256c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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@ -646,8 +646,7 @@ _done
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}
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}
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6 -> {
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; highres 4c
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; TODO also mostly usable for lores 4c?
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; highres 4c ....also mostly usable for mode 2, lores 4c?
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void addr_mul_24_for_highres_4c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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cx16.r2L = lsb(x) & 3 ; xbits
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; color &= 3
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@ -701,7 +700,7 @@ _done
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+
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}}
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}
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; TODO mode 2 and 3
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; TODO modes 2, 3
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4 -> {
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; lores 256c
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void addr_mul_24_for_lores_256c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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@ -875,19 +874,18 @@ skip:
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}
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sub position(uword @zp x, uword y) {
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ubyte bank
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when active_mode {
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1 -> {
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; lores monochrome
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cx16.r0 = y*(320/8) + x/8
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cx16.vaddr(0, cx16.r0, 0, 1)
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}
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; TODO modes 2,3
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; TODO modes 2, 3
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4 -> {
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; lores 256c
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void addr_mul_24_for_lores_256c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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bank = lsb(cx16.r1)
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cx16.vaddr(bank, cx16.r0, 0, 1)
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cx16.r2L = cx16.r1L
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cx16.vaddr(cx16.r2L, cx16.r0, 0, 1)
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}
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5 -> {
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; highres monochrome
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@ -897,24 +895,16 @@ skip:
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6 -> {
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; highres 4c
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void addr_mul_24_for_highres_4c(y, x) ; 24 bits result is in r0 and r1L (highest byte)
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bank = lsb(cx16.r1)
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cx16.vaddr(bank, cx16.r0, 0, 1)
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cx16.r2L = cx16.r1L
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cx16.vaddr(cx16.r2L, cx16.r0, 0, 1)
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}
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}
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}
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sub position2(uword @zp x, uword y, bool also_port_1) {
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position(x, y)
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if also_port_1 {
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when active_mode {
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1, 5 -> cx16.vaddr(0, cx16.r0, 1, 1)
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; TODO modes 2, 3
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4, 6 -> {
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ubyte bank = lsb(cx16.r1)
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cx16.vaddr(bank, cx16.r0, 1, 1)
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}
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}
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}
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if also_port_1
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cx16.vaddr_clone(0)
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}
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inline asmsub next_pixel(ubyte color @A) {
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@ -986,48 +976,96 @@ skip:
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sub text(uword @zp x, uword y, ubyte color, uword sctextptr) {
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; -- Write some text at the given pixel position. The text string must be in screencode encoding (not petscii!).
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; You must also have called text_charset() first to select and prepare the character set to use.
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; NOTE: in monochrome (1bpp) screen modes, x position is currently constrained to multiples of 8 ! TODO allow per-pixel horizontal positioning
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; TODO draw whole horizontal spans using vera auto increment if possible, instead of per-character columns
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uword chardataptr
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ubyte[8] @shared char_bitmap_bytes_left
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ubyte[8] @shared char_bitmap_bytes_right
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when active_mode {
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1, 5 -> {
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; monochrome mode, either resolution
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cx16.r2 = 40
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if active_mode==5
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cx16.r2 = 80
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while @(sctextptr) {
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chardataptr = charset_addr + (@(sctextptr) as uword)*8
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cx16.vaddr(charset_bank, chardataptr, 1, 1)
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position(x,y)
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cx16.r3 = sctextptr
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while @(cx16.r3) {
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chardataptr = charset_addr + @(cx16.r3) * $0008
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; copy the character bitmap into RAM
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cx16.vaddr_autoincr(charset_bank, chardataptr, 0, 1)
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%asm {{
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lda cx16.VERA_ADDR_H
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and #%111 ; don't auto-increment, we have to do that manually because of the ora
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sta cx16.VERA_ADDR_H
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lda color
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; pre-shift the bits
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phx ; TODO remove in non-stack version
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lda text.x
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and #7
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sta P8ZP_SCRATCH_B1
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ldy #8
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- lda P8ZP_SCRATCH_B1
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bne + ; white color, plot normally
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lda cx16.VERA_DATA1
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eor #255 ; black color, keep only the other pixels
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and cx16.VERA_DATA0
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bra ++
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+ lda cx16.VERA_DATA0
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ldy #0
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- lda cx16.VERA_DATA0
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stz P8ZP_SCRATCH_REG
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ldx P8ZP_SCRATCH_B1
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cpx #0
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beq +
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- lsr a
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ror P8ZP_SCRATCH_REG
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dex
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bne -
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+ sta char_bitmap_bytes_left,y
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lda P8ZP_SCRATCH_REG
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sta char_bitmap_bytes_right,y
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iny
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cpy #8
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bne --
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plx ; TODO remove in non-stack version
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}}
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; left part of shifted char
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position2(x, y, true)
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set_autoincrs_mode1_or_5()
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if color {
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%asm {{
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ldy #0
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- lda char_bitmap_bytes_left,y
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ora cx16.VERA_DATA1
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+ sta cx16.VERA_DATA0
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lda cx16.VERA_ADDR_L
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clc
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adc cx16.r2
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sta cx16.VERA_ADDR_L
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bcc +
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inc cx16.VERA_ADDR_M
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+ inc x
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bne +
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inc x+1
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+ dey
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sta cx16.VERA_DATA0
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iny
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cpy #8
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bne -
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}}
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sctextptr++
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} else {
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%asm {{
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ldy #0
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- lda char_bitmap_bytes_left,y
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eor #255
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and cx16.VERA_DATA1
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sta cx16.VERA_DATA0
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iny
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cpy #8
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bne -
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}}
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}
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; right part of shifted char
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if lsb(x) & 7 {
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position2(x+8, y, true)
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set_autoincrs_mode1_or_5()
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if color {
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%asm {{
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ldy #0
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- lda char_bitmap_bytes_right,y
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ora cx16.VERA_DATA1
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sta cx16.VERA_DATA0
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iny
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cpy #8
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bne -
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}}
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} else {
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%asm {{
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ldy #0
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- lda char_bitmap_bytes_right,y
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eor #255
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and cx16.VERA_DATA1
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sta cx16.VERA_DATA0
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iny
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cpy #8
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bne -
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}}
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}
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||||
}
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cx16.r3++
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x += 8
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}
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||||
}
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4 -> {
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@ -1061,30 +1099,80 @@ skip:
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; hires 4c
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||||
; we're going to use a few cx16 registers to make sure every variable is in zeropage in the inner loop.
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cx16.r11L = color
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cx16.r8 = y
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while @(sctextptr) {
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chardataptr = charset_addr + (@(sctextptr) as uword)*8
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||||
cx16.vaddr(charset_bank, chardataptr, 1, true) ; for reading the chardata from Vera data channel 1
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||||
position(x, y) ; only calculated once, we update vera address in the loop instead
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cx16.VERA_ADDR_H &= $0f ; no auto increment
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||||
repeat 8 {
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||||
; TODO rewrite this inner loop partly in assembly:
|
||||
; requires expanding the charbits to 2-bits per pixel (based on color)
|
||||
; also it's way more efficient to draw whole horizontal spans instead of per-character
|
||||
cx16.r9L = cx16.VERA_DATA1 ; get the next 8 horizontal character bits
|
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cx16.r10L = cx16.VERA_DATA1 ; get the next 8 horizontal character bits
|
||||
cx16.r7 = x
|
||||
repeat 8 {
|
||||
cx16.r9L <<= 1
|
||||
if_cs
|
||||
plot(cx16.r7, cx16.r8, cx16.r11L)
|
||||
cx16.r7++
|
||||
cx16.r10L <<= 1
|
||||
if_cs {
|
||||
cx16.r2L = cx16.r7L & 3 ; xbits
|
||||
when cx16.r11L & 3 {
|
||||
1 -> cx16.r12L = gfx2.plot.shiftedleft_4c_1[cx16.r2L]
|
||||
2 -> cx16.r12L = gfx2.plot.shiftedleft_4c_2[cx16.r2L]
|
||||
3 -> cx16.r12L = gfx2.plot.shiftedleft_4c_3[cx16.r2L]
|
||||
else -> cx16.r12L = 0
|
||||
}
|
||||
cx16.r8++
|
||||
cx16.VERA_DATA0 = cx16.VERA_DATA0 & gfx2.plot.mask4c[cx16.r2L] | cx16.r12L
|
||||
}
|
||||
cx16.r7++
|
||||
if (cx16.r7 & 3) == 0 {
|
||||
; increment the pixel address by one
|
||||
%asm {{
|
||||
stz cx16.VERA_CTRL
|
||||
clc
|
||||
lda cx16.VERA_ADDR_L
|
||||
adc #1
|
||||
sta cx16.VERA_ADDR_L
|
||||
lda cx16.VERA_ADDR_M
|
||||
adc #0
|
||||
sta cx16.VERA_ADDR_M
|
||||
lda cx16.VERA_ADDR_H
|
||||
adc #0
|
||||
sta cx16.VERA_ADDR_H
|
||||
}}
|
||||
}
|
||||
}
|
||||
|
||||
; increment pixel address to the next line
|
||||
%asm {{
|
||||
stz cx16.VERA_CTRL
|
||||
clc
|
||||
lda cx16.VERA_ADDR_L
|
||||
adc #(640-8)/4
|
||||
sta cx16.VERA_ADDR_L
|
||||
lda cx16.VERA_ADDR_M
|
||||
adc #0
|
||||
sta cx16.VERA_ADDR_M
|
||||
lda cx16.VERA_ADDR_H
|
||||
adc #0
|
||||
sta cx16.VERA_ADDR_H
|
||||
}}
|
||||
}
|
||||
x+=8
|
||||
cx16.r8-=8
|
||||
sctextptr++
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub set_autoincrs_mode1_or_5() {
|
||||
; set autoincrements to go to next pixel row (40 or 80 increment)
|
||||
if active_mode==1 {
|
||||
cx16.VERA_CTRL = 0
|
||||
cx16.VERA_ADDR_H = cx16.VERA_ADDR_H & $0f | (11<<4)
|
||||
cx16.VERA_CTRL = 1
|
||||
cx16.VERA_ADDR_H = cx16.VERA_ADDR_H & $0f | (11<<4)
|
||||
} else {
|
||||
cx16.VERA_CTRL = 0
|
||||
cx16.VERA_ADDR_H = cx16.VERA_ADDR_H & $0f | (12<<4)
|
||||
cx16.VERA_CTRL = 1
|
||||
cx16.VERA_ADDR_H = cx16.VERA_ADDR_H & $0f | (12<<4)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
asmsub cs_innerloop640() clobbers(Y) {
|
||||
|
||||
@ -554,6 +554,25 @@ asmsub vaddr(ubyte bank @A, uword address @R0, ubyte addrsel @R1, byte autoIncrO
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub vaddr_clone(ubyte port @A) clobbers (A,X,Y) {
|
||||
; -- clones Vera addresses from the given source port to the other one.
|
||||
; leaves CTRL on the destination port.
|
||||
%asm {{
|
||||
sta VERA_CTRL
|
||||
ldx VERA_ADDR_L
|
||||
ldy VERA_ADDR_H
|
||||
phy
|
||||
ldy VERA_ADDR_M
|
||||
eor #1
|
||||
sta VERA_CTRL
|
||||
stx VERA_ADDR_L
|
||||
sty VERA_ADDR_M
|
||||
ply
|
||||
sty VERA_ADDR_H
|
||||
rts
|
||||
}}
|
||||
}
|
||||
|
||||
asmsub vaddr_autoincr(ubyte bank @A, uword address @R0, ubyte addrsel @R1, uword autoIncrAmount @R2) clobbers(A,Y) {
|
||||
; -- setup the VERA's data address register 0 or 1
|
||||
; including setting up optional auto increment amount.
|
||||
|
||||
@ -324,7 +324,8 @@ This way you can set the second character on the second row from the top like th
|
||||
An uword variable can be used in limited scenarios as a 'pointer' to a byte in memory at a specific,
|
||||
dynamic, location. You can use array indexing on a pointer variable to use it as a byte array at
|
||||
a dynamic location in memory: currently this is equivalent to directly referencing the bytes in
|
||||
memory at the given index. See also :ref:`pointervars_programming`
|
||||
memory at the given index. In contrast to a real array variable, the index value can be the size of a word.
|
||||
See also :ref:`pointervars_programming`
|
||||
|
||||
**LSB/MSB split word arrays:**
|
||||
For (u)word arrays, you can make the compiler layout the array in memory as two separate arrays,
|
||||
@ -445,7 +446,7 @@ without defining a memory mapped location, you can do so by enclosing the addres
|
||||
|
||||
This is the official syntax to 'dereference a pointer' as it is often named in other languages.
|
||||
You can actually also use the array indexing notation for this. It will be silently converted into
|
||||
the direct memory access expression as explained above. Note that this also means that unlike regular arrays,
|
||||
the direct memory access expression as explained above. Note that unlike regular arrays,
|
||||
the index is not limited to an ubyte value. You can use a full uword to index a pointer variable like this::
|
||||
|
||||
pointervar[999] = 0 ; set memory byte to zero at location pointervar + 999.
|
||||
|
||||
@ -414,7 +414,8 @@ directly access the memory. Enclose a numeric expression or literal with ``@(...
|
||||
@($d020) = 0 ; set the c64 screen border to black ("poke 53280,0")
|
||||
@(vic+$20) = 6 ; a dynamic expression to 'calculate' the address
|
||||
|
||||
The array indexing notation on a uword 'pointer variable' is syntactic sugar for such a direct memory access expression::
|
||||
The array indexing notation on a uword 'pointer variable' is syntactic sugar for such a direct memory access expression,
|
||||
and the index value can be larger than a byte in this case::
|
||||
|
||||
pointervar[999] = 0 ; equivalent to @(pointervar+999) = 0
|
||||
|
||||
@ -466,7 +467,7 @@ Syntax is familiar with brackets: ``arrayvar[x]`` ::
|
||||
|
||||
Note: you can also use array indexing on a 'pointer variable', which is basically an uword variable
|
||||
containing a memory address. Currently this is equivalent to directly referencing the bytes in
|
||||
memory at the given index. See :ref:`pointervars`
|
||||
memory at the given index (and allows index values of word size). See :ref:`pointervars`
|
||||
|
||||
String
|
||||
^^^^^^
|
||||
|
||||
@ -1,7 +1,8 @@
|
||||
TODO
|
||||
====
|
||||
|
||||
- IR: reduce the number of branch instructions (gradually), replace with CMP(I) + status branch instruction
|
||||
- IR: reduce the number of branch instructions such as BEQ, BEQR, etc (gradually), replace with CMP(I) + status branch instruction
|
||||
- IR: reduce amount of CMP/CMPI after instructions that set the status bits correctly (LOADs? INC? etc), but only after setting the status bits is verified!
|
||||
|
||||
...
|
||||
|
||||
@ -32,7 +33,6 @@ Compiler:
|
||||
- ir: the @split arrays are currently also split in _lsb/_msb arrays in the IR, and operations take multiple (byte) instructions that may lead to verbose and slow operation and machine code generation down the line.
|
||||
- ir: for expressions with array indexes that occur multiple times, can we avoid loading them into new virtualregs everytime and just reuse a single virtualreg as indexer? (simple form of common subexpression elimination)
|
||||
- PtAst/IR: more complex common subexpression eliminations
|
||||
- can we get rid of pieces of asmgen.AssignmentAsmGen by just reusing the AugmentableAssignment ? generated code should not suffer
|
||||
- [problematic due to using 64tass:] better support for building library programs, where unused .proc shouldn't be deleted from the assembly?
|
||||
Perhaps replace all uses of .proc/.pend/.endproc by .block/.bend will fix that with a compiler flag?
|
||||
But all library code written in asm uses .proc already..... (textual search/replace when writing the actual asm?)
|
||||
@ -46,8 +46,6 @@ Libraries:
|
||||
- fix the problems in atari target, and flesh out its libraries.
|
||||
- c128 target: make syslib more complete (missing kernal routines)?
|
||||
- c64: make the graphics.BITMAP_ADDRESS configurable (VIC banking)
|
||||
- optimize several inner loops in gfx2 even further?
|
||||
- actually implement modes 3 and perhaps even 2 to gfx2 (lores 16 color and 4 color)
|
||||
|
||||
|
||||
Optimizations:
|
||||
@ -64,15 +62,8 @@ STRUCTS again?
|
||||
What if we were to re-introduce Structs in prog8? Some thoughts:
|
||||
|
||||
- can contain only numeric types (byte,word,float) - no nested structs, no reference types (strings, arrays) inside structs
|
||||
- is just some syntactic sugar for a scoped set of variables -> ast transform to do exactly this before codegen. Codegen doesn't know about struct.
|
||||
- no arrays of struct -- because too slow on 6502 to access those, rather use struct of arrays instead.
|
||||
can we make this a compiler/codegen only issue? i.e. syntax is just as if it was an array of structs?
|
||||
or make it explicit in the syntax so that it is clear what the memory layout of it is.
|
||||
- ability to assign struct variable to another? this is slow but can be quite handy sometimes.
|
||||
however how to handle this in a function that gets the struct passed as reference? Don't allow it there? (there's no pointer dereferencing concept in prog8)
|
||||
- ability to be passed as argument to a function (by reference)?
|
||||
however there is no typed pointer in prog8 at the moment so this can't be implemented in a meaningful way yet,
|
||||
because there is no way to reference it as the struct type again. (current ast gets the by-reference parameter
|
||||
type replaced by uword)
|
||||
So-- maybe don't replace the parameter type in the ast? Should fix that for str and array types as well then
|
||||
|
||||
- only as a reference type (uword pointer). This removes a lot of the problems related to introducing a variable length value type.
|
||||
- arrays of struct is just an array of uword pointers. Can even be @split?
|
||||
- need to introduce typed pointer datatype in prog8
|
||||
- str is then syntactic sugar for pointer to character/byte?
|
||||
- arrays are then syntactic sugar for pointer to byte/word/float?
|
||||
|
||||
@ -175,7 +175,7 @@ widget {
|
||||
const ubyte height = 11
|
||||
widget.highlightedrect(x+widget.window_close_icon.width, y, width-64, height, true, active)
|
||||
gfx2.plot(x+widget.window_close_icon.width, y+height-1, 1) ; correct bottom left corner
|
||||
gfx2.text(x+32, y+1, 1, titlestr)
|
||||
gfx2.text(x+26, y+1, 1, titlestr)
|
||||
widget.window_close_icon(x, y, active)
|
||||
widget.window_order_icon(x+width-22, y, active)
|
||||
widget.window_flipsize_icon(x+width-44, y, active)
|
||||
|
||||
@ -5,4 +5,4 @@ org.gradle.daemon=true
|
||||
kotlin.code.style=official
|
||||
javaVersion=11
|
||||
kotlinVersion=1.9.0
|
||||
version=9.2-SNAPSHOT
|
||||
version=9.2
|
||||
|
||||
Loading…
Reference in New Issue
Block a user