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added "emudbg" library (cx16 only) to interface with the emulator
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Irmen de Jong
parent
a289b32053
commit
e505bf9ccf
58
compiler/res/prog8lib/cx16/emudbg.p8
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58
compiler/res/prog8lib/cx16/emudbg.p8
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@ -0,0 +1,58 @@
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; Emulator debug interface.
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; Docs: https://github.com/X16Community/x16-emulator#debug-io-registers
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emudbg {
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const uword EMU_BASE = $9fb0
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&ubyte EMU_DBG_HOTKEY_ENABLED = EMU_BASE + 0
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&ubyte EMU_LOG_VIDEO = EMU_BASE + 1
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&ubyte EMU_LOG_KEYBOARD = EMU_BASE + 2
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&ubyte EMU_ECHO_MODE = EMU_BASE + 3
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&ubyte EMU_SAVE_ON_EXIT = EMU_BASE + 4
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&ubyte EMU_RECORD_GIF = EMU_BASE + 5
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&ubyte EMU_RECORD_WAV = EMU_BASE + 6
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&ubyte EMU_CMDKEYS_DISABLED = EMU_BASE + 7
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&ubyte EMU_CPUCLK_L = EMU_BASE + 8 ; write: reset cpu clock to 0
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&ubyte EMU_CPUCLK_M = EMU_BASE + 9 ; write: outputs "User debug 1: $xx"
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&ubyte EMU_CPUCLK_H = EMU_BASE + 10 ; write: outputs "User debug 2: $xx"
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&ubyte EMU_CPUCLK_U = EMU_BASE + 11 ; write: outputs as character to console
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; 12 is unused for now
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&ubyte EMU_KEYMAP = EMU_BASE + 13
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&ubyte EMU_EMU_DETECT1 = EMU_BASE + 14
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&ubyte EMU_EMU_DETECT2 = EMU_BASE + 15
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sub is_emulator() -> bool {
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return EMU_EMU_DETECT1=='1' and EMU_EMU_DETECT2=='6'
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}
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asmsub console_write(str isoString @R0) clobbers(Y) {
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%asm {{
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ldy #0
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- lda (cx16.r0),y
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beq +
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sta p8_EMU_CPUCLK_U
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iny
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bne -
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+
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}}
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}
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asmsub console_chrout(ubyte char @A) {
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%asm {{
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sta p8_EMU_CPUCLK_U
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}}
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}
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asmsub console_value1(ubyte value @A) {
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%asm {{
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sta p8_EMU_CPUCLK_M
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}}
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}
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asmsub console_value2(ubyte value @A) {
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%asm {{
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sta p8_EMU_CPUCLK_H
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}}
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}
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}
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@ -4,7 +4,6 @@
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; https://docs.google.com/document/d/1q34uWOiM3Be2pnaHRVgSdHySI-qsiQWPTo_gfE54PTg/edit
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verafx {
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%option no_symbol_prefixing
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sub clear(ubyte vbank, uword vaddr, ubyte data, uword amountof32bits) {
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; use cached 4-byte write to quickly clear a portion of the video memory to a given byte value
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@ -435,6 +435,18 @@ On the other targets, it only contains the definition of the 16 memory mapped vi
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restore the values of all 16 virtual registers r0 - r15 from the buffer. Might be useful in an IRQ handler to avoid clobbering them.
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emudbg (cx16 only)
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-------------------
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X16Emu Emulator debug routines, for Cx16 only.
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Allows you to interface with the emulator's debug routines/registers.
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There's stuff like ``is_emulator`` to detect if running in the emulator,
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and ``console_write`` to write a (iso) string to the emulator's console (stdout) etc.
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Read the `source code <https://github.com/irmen/prog8/tree/master/compiler/res/prog8lib/cx16/emudbg.p8>`_
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to see what's in there.
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Information about the exposed debug registers is in the `emulator's documentation <https://github.com/X16Community/x16-emulator#debug-io-registers>`_.
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gfx2 (cx16 only)
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-----------------
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@ -1,7 +1,8 @@
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TODO
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====
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- add some routines to use the x16's emulator special addresses such as the stdout print register?
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- add verafx transparent writes enable/disable routines
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- add %option verafxmuls in block to enable transparent verafx muls use for that block only + add warning message to docs to not use it it in prg AND irq code
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- '>>=' can be used as an operator in an expression?? should only be augmented assignment!
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- [on branch: shortcircuit] investigate McCarthy evaluation again? this may also reduce code size perhaps for things like if a>4 or a<2 ....
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@ -1,102 +1,21 @@
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%import gfx2
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%import textio
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;%import math
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%import verafx
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%import emudbg
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%zeropage basicsafe
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%option no_sysinit
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main {
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sub start() {
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word w1 = -123
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word w2 = 222
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ubyte b2 = 222
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byte sb2 = 111
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txt.print_w(w1*w2)
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txt.nl()
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txt.print_w(w1*222)
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txt.nl()
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w1 = -123
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w1 *= 222
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= w2
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= (w2-1)
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= b2
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txt.print_w(w1)
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txt.nl()
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w1 = -123
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w1 *= sb2
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txt.print_w(w1)
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txt.print_ub(emudbg.is_emulator())
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txt.nl()
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emudbg.console_value1(123)
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emudbg.console_value2(222)
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for cx16.r0L in iso:"Hello debug console!\n"
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emudbg.console_chrout(cx16.r0L)
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gfx2.screen_mode(1)
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cbm.SETTIM(0,0,0)
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repeat 255 {
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gfx2.clear_screen()
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}
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uword time1 = cbm.RDTIM16()
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cbm.SETTIM(0,0,0)
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repeat 255 {
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verafx.clear(0, 0, %10101010, 2400)
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}
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uword time2 = cbm.RDTIM16()
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gfx2.screen_mode(0)
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txt.print_uw(time1)
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txt.spc()
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txt.print_uw(time2)
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txt.nl()
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; txt.print_uw(math.mul16_last_upper())
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; txt.nl()
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; uword value1=5678
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; uword value2=9999
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; uword result = value1*value2
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; uword upper16 = math.mul16_last_upper()
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; txt.print_uw(result)
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; txt.spc()
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; txt.print_uw(upper16)
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; txt.nl()
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; const word MULTIPLIER = 431
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;
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; ; verify results:
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; for value in -50 to 50 {
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; if value*MULTIPLIER != verafx.muls(value, MULTIPLIER) {
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; txt.print("verafx muls error\n")
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; sys.exit(1)
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; }
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; }
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;
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;
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; word value
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; txt.print("verafx muls...")
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; cbm.SETTIM(0,0,0)
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; for value in -50 to 50 {
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; repeat 250 void verafx.muls(value, MULTIPLIER)
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; }
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; txt.print_uw(cbm.RDTIM16())
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; txt.nl()
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;
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; txt.print("6502 muls...")
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; cbm.SETTIM(0,0,0)
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; for value in -50 to 50 {
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; repeat 250 cx16.r0s = value*MULTIPLIER
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; }
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; txt.print_uw(cbm.RDTIM16())
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; txt.nl()
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emudbg.console_write(iso:"Hello another message!\n")
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emudbg.EMU_DBG_HOTKEY_ENABLED=false
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}
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}
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