mirror of
https://github.com/irmen/prog8.git
synced 2024-12-12 12:29:11 +00:00
87 lines
2.8 KiB
Lua
87 lines
2.8 KiB
Lua
; Emulator debug interface.
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; Docs: https://github.com/X16Community/x16-emulator/tree/d52f118ce893fa24c4ca021a0b8de46cb80e5ccf#emulator-io-registers
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emudbg {
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%option ignore_unused
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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
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&ubyte EMU_CPUCLK_M = EMU_BASE + 9
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&ubyte EMU_CPUCLK_H = EMU_BASE + 10
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&ubyte EMU_CPUCLK_U = EMU_BASE + 11
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&ubyte EMU_CPUCLK_RESET = EMU_BASE + 8 ; write: reset cpu clock to 0
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&ubyte EMU_DBGOUT1 = EMU_BASE + 9 ; write: outputs "User debug 1: $xx"
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&ubyte EMU_DBGOUT2 = EMU_BASE + 10 ; write: outputs "User debug 2: $xx"
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&ubyte EMU_CHROUT = 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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; Test for emulator presence.
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; It is recommended to only use the debug registers if this returns true.
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return EMU_EMU_DETECT1=='1' and EMU_EMU_DETECT2=='6'
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}
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sub console_write(str isoString) {
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; note: make sure the text is in Iso encoding.
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if is_emulator() {
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ubyte chr
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repeat {
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chr = @(isoString)
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if_z
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break
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EMU_CHROUT = chr
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isoString++
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}
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}
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}
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sub console_chrout(ubyte char) {
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; note: make sure the character is in Iso encoding.
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if is_emulator()
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EMU_CHROUT = char
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}
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sub console_value1(ubyte value) {
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if is_emulator()
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EMU_DBGOUT1 = value
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}
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sub console_value2(ubyte value) {
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if is_emulator()
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EMU_DBGOUT2 = value
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}
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sub reset_cpu_cycles() {
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if is_emulator()
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EMU_CPUCLK_L = 0
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}
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asmsub cpu_cycles() -> uword @R0, uword @R1 {
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; -- returns the 32 bits cpu clock counter in R1:R0,
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; returns lower 16 bits in R0, upper 16 bits in R1.
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%asm {{
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lda p8v_EMU_CPUCLK_L
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sta cx16.r0L
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lda p8v_EMU_CPUCLK_M
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sta cx16.r0H
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lda p8v_EMU_CPUCLK_H
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sta cx16.r1L
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lda p8v_EMU_CPUCLK_U
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sta cx16.r1H
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rts
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}}
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}
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}
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