prog8/compiler/res/prog8lib/cx16/emudbg.p8
2023-10-13 00:55:56 +02:00

61 lines
1.8 KiB
Lua

; Emulator debug interface.
; Docs: https://github.com/X16Community/x16-emulator#debug-io-registers
emudbg {
const uword EMU_BASE = $9fb0
&ubyte EMU_DBG_HOTKEY_ENABLED = EMU_BASE + 0
&ubyte EMU_LOG_VIDEO = EMU_BASE + 1
&ubyte EMU_LOG_KEYBOARD = EMU_BASE + 2
&ubyte EMU_ECHO_MODE = EMU_BASE + 3
&ubyte EMU_SAVE_ON_EXIT = EMU_BASE + 4
&ubyte EMU_RECORD_GIF = EMU_BASE + 5
&ubyte EMU_RECORD_WAV = EMU_BASE + 6
&ubyte EMU_CMDKEYS_DISABLED = EMU_BASE + 7
&ubyte EMU_CPUCLK_L = EMU_BASE + 8 ; write: reset cpu clock to 0
&ubyte EMU_CPUCLK_M = EMU_BASE + 9 ; write: outputs "User debug 1: $xx"
&ubyte EMU_CPUCLK_H = EMU_BASE + 10 ; write: outputs "User debug 2: $xx"
&ubyte EMU_CPUCLK_U = EMU_BASE + 11 ; write: outputs as character to console
; 12 is unused for now
&ubyte EMU_KEYMAP = EMU_BASE + 13
&ubyte EMU_EMU_DETECT1 = EMU_BASE + 14
&ubyte EMU_EMU_DETECT2 = EMU_BASE + 15
sub is_emulator() -> bool {
; Test for emulator presence.
; It is recommended to only use the other debug routines if this returns true.
return EMU_EMU_DETECT1=='1' and EMU_EMU_DETECT2=='6'
}
asmsub console_write(str isoString @R0) clobbers(Y) {
%asm {{
ldy #0
- lda (cx16.r0),y
beq +
sta p8_EMU_CPUCLK_U
iny
bne -
+
}}
}
asmsub console_chrout(ubyte char @A) {
%asm {{
sta p8_EMU_CPUCLK_U
}}
}
asmsub console_value1(ubyte value @A) {
%asm {{
sta p8_EMU_CPUCLK_M
}}
}
asmsub console_value2(ubyte value @A) {
%asm {{
sta p8_EMU_CPUCLK_H
}}
}
}