1 files changed, 91 insertions, 0 deletions

diff --git a/panic.asm b/panic.asm
new file mode 100644
index 0000000..5076174
--- /dev/null
+++ b/panic.asm
@@ -0,0 +1,91 @@
+jaspos.panic:
+	; Quick! Save state of registers before perhaps
+	; accidentally corrupting them while printing
+	push	sp
+	push	bp
+	push	di
+	push	si
+
+	push	gs
+	push	ss
+	push	es
+	push	ds
+	push	cs
+
+	push	dx
+	push	cx
+	push	bx
+	push	ax
+
+	push	msgPanic					; Show a panic message
+	call	jaspos_monitor_dispstring	; ... Then halt (see lines below)
+
+	push	msgAX
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgBX
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgCX
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgDX
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+
+	push	msgCS
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgDS
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgES
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgSS
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgGS
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+
+	push	msgSI
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgDI
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgBP
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+	push	msgSP
+	call	jaspos_monitor_dispstring
+	pop		ax
+	call	.printax
+
+	jmp		.end
+
+.printax:
+	mov		[free_ram + 4], byte 0
+	push	free_ram + 3
+	push	ax
+	call	jaspos_strutils_hex2str
+	push	msg0x
+	call	jaspos_monitor_dispstring
+	push	free_ram
+	call	jaspos_monitor_dispstring
+	ret
+
+.end:
\ No newline at end of file