From 05e4614af434934ba66e2eeba17e70e7bd9a2f82 Mon Sep 17 00:00:00 2001
From: condret <condr3t@protonmail.com>
Date: Fri, 15 Nov 2024 04:44:29 +0100
Subject: [PATCH] Start working on esil stop and halt custom ops

---
 Makefile     |  7 +++++--
 gb/esil.c    | 25 +++++++++++++++++++++++++
 include/gb.h |  2 ++
 3 files changed, 32 insertions(+), 2 deletions(-)
 create mode 100644 gb/esil.c

diff --git a/Makefile b/Makefile
index 637145f..d80313b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 LDFLAGS = $(shell pkg-config --libs sdl2 r_util r_io)
 CFLAGS = -Wall -I include/ $(shell pkg-config --cflags sdl2 r_util r_io r_arch r_esil r_anal r_reg) 
 
-all: sdl/pixbuf.o io/timers.o io/mbc1.o io/mbc2.o io/joypad.o io/dma.o io/ppu.o io/interrupts.o
+all: sdl/pixbuf.o io/timers.o io/mbc1.o io/mbc2.o io/joypad.o io/dma.o io/ppu.o io/interrupts.o gb/esil.o
 
 sdl/pixbuf.o:
 	gcc -c sdl/pixbuf.c -o sdl/pixbuf.o $(CFLAGS)
@@ -27,5 +27,8 @@ io/ppu.o:
 io/interrupts.o:
 	gcc -c io/interrupts.c -o io/interrupts.o $(CFLAGS)
 
+gb/esil.o:
+	gcc -c gb/esil.c -o gb/esil.o $(CFLAGS)
+
 clean:
-	rm sdl/*.o && rm io/*.o
+	rm sdl/*.o && rm io/*.o && rm gb/*.o
diff --git a/gb/esil.c b/gb/esil.c
new file mode 100644
index 0000000..a9488fc
--- /dev/null
+++ b/gb/esil.c
@@ -0,0 +1,25 @@
+#include <gb.h>
+#include <r_esil.h>
+
+bool gb_custom_op_halt (REsil *esil) {
+	return true;
+}
+
+bool gb_custom_op_stop (REsil *esil) {
+	return true;
+}
+
+bool gb_esil_setup (GB *gb) {
+	if (!gb) {
+		return false;
+	}
+	gb->esil = r_esil_new (4096, 0, 1);
+	if (!gb->esil) {
+		return false;
+	}
+	r_esil_setup (gb->esil, gb->anal, false, false, false);
+	gb->esil->user = gb;
+	r_esil_set_op (gb->esil, "halt", gb_custom_op_halt, 0, 0, R_ESIL_OP_TYPE_CUSTOM);
+	r_esil_set_op (gb->esil, "stop", gb_custom_op_stop, 0, 0, R_ESIL_OP_TYPE_CUSTOM);
+	return true;
+}
diff --git a/include/gb.h b/include/gb.h
index b4522cc..b934450 100644
--- a/include/gb.h
+++ b/include/gb.h
@@ -251,4 +251,6 @@ extern RIOPlugin r_io_plugin_gb_mbc1;
 extern RIOPlugin r_io_plugin_gb_mbc2;
 extern RIOPlugin r_io_plugin_gb_joypad;
 
+bool gb_esil_setup (GB *gb);
+
 #endif