From 656d36ed6971d12c668b19e609e8f25aba49cb88 Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Thu, 27 Oct 2022 20:44:48 +0200
Subject: Update screen_talk to handle screen_dei events

---
 src/main.c | 11 +++++++++--
 src/ppu.c  |  7 +++----
 src/ppu.h  |  4 ++--
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/main.c b/src/main.c
index 21bc2a7..06353e0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -133,7 +133,14 @@ system_talk(Device *d, u8 b0, u8 w) {
 IWRAM_CODE
 void
 screen_talk(Device *d, u8 b0, u8 w) {
-    if (w) {
+   if (!w) {
+        switch(b0) {
+            case 0x2: d->dat[b0] = (SCREEN_WIDTH >> 8); break;
+            case 0x3: d->dat[b0] = (SCREEN_WIDTH); break;
+            case 0x4: d->dat[b0] = (SCREEN_HEIGHT >> 8); break;
+            case 0x5: d->dat[b0] = (SCREEN_HEIGHT); break;
+        }
+    } else {
         switch (b0) {
             case 0x1: {
                 d->vector = mempeek16(d->dat, 0x0);
@@ -269,7 +276,7 @@ file_talk(Device *d, u8 b0, u8 w) {
 void
 init_uxn(Uxn *u) {
     // Initialize PPU.
-    initppu(&ppu, 30, 20, 0);
+    initppu(&ppu, 30, 20);
 
     // Enable sound.
     init_sound();
diff --git a/src/ppu.c b/src/ppu.c
index e1471ec..91694b7 100644
--- a/src/ppu.c
+++ b/src/ppu.c
@@ -425,12 +425,11 @@ update_cursor(u8 pos) {
 }
 
 int
-initppu(Ppu *p, u8 hor, u8 ver, u8 pad) {
+initppu(Ppu *p, u8 hor, u8 ver) {
     p->hor = hor;
     p->ver = ver;
-    p->pad = pad;
-    p->width = (8 * p->hor + p->pad * 2);
-    p->height = (8 * p->ver + p->pad * 2);
+    p->width = (8 * p->hor);
+    p->height = (8 * p->ver);
 
     // Initialize display mode and bg palette.
     DISP_CTRL = DISP_MODE_0 | DISP_BG_0 | DISP_BG_1 | DISP_OBJ;
diff --git a/src/ppu.h b/src/ppu.h
index b5eb250..f12e1a7 100644
--- a/src/ppu.h
+++ b/src/ppu.h
@@ -19,10 +19,10 @@ WITH REGARD TO THIS SOFTWARE.
 
 typedef struct Ppu {
 	u32 *bg, *fg;
-	u16 hor, ver, pad, width, height;
+	u16 hor, ver, width, height;
 } Ppu;
 
-int initppu(Ppu *p, u8 hor, u8 ver, u8 pad);
+int initppu(Ppu *p, u8 hor, u8 ver);
 void putcolors(u8 *addr);
 void ppu_pixel(u32 *layer, u16 x, u16 y, u8 color);
 void ppu_1bpp(u32 *layer, u16 x, u16 y, u8 *sprite, u8 color, u8 flipx, u8 flipy);
-- 
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