From 3cc036b7cd83d71bda371933f04b65a61104a52c Mon Sep 17 00:00:00 2001
From: Jasmine Iwanek <jasmine@iwanek.co.uk>
Date: Mon, 5 Jun 2023 00:41:00 -0400
Subject: [PATCH] Fix reports by CodeQL scanning

---
 src/video/vid_ati68860_ramdac.c |  2 +-
 src/video/vid_sigma.c           | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/video/vid_ati68860_ramdac.c b/src/video/vid_ati68860_ramdac.c
index 7df04001c..107b63039 100644
--- a/src/video/vid_ati68860_ramdac.c
+++ b/src/video/vid_ati68860_ramdac.c
@@ -253,7 +253,7 @@ ati68860_hwcursor_draw(svga_t *svga, int displine)
     uint32_t           col1 = ramdac->pallook[1];
 
     offset = svga->dac_hwcursor_latch.xoff;
-    for (uint8_t x = 0; x < 64 - svga->dac_hwcursor_latch.xoff; x += 4) {
+    for (uint32_t x = 0; x < 64 - svga->dac_hwcursor_latch.xoff; x += 4) {
         dat = svga->vram[svga->dac_hwcursor_latch.addr + (offset >> 2)];
         if (!(dat & 2))
             buffer32->line[displine][svga->dac_hwcursor_latch.x + x + svga->x_add] = (dat & 1) ? col1 : col0;
diff --git a/src/video/vid_sigma.c b/src/video/vid_sigma.c
index 01979deba..a8f946e25 100644
--- a/src/video/vid_sigma.c
+++ b/src/video/vid_sigma.c
@@ -419,7 +419,7 @@ sigma_text80(sigma_t *sigma)
 
     /* The Sigma 400 seems to use screen widths stated in words
        (40 for 80-column, 20 for 40-column) */
-    for (uint8_t x = 0; x < (sigma->crtc[1] << 1); x++) {
+    for (uint32_t x = 0; x < (sigma->crtc[1] << 1); x++) {
         chr        = vram[x << 1];
         attr       = vram[(x << 1) + 1];
         drawcursor = ((ma == ca) && sigma->con && sigma->cursoron);
@@ -474,7 +474,7 @@ sigma_text40(sigma_t *sigma)
 
     /* The Sigma 400 seems to use screen widths stated in words
        (40 for 80-column, 20 for 40-column) */
-    for (uint8_t x = 0; x < (sigma->crtc[1] << 1); x++) {
+    for (uint32_t x = 0; x < (sigma->crtc[1] << 1); x++) {
         chr        = vram[x << 1];
         attr       = vram[(x << 1) + 1];
         drawcursor = ((ma == ca) && sigma->con && sigma->cursoron);
@@ -512,7 +512,7 @@ sigma_gfx400(sigma_t *sigma)
     uint8_t        plane[4];
     uint8_t        col;
 
-    for (uint8_t x = 0; x < (sigma->crtc[1] << 1); x++) {
+    for (uint32_t x = 0; x < (sigma->crtc[1] << 1); x++) {
         plane[0] = vram[x];
         plane[1] = vram[0x8000 + x];
         plane[2] = vram[0x10000 + x];
@@ -540,7 +540,7 @@ sigma_gfx200(sigma_t *sigma)
     uint8_t        plane[4];
     uint8_t        col;
 
-    for (uint8_t x = 0; x < (sigma->crtc[1] << 1); x++) {
+    for (uint32_t x = 0; x < (sigma->crtc[1] << 1); x++) {
         plane[0] = vram[x];
         plane[1] = vram[0x8000 + x];
         plane[2] = vram[0x10000 + x];
@@ -566,7 +566,7 @@ sigma_gfx4col(sigma_t *sigma)
     uint8_t        mask;
     uint8_t        col;
 
-    for (uint8_t x = 0; x < (sigma->crtc[1] << 1); x++) {
+    for (uint32_t x = 0; x < (sigma->crtc[1] << 1); x++) {
         plane[0] = vram[x];
         plane[1] = vram[0x8000 + x];
         plane[2] = vram[0x10000 + x];