From 468167fce9d64cb8f08832dd7586dd55f9200fb8 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Sat, 12 Mar 2022 09:47:04 -0800
Subject: Draw Base-10 Numbers Easier

---
 include/graphics/lfb.h |  3 +++
 include/lib/strings.h  |  1 +
 src/graphics/lfb.c     | 14 ++++++++++++++
 src/lib/strings.c      | 10 ++++++++++
 src/util/status.c      | 26 ++++++++------------------
 5 files changed, 36 insertions(+), 18 deletions(-)

diff --git a/include/graphics/lfb.h b/include/graphics/lfb.h
index 17c85ac..e8a7766 100644
--- a/include/graphics/lfb.h
+++ b/include/graphics/lfb.h
@@ -26,4 +26,7 @@ void draw_string(unsigned int lx, unsigned int ly, char* s);
 void draw_chex32(unsigned int lx, unsigned int ly, unsigned long val, unsigned int c);
 void draw_hex32(unsigned int lx, unsigned int ly, unsigned long val);
 
+unsigned long draw_cu10(unsigned int lx, unsigned int ly, unsigned long val, unsigned int c);
+unsigned long draw_u10(unsigned int lx, unsigned int ly, unsigned long val);
+
 #endif
diff --git a/include/lib/strings.h b/include/lib/strings.h
index dd77324..b4a945e 100644
--- a/include/lib/strings.h
+++ b/include/lib/strings.h
@@ -4,6 +4,7 @@
 #define string_t char*
 
 unsigned long strlen(string_t s);
+void strcpy(string_t src, string_t dest);
 unsigned char strcmp(string_t a, string_t b);
 unsigned char strcmpn(string_t a, string_t b, unsigned int n);
 char* u32_to_str(unsigned long value);
diff --git a/src/graphics/lfb.c b/src/graphics/lfb.c
index 8c9c395..7158afa 100644
--- a/src/graphics/lfb.c
+++ b/src/graphics/lfb.c
@@ -3,6 +3,7 @@
 #include <graphics/glyphs.h>
 #include <graphics/lfb.h>
 #include <graphics/mbox.h>
+#include <lib/strings.h>
 
 unsigned char *lfb;                         /* raw frame buffer address */
 
@@ -202,3 +203,16 @@ void draw_hex32(unsigned int lx, unsigned int ly, unsigned long val)
 {
 	draw_chex32(lx, ly, val, 0xFFFFFF);
 }
+
+unsigned long draw_cu10(unsigned int lx, unsigned int ly, unsigned long val, unsigned int c)
+{
+	string_t vals = u32_to_str(val);
+	unsigned long len = strlen(vals);
+	draw_cstring(lx, ly, vals, c);
+	return len;
+}
+
+unsigned long draw_u10(unsigned int lx, unsigned int ly, unsigned long val)
+{
+	return draw_cu10(lx, ly, val, 0xFFFFFF);
+}
diff --git a/src/lib/strings.c b/src/lib/strings.c
index 3155afa..674af19 100644
--- a/src/lib/strings.c
+++ b/src/lib/strings.c
@@ -10,6 +10,16 @@ unsigned long strlen(string_t s)
 	return len;
 }
 
+void strcpy(string_t src, string_t dest)
+{
+	unsigned long idx = 0;
+	while (src[idx] != 0) {
+		dest[idx] = src[idx];
+		idx++;
+	}
+	dest[idx] = src[idx];
+}
+
 unsigned char strcmp(string_t a, string_t b)
 {
 	unsigned long idx = 0;
diff --git a/src/util/status.c b/src/util/status.c
index 869fb40..f111251 100644
--- a/src/util/status.c
+++ b/src/util/status.c
@@ -73,33 +73,24 @@ void status(void)
 	// Output the frequency
 	draw_string(6, 3, "@");
 	unsigned long frq = read_cntfrq()/1000;
-	char* frq_str = u32_to_str(frq);
-	unsigned long fs_len = strlen(frq_str)+1;
-	draw_string(8, 3, frq_str);
+	unsigned long fs_len = draw_u10(8, 3, frq) + 1;
 	draw_string(8+fs_len, 3, "kHz");
 	// Output the value
 	unsigned long v = read_cntv_tval();
-	char* v_str = u32_to_str(v);
-	unsigned long vs_len = strlen(v_str) + 1;
-	draw_string(8+fs_len+4, 3, v_str);
+	unsigned long vs_len = draw_u10(8+fs_len+4, 3, v)+1;
 	draw_string(8+fs_len+4 +vs_len, 3, "                           ");
 	draw_letter(8+fs_len+4 +vs_len+1, 3, '|');
 	draw_hex32(8+fs_len+7+vs_len, 3, v);
 
 	// Video Status
 	draw_cstring(0, 4, "VIDEO", 0x00FF00);
-	char* gwidth_str;
-	gwidth_str = u32_to_str(gwidth);
-	unsigned long gs_len = strlen(gwidth_str) + 1;
-	draw_string(6, 4, gwidth_str);
-	draw_letter(6+gs_len-1, 4, 'x');
-	gwidth_str = u32_to_str(gheight);
-	unsigned long gs_len1 = strlen(gwidth_str) + 1;
-	draw_string(6+gs_len, 4, gwidth_str);
+	unsigned long gw_len = draw_u10(6, 4, gwidth);
+	unsigned long gh_len = draw_u10(6+gw_len+1, 4, gheight) + 1;
+	draw_letter(6+gw_len, 4, 'x');
 	if(gisrgb)
-		draw_string(6+gs_len+gs_len1, 4, "RGB");
+		draw_string(6+gw_len+gh_len + 1, 4, "RGB");
 	else
-		draw_string(6+gs_len+gs_len1, 4, "BGR");
+		draw_string(6+gw_len+gh_len + 1, 4, "BGR");
 
 	// Core Stacks
 	draw_string(0, 5, "SVC      IRQ      FIQ      User/SYS\n");
@@ -132,6 +123,5 @@ void status(void)
 	draw_hex32(19+14+8+1, 8, coren);
 	draw_string(19+14+9+8, 8, "|");
 	draw_string(19+14+18, 8, "           ");
-	char* t_str = u32_to_str(((unsigned long)tval)/1000000);
-	draw_string(19+14+18, 8, t_str);
+	draw_u10(19+14+18, 8, ((unsigned long)tval)/1000000);
 }
-- 
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