From 7a8d2bcd75d88a5429937bf551878c55e1dcf0fd Mon Sep 17 00:00:00 2001
From: Melodi <62381002+Melodi17@users.noreply.github.com>
Date: Wed, 6 Aug 2025 22:36:34 +1000
Subject: moved everything to seperate projects, and started compiler work +
 push and pop instructions added

---
 ROMs/.DS_Store                | Bin 6148 -> 6148 bytes
 ROMs/font copy.bin            | Bin 32768 -> 0 bytes
 ROMs/font.bin                 | Bin 32768 -> 2048 bytes
 ROMs/hello_c.asm              |   7 +++++++
 ROMs/hello_c.c                |   4 ++++
 ROMs/hello_c.q1               | Bin 0 -> 22 bytes
 ROMs/hello_world.asm          |  42 ++++++++++++++++++++++++++++++++++++++++++
 ROMs/hello_world.dat          |  33 ---------------------------------
 ROMs/hello_world.q1           | Bin 32842 -> 2151 bytes
 ROMs/write_display_direct.asm |  21 +++++++++++++++++++++
 ROMs/write_display_direct.dat |  21 ---------------------
 11 files changed, 74 insertions(+), 54 deletions(-)
 delete mode 100644 ROMs/font copy.bin
 create mode 100644 ROMs/hello_c.asm
 create mode 100644 ROMs/hello_c.c
 create mode 100644 ROMs/hello_c.q1
 create mode 100644 ROMs/hello_world.asm
 delete mode 100644 ROMs/hello_world.dat
 create mode 100644 ROMs/write_display_direct.asm
 delete mode 100644 ROMs/write_display_direct.dat

(limited to 'ROMs')

diff --git a/ROMs/.DS_Store b/ROMs/.DS_Store
index 523af33..775e323 100644
Binary files a/ROMs/.DS_Store and b/ROMs/.DS_Store differ
diff --git a/ROMs/font copy.bin b/ROMs/font copy.bin
deleted file mode 100644
index 88e4a93..0000000
Binary files a/ROMs/font copy.bin and /dev/null differ
diff --git a/ROMs/font.bin b/ROMs/font.bin
index 88e4a93..89f2af5 100644
Binary files a/ROMs/font.bin and b/ROMs/font.bin differ
diff --git a/ROMs/hello_c.asm b/ROMs/hello_c.asm
new file mode 100644
index 0000000..292b99a
--- /dev/null
+++ b/ROMs/hello_c.asm
@@ -0,0 +1,7 @@
+_main:
+ADD 1, 2
+SUB 4, 1
+MUL AX, AX
+MOV AX, V0
+RET
+
diff --git a/ROMs/hello_c.c b/ROMs/hello_c.c
new file mode 100644
index 0000000..46eab8d
--- /dev/null
+++ b/ROMs/hello_c.c
@@ -0,0 +1,4 @@
+int main() 
+{
+    return (1 + 2) * (4 - 1);
+}
\ No newline at end of file
diff --git a/ROMs/hello_c.q1 b/ROMs/hello_c.q1
new file mode 100644
index 0000000..deffc80
Binary files /dev/null and b/ROMs/hello_c.q1 differ
diff --git a/ROMs/hello_world.asm b/ROMs/hello_world.asm
new file mode 100644
index 0000000..1d812fb
--- /dev/null
+++ b/ROMs/hello_world.asm
@@ -0,0 +1,42 @@
+.org $1FFF
+JMP program
+
+font:
+    .include "font.bin"
+
+program:
+    MOV 0, V0 ; Load character #12
+    MOV 0, V1 ; X position
+    MOV 0, V2 ; Y position
+    MOV 1, V3 ; Color (1 = white)
+    CALL write_char ; Call function to write character
+    SUS
+
+write_char:
+    ; V0: Character to write
+    ; V1: X position
+    ; V2: Y position
+    ; V3: Color
+    ; Write a character to the screen at (V1, V2) with color V3
+    
+    MUL V0, 64 ; V0 = Character * 64 (character size)
+    MOV AX, V0 ; Store result back into character
+    
+    MUL V2, 64
+    ADD AX, V1
+    MOV AX, V4 ; V4 = X position + Y position * 64 (screen index)
+    
+    MOV V4, [$EFFF] ; Debug
+    
+    MOV [V0 + $2003], V5 ; Read character (1FFF + 4 since jump address is 1FFF)
+    MOV V5, [$EFFF] ; Debug
+    AND V5, $01 ; Mask to get first bit (color)
+    MOV DX, V5
+    MOV V5, [$EFFF] ; Debug
+    MUL V5, V3 ; V5 = Character * Color (color index)
+    MOV AX, V5 ; Store result into V5
+    
+    MOV V5, [$EFFF] ; Debug
+    
+    MOVB V5, [V4 + $402F] ; Write character to screen memory
+    RET
\ No newline at end of file
diff --git a/ROMs/hello_world.dat b/ROMs/hello_world.dat
deleted file mode 100644
index 6cdacff..0000000
--- a/ROMs/hello_world.dat
+++ /dev/null
@@ -1,33 +0,0 @@
-.org $1FFF
-JMP program
-
-font:
-    .include "font.bin"
-
-program:
-    MOV 13, V0 ; Load character #12
-    MOV 0, V1 ; X position
-    MOV 0, V2 ; Y position
-    MOV 1, V3 ; Color (1 = white)
-    CALL write_char ; Call function to write character
-    SUS
-
-write_char:
-    ; V0: Character to write
-    ; V1: X position
-    ; V2: Y position
-    ; V3: Color
-    ; Write a character to the screen at (V1, V2) with color V3
-    
-    MUL V0, 64 ; V0 = Character * 64 (character size)
-    MOV AX, V0 ; Store result back into character
-    
-    MUL V2, 64
-    ADD AX, V1
-    MOV AX, V4 ; V4 = X position + Y position * 64 (screen index)
-    
-    MOV [V0 + $1FFF], V5 ; Read character
-    MUL V5, V3 ; V5 = Character * Color (color index)
-    MOV AX, V5 ; Store result into V5
-    MOV V5, [V4 + $3FFF] ; Write character to screen memory
-    RET
\ No newline at end of file
diff --git a/ROMs/hello_world.q1 b/ROMs/hello_world.q1
index 4c1b1cd..fd66ffe 100644
Binary files a/ROMs/hello_world.q1 and b/ROMs/hello_world.q1 differ
diff --git a/ROMs/write_display_direct.asm b/ROMs/write_display_direct.asm
new file mode 100644
index 0000000..9fde417
--- /dev/null
+++ b/ROMs/write_display_direct.asm
@@ -0,0 +1,21 @@
+.org $1FFF
+
+program:
+MOV $0000, V0
+MUL 32, 64 ; Set AX to 32 * 64
+MOV AX, V1 ; Copy AX to V1
+MOV 1, V2 ; Color value 1
+
+reset:
+MOV 0, V0
+INC V2 ; Increment color value
+
+draw:
+GT V0, V1 ; V0 > V1?
+BZ        ; If number exceeds, branch to reset
+JMP reset
+
+MOVB V2, [V0+$402F] ; Set pixel at V0 to color 6
+INC V0 ; Increment V0
+
+JMP draw ; Repeat drawing
\ No newline at end of file
diff --git a/ROMs/write_display_direct.dat b/ROMs/write_display_direct.dat
deleted file mode 100644
index 9fde417..0000000
--- a/ROMs/write_display_direct.dat
+++ /dev/null
@@ -1,21 +0,0 @@
-.org $1FFF
-
-program:
-MOV $0000, V0
-MUL 32, 64 ; Set AX to 32 * 64
-MOV AX, V1 ; Copy AX to V1
-MOV 1, V2 ; Color value 1
-
-reset:
-MOV 0, V0
-INC V2 ; Increment color value
-
-draw:
-GT V0, V1 ; V0 > V1?
-BZ        ; If number exceeds, branch to reset
-JMP reset
-
-MOVB V2, [V0+$402F] ; Set pixel at V0 to color 6
-INC V0 ; Increment V0
-
-JMP draw ; Repeat drawing
\ No newline at end of file
-- 
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