From b6ac63225524f1b34ffc4f780726ed981ba7e6a2 Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jan@jantuomi.fi>
Date: Fri, 12 Apr 2024 22:28:40 +0300
Subject: Add "@include %bootstrap" directive format for including builtin
 bootstrap file

---
 resources/asm/bootstrap.atk16 | 78 -------------------------------------------
 1 file changed, 78 deletions(-)
 delete mode 100644 resources/asm/bootstrap.atk16

(limited to 'resources/asm/bootstrap.atk16')

diff --git a/resources/asm/bootstrap.atk16 b/resources/asm/bootstrap.atk16
deleted file mode 100644
index 9b024e6..0000000
--- a/resources/asm/bootstrap.atk16
+++ /dev/null
@@ -1,78 +0,0 @@
-@let SP              RH
-
-; vector table fields
-@let vector_table    0x10
-@let vt_ISR0         0x10 ; ISR0
-@let vt_ISR1         0x11 ; ISR1
-@let vt_ISR2         0x12 ; ISR2
-@let vt_ISR3         0x13 ; ISR3
-@let vt_stack_addr   0x14 ; Stack address
-@let vt_term_pp_addr 0x15 ; Terminal peripheral address
-@let vt_kb_pp_addr   0x16 ; Keyboard peripheral address
-@let vt_gr_mode_addr 0x17 ; Graphics mode setting address
-@let vt_sprite_mem   0x18 ; Sprite memory address
-@let vt_text_mem     0x19 ; Text memory buffer address
-
-; memory segments
-@let stack_segment   0x8000
-@let mmio_segment    0xE000
-@let terminal_addr   0xE000
-@let keyboard_addr   0xE001
-@let gr_mode_addr    0xE002
-@let sprite_mem      0xE800
-@let text_mem        0xF800 ; to 0xFFFF
-; note: sprite memory & text memory can use the same space
-; since they are never used at the same time
-
-; graphics mode settings
-@let gr_disabled_mode 0b00
-@let gr_text_mode     0b01
-@let gr_sprite_mode   0b10
-
-@address vector_table
-  keyboard_isr   ; 0x10
-  hlt_isr        ; 0x11
-  hlt_isr        ; 0x12
-  hlt_isr        ; 0x13
-  stack_segment  ; 0x14
-  terminal_addr  ; 0x15
-  keyboard_addr  ; 0x16
-  gr_mode_addr   ; 0x17
-  sprite_mem     ; 0x18
-  text_mem       ; 0x19
-
-@label hlt_isr
-  ldi 0x55 RE
-  hlt
-
-@label keyboard_isr
-  spu RA
-  spu RB
-  ldi vt_kb_pp_addr RA    ; RA := Keyboard peripheral address pointer
-  ldr RA RA               ; RA := Keyboard peripheral address deref
-  ldr RA RA               ; RA := <16-bit keyboard character code> from MMIO register
-  ldi vt_term_pp_addr RB  ; RB := Terminal peripheral address pointer
-  ldr RB RB               ; RB := Terminal peripheral address deref
-  str RA RB               ; terminal <- character code (ASCII?)
-  mov RA RE               ; RE := character code (for debugging)
-  spo RB
-  spo RA
-  rti
-@label program_segment
-
-; define short prelude that sets up vital instructions
-; NOTE: must be shorter than the vector table offset
-@address 0x0
-; set up stack pointer to point to beginning of stack segment
-  ldi vt_stack_addr RA
-  ldr RA SP
-  jpi program_segment
-
-@address program_segment
-; set graphics mode to disabled
-  ldi vt_gr_mode_addr RA
-  ldr RA RA
-  ldi gr_disabled_mode RB
-  str RB RA
-; jump to main (user defined)
-  jpi main
-- 
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