From 549901c85044b6ccd912688d6be007c2fdacc6c6 Mon Sep 17 00:00:00 2001 From: Jan Tuomi Date: Tue, 20 Feb 2024 16:55:14 +0200 Subject: Refactor dir structure --- asm/test_py_src.atk16 | 301 -------------------------------------------------- 1 file changed, 301 deletions(-) delete mode 100644 asm/test_py_src.atk16 (limited to 'asm/test_py_src.atk16') diff --git a/asm/test_py_src.atk16 b/asm/test_py_src.atk16 deleted file mode 100644 index c38d1ca..0000000 --- a/asm/test_py_src.atk16 +++ /dev/null @@ -1,301 +0,0 @@ -;; BEGIN BOOTSTRAP - -@use ext_std:* - -@let sp RH ; stack pointer (points to empty slot at top of stack) -@let fp RG ; frame pointer (points to base of currently active frame) - -@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 - -@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 - -@let gr_disabled_mode 0b00 -@let gr_text_mode 0b01 -@let gr_sprite_mode 0b10 - -@address 0x0 - ldi vt_stack_addr RA - ldr RA SP - mov SP FP - jpi program_segment - -@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 - ldr RA RA - ldr RA RA - ldi vt_term_pp_addr RB - ldr RB RB - str RA RB - spo RB - spo RA - rti - -@label program_segment - ldi vt_gr_mode_addr RA - ldr RA RA - ldi gr_disabled_mode RB - str RB RA - - jpi main - -;; END BOOTSTRAP - -@label text_mode - 1 -@label graphics_mode_addr_p - 23 -@label text_mem_addr_p - 25 -@label int_0 - 65 -@label int_6 - 26 - -; -@label nth_letter -; stack frame with offsets -; n 0 -; -; -; BinOp lhs -; -; Builtin call ord [] -; - ldi int_0 RC - ldr RC RC ; int_0 = 65 - spu RC -; BinOp rhs -; (n) - ldi 0 RC - add FP RC RC - ldr RC RC - spu RC - spo RD - spo RC - add RC RD RC - spu RC -; return value is on top of stack -; return from function - subi FP 1 FP - ldr FP RB - jpr RB - -@label main -; stack frame with offsets -; graphics_mode_addr 0 -; text_mem_addr 1 -; i 2 - addi SP 3 SP -; -; assigning graphics_mode_addr at FP + 0 -; evaluating value to be assigned -; -; Builtin call load [] -; (GRAPHICS_MODE_ADDR_P) - ldi graphics_mode_addr_p RC - ldr RC RC - spu RC -; (load) dereferencing top of stack - spo RC - ldr RC RC - spu RC -; assigning stack address (FP + 0) := top of stack - spo RA - ldi 0 RB - add RB FP RB - str RA RB -; -; assigning text_mem_addr at FP + 1 -; evaluating value to be assigned -; -; Builtin call load [] -; (TEXT_MEM_ADDR_P) - ldi text_mem_addr_p RC - ldr RC RC - spu RC -; (load) dereferencing top of stack - spo RC - ldr RC RC - spu RC -; assigning stack address (FP + 1) := top of stack - spo RA - ldi 1 RB - add RB FP RB - str RA RB -; -; Builtin call store [, ] -; (graphics_mode_addr) - ldi 0 RA - add FP RA RA - ldr RA RA - spu RA -; (TEXT_MODE) - ldi text_mode RA - ldr RA RA - spu RA - spo RB - spo RA - str RB RA - ldi 0 RA - spu RA -; popping free-standing Expr result from stack - spo RA -; -; assigning i at FP + 2 -; evaluating value to be assigned -; - ldi 0 RC - spu RC -; assigning stack address (FP + 2) := top of stack - spo RA - ldi 2 RB - add RB FP RB - str RA RB -; -@label while_test_1 -; -; (i) - ldi 2 RB - add FP RB RB - ldr RB RB - spu RB -; - ldi int_6 RB - ldr RB RB ; int_6 = 26 - spu RB -; Comparing - spo RC - spo RB - sub RB RC RB - bri carry Compare_true_4 - ldi 0 RB - spu RB - jpi Compare_end_5 -@label compare_true_4 - ldi 1 RB - spu RB -@label compare_end_5 - spo RA - addi RA 0 RA - bri zero While_else_2 -; -; Builtin call store [, ] -; -; BinOp lhs -; (text_mem_addr) - ldi 1 RA - add FP RA RA - ldr RA RA - spu RA -; BinOp rhs -; (i) - ldi 2 RA - add FP RA RA - ldr RA RA - spu RA - spo RB - spo RA - add RA RB RA - spu RA -; -; Call function nth_letter - spu FP - ldi 0 RA - spu RA -; (i) - ldi 2 RA - add FP RA RA - ldr RA RA - spu RA - subi SP 2 FP -; set up return address and jump to subroutine - lpc RA - addi RA 4 RA - str RA FP - addi FP 1 FP - jpi nth_letter - spo RA - mov FP SP - spo FP - spu RA - spo RB - spo RA - str RB RA - ldi 0 RA - spu RA -; popping free-standing Expr result from stack - spo RA -; -; assigning i at FP + 2 -; evaluating value to be assigned -; -; BinOp lhs -; (i) - ldi 2 RC - add FP RC RC - ldr RC RC - spu RC -; BinOp rhs -; - ldi 1 RC - spu RC - spo RD - spo RC - add RC RD RC - spu RC -; assigning stack address (FP + 2) := top of stack - spo RA - ldi 2 RB - add RB FP RB - str RA RB - jpi While_test_1 -@label while_else_2 -@label while_end_3 -; -@label while_test_7 -; - ldi 1 RB - spu RB - spo RA - addi RA 0 RA - bri zero While_else_8 -; - jpi While_test_7 -@label while_else_8 -@label while_end_9 - mov FP SP - hlt -- cgit v1.3