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;; BEGIN BOOTSTRAP
@opt stack_pointer RG
@opt csr_scratch RH
@use ext_std:*
@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
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_1
104
@label int_2
105
; <ast.FunctionDef object at 0x1032fef50>
@label func
; stack frame names: ['return_address_0', 'arg1', 'arg2', 'a']
addi SP 1 SP
; <ast.Assign object at 0x1032fee30>
; assigning a to stack segment + offset 7
; <ast.Name object at 0x1032fedd0> (arg1)
ldi vt_stack_addr RC
ldr RC RC
ldi 5 RD
add RC RD RC
ldr RC RC
spu RC
ldi vt_stack_addr RA
ldr RA RA
ldi 7 RB
add RA RB RA
spo RB
str RB RA
; <ast.Return object at 0x1032feda0>
ldi vt_stack_addr RA
ldr RA RA
ldi 4 RB
add RA RB RA
; <ast.Add object at 0x10301ab60>
; BinOp lhs <ast.BinOp object at 0x1032fed70>
; <ast.Name object at 0x1032fed40> (a)
ldi vt_stack_addr RC
ldr RC RC
ldi 7 RD
add RC RD RC
ldr RC RC
spu RC
; BinOp rhs <ast.BinOp object at 0x1032fed70>
; <ast.Name object at 0x1032fed10> (a)
ldi vt_stack_addr RC
ldr RC RC
ldi 7 RD
add RC RD RC
ldr RC RC
spu RC
spo RD
spo RC
add RC RD RC
spu RC
spo RB
mov RA SP
ldr RA RA
spu RB
; return from function
jpr RA
@label main
; stack frame names: ['i', 'graphics_mode_addr', 'text_mem_addr', 'b']
addi SP 4 SP
; <ast.Assign object at 0x103067b80>
; assigning graphics_mode_addr to stack segment + offset 1
; <ast.Call object at 0x1030677f0>
; Builtin call load [<ast.Name object at 0x103067fa0>]
; <ast.Name object at 0x103067fa0> (GRAPHICS_MODE_ADDR_P)
ldi graphics_mode_addr_p RC
ldr RC RC
spu RC
spo RC
ldr RC RC
spu RC
ldi vt_stack_addr RA
ldr RA RA
ldi 1 RB
add RA RB RA
spo RB
str RB RA
; <ast.Assign object at 0x103067790>
; assigning text_mem_addr to stack segment + offset 2
; <ast.Call object at 0x103067220>
; Builtin call load [<ast.Name object at 0x103067f40>]
; <ast.Name object at 0x103067f40> (TEXT_MEM_ADDR_P)
ldi text_mem_addr_p RC
ldr RC RC
spu RC
spo RC
ldr RC RC
spu RC
ldi vt_stack_addr RA
ldr RA RA
ldi 2 RB
add RA RB RA
spo RB
str RB RA
; <ast.Call object at 0x1030673d0>
; Builtin call store [<ast.Name object at 0x1032fefb0>, <ast.Name object at 0x1032fef80>]
; <ast.Name object at 0x1032fefb0> (graphics_mode_addr)
ldi vt_stack_addr RA
ldr RA RA
ldi 1 RB
add RA RB RA
ldr RA RA
spu RA
; <ast.Name object at 0x1032fef80> (TEXT_MODE)
ldi text_mode RA
ldr RA RA
spu RA
spo RB
spo RA
str RB RA
; <ast.Assign object at 0x1032fecb0>
; assigning b to stack segment + offset 3
; <ast.Call object at 0x1032fec50>
; Call function func
ldi 0 RC
spu RC
; <ast.Constant object at 0x1032febf0>
ldi 1 RC
spu RC
; <ast.Constant object at 0x1032febc0>
ldi 3 RC
spu RC
; set up return address and jump to subroutine
subi SP 3 RC
lpc RD
addi RD 3 RD
str RD RC
jpi func
ldi vt_stack_addr RA
ldr RA RA
ldi 3 RB
add RA RB RA
spo RB
str RB RA
; <ast.Assign object at 0x1032feb90>
; assigning i to stack segment + offset 0
; <ast.Constant object at 0x1032feb30>
ldi 0 RC
spu RC
ldi vt_stack_addr RA
ldr RA RA
ldi 0 RB
add RA RB RA
spo RB
str RB RA
; <ast.Call object at 0x1032fead0>
; Builtin call store [<ast.BinOp object at 0x1032fea40>, <ast.Call object at 0x1032fe9b0>]
; <ast.Add object at 0x10301ab60>
; BinOp lhs <ast.BinOp object at 0x1032fea40>
; <ast.Name object at 0x1032fea10> (text_mem_addr)
ldi vt_stack_addr RA
ldr RA RA
ldi 2 RB
add RA RB RA
ldr RA RA
spu RA
; BinOp rhs <ast.BinOp object at 0x1032fea40>
; <ast.Name object at 0x1032fe9e0> (i)
ldi vt_stack_addr RA
ldr RA RA
ldi 0 RB
add RA RB RA
ldr RA RA
spu RA
spo RB
spo RA
add RA RB RA
spu RA
; <ast.Call object at 0x1032fe9b0>
; Builtin call ord [<ast.Constant object at 0x1032fe920>]
; <ast.Constant object at 0x1032fe920>
ldi int_1 RA
ldr RA RA
spu RA
spo RB
spo RA
str RB RA
; <ast.Assign object at 0x1032fe8f0>
; assigning i to stack segment + offset 0
; <ast.Add object at 0x10301ab60>
; BinOp lhs <ast.BinOp object at 0x1032fe890>
; <ast.Name object at 0x1032fe860> (i)
ldi vt_stack_addr RC
ldr RC RC
ldi 0 RD
add RC RD RC
ldr RC RC
spu RC
; BinOp rhs <ast.BinOp object at 0x1032fe890>
; <ast.Constant object at 0x1032fe830>
ldi 1 RC
spu RC
spo RD
spo RC
add RC RD RC
spu RC
ldi vt_stack_addr RA
ldr RA RA
ldi 0 RB
add RA RB RA
spo RB
str RB RA
; <ast.Call object at 0x1032fe7d0>
; Builtin call store [<ast.BinOp object at 0x1032fe740>, <ast.Call object at 0x1032fe6b0>]
; <ast.Add object at 0x10301ab60>
; BinOp lhs <ast.BinOp object at 0x1032fe740>
; <ast.Name object at 0x1032fe710> (text_mem_addr)
ldi vt_stack_addr RA
ldr RA RA
ldi 2 RB
add RA RB RA
ldr RA RA
spu RA
; BinOp rhs <ast.BinOp object at 0x1032fe740>
; <ast.Name object at 0x1032fe6e0> (i)
ldi vt_stack_addr RA
ldr RA RA
ldi 0 RB
add RA RB RA
ldr RA RA
spu RA
spo RB
spo RA
add RA RB RA
spu RA
; <ast.Call object at 0x1032fe6b0>
; Builtin call ord [<ast.Constant object at 0x1032fe620>]
; <ast.Constant object at 0x1032fe620>
ldi int_2 RA
ldr RA RA
spu RA
spo RB
spo RA
str RB RA
; <ast.While object at 0x1032fe5f0>
@label while_test_3
; <ast.Constant object at 0x1032fe5c0>
ldi 1 RB
spu RB
spo RA
addi RA 0 RA
bri zero While_else_4
; <ast.Pass object at 0x1032fe590>
jpi While_test_3
@label while_else_4
@label while_end_5
subi SP 4 SP
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