GSP COFF Assembler, Version 2.00, 87.300 Sun Oct 18 15:08:14 2026 (c) Copyright 1985, 1987, Texas Instruments Inc. PAGE 1 0001 ; marker.asm -- loader acceptance app. 0002 ; 0003 ; Built by dwt/loader/build.sh with three separate sect 0004 ; .text 018C0000h (byte 0x318000) 0005 ; .data 018D0000h (byte 0x31A000) 0006 ; .bss 018D8000h (byte 0x31B000) 0007 ; 0008 ; It is the *COFF image* that the loader must place; it 0009 ; raw blob. The loader parses the COFF, copies .text a 0010 ; and calls create_process() with the image's entry poi 0011 ; 0012 ; Evidence cells (32-bit, bit addresses; outside every 0013 ; 018E0000 _start address at run time (must be 018C0 0014 ; 018E0020 d_magic read from .data (must be DEADBEE 0015 ; 018E0040 d_two read from .data (must be 1234567 0016 ; 018E0060 b_zero read from .bss (must be 0; the 0017 ; 018E0080 b_counter, incremented forever (proves th 0018 ; 0019 ; The harness pre-fills the whole .bss range with A5A5A 0020 ; a zero at 018E0060 is the loader's zero-fill, not a f 0021 0022 .def _start 0023 00000000 .text 0024 00000000 _start: 0025 00000000 0550 setf 16, 0, 0 0026 00000010 0740 setf 32, 0, 1 0027 0028 ; Run-time address of this code: position dependence, 0029 00000020 09E2 movi _start, a2, L 00000030 00000000' 0030 00000050 0782 move a2, @018E0000h, 1 00000060 018E0000 0031 0032 ; Initialised .data must have been copied by the loade 0033 00000080 07A0 move @d_magic, a0, 1 00000090 00000000" 0034 000000B0 0780 move a0, @018E0020h, 1 000000C0 018E0020 0035 0036 000000E0 07A1 move @d_two, a1, 1 000000F0 00000020" 0037 00000110 0781 move a1, @018E0040h, 1 00000120 018E0040 0038 0039 ; .bss must have been zeroed by the loader (harness pr 0040 00000140 07A3 move @b_zero, a3, 1 00000150 00000000+ 0041 00000170 0783 move a3, @018E0060h, 1 00000180 018E0060 0042 0043 ; A live counter: a created process, not a one-shot ju 0044 000001A0 4484 sub a4, a4 0045 000001B0 loop: 0046 000001B0 0B04 addi 1, a4 000001C0 0001 0047 000001D0 0784 move a4, @b_counter, 1 GSP COFF Assembler, Version 2.00, 87.300 Sun Oct 18 15:08:14 2026 (c) Copyright 1985, 1987, Texas Instruments Inc. PAGE 2 000001E0 00000020+ 0048 00000200 0784 move a4, @018E0080h, 1 00000210 018E0080 0049 00000230 09E5 movi 2000h, a5, L 00000240 00002000 0050 00000260 delay: 0051 00000260 3C25 dsjs a5, delay 0052 00000270 C0F3 jruc loop 0053 0054 ; Kept to leave a call in the image (and a relocation 0055 .global sub 0056 00000280 sub: 0057 00000280 0960 rets 0058 0059 00000000 .data 0060 00000000 DEADBEEF d_magic: .long 0DEADBEEFh 0061 00000020 12345678 d_two: .long 012345678h 0062 0063 00000000 .bss b_zero, 32, 1 0064 00000020 .bss b_counter, 32, 1 0065 0066 .end No Errors, No Warnings