Andrew Morton's Unix-hosted assembler/linker for the TMS34010, fetched from the gsptools archive and patched to build on x86-64. The K&R sources silently truncate pointers there: implicit int parameter declarations and fixed-argument printf wrappers. The patch fixes those and the flex 2.6 yy_init mismatch.
hello.as34.g is harness/hello-world/hello.asm in as34 syntax. as34/ld34 reproduce the GSPA-built payload byte-for-byte (82 bytes, md5 db91788991ebba476b55a11127a36475), and the MAME hello.lua run reports the same markers, the same 1024-word VRAM block and a byte-identical frame.
build.sh downloads the upstream tarball at build time (sha256 pinned); the tree is not vendored.
The 16-bit-displacement jump (low byte 0x00, two words) is JRcc, not the
three-word JAcc (low byte 0x80). Printing it as ja made linear
disassembly report the wrong control flow and made every such branch grow
by a word when reassembled.
Register 15 is the stack pointer in either file: 0x0F is A15 and 0x1F is
B15. The disassembler printed both as sp, hiding B-file stack-pointer
code. Print b15 when the R bit selects the B file.
Validated with the 1987 TI GSPA/GSPLNK/GSPROM round trip: the 32 KB region
at bit 3F208000 still reassembles byte-for-byte (md5
43adb6669571041985f3e26fd9ff7cb9), as do the 4 KB and 16 KB spans and the
0x8000/3F240000 region. The converter no longer needs its ja->jr or
sp->b15 rewrites (5 fixups -> 3); a whole-ROM diff contains only those two
output categories. The ROM is unchanged
(b46a3e442ccb86134d2356bd70d22fd2).
arti
SDD