Human folly for 02023-07-19

older newer index

• Armeabiport (wiki.debian.org):

  The so-called #ARM #EABI is the standard ABI for #Linux, supplanting the so-called OABI. Explains how system calls work in #asm. Also explains the checkered history of interworking. Debian architecture “armel” is EABI, “arm” is OABI, dropped in Squeeze.

• At5920399313 (web.archive.org):

  The #ARM #EABI was apparently introduced in 02007 or thereabouts.

• Ns9048137234 (web.archive.org):

  Oh, no, the #ARM #EABI is from 02003 and RealView 2.0 and later #GCC 4.1.0 and Linux 2.6.16.

• TN (web.archive.org):

  DEC WRL #paper TN-57, “Power Evaluation of Itsy Version 2.3”, on #power management for the #Itsy research prototype pocket Linux box, published October 02000.

• WRL TN (hpl.hp.com):

  #PDF #paper of DEC WRL TN-57, “Power Evaluation of Itsy Version 2.3”, on #power management for the #Itsy research prototype pocket Linux box, published October 02000, since I can no longer ftp to gatekeeper. Wow, things sure sucked back then: “According to the StrongARM SA-1100 manual [Int99] it takes approximately 160 ms to exit sleep mode (10 ms for the power to ramp up and 150 ms for the oscillator to stabilize) and 150 μs to enter it. The initialization software then takes about 1 ms,” and even deep-sleep mode was 5.4 milliwatts.

• (telecomtalk.info):

  #India has 4G cellphone coverage in 93% of its villages

• Viewpatch (arm.linux.org.uk):

  Since #Linux 2.6, #ARM system calls under the #EABI use the swi 0 or svc 0 instruction with the system call number in R7 and arguments in r0-r5, with 64-bit arguments starting in an even register. #asm

• Syscall (man7.org):

  In #Linux on #ARM in #EABI, the system call arguments are in registers r0-r6, and the return value is in registers r0 and r1. #asm

• (syscalls.w3challs.com):

  #Linux #ARM system call interface (for #EABI), with a table of system calls and arguments. #asm

• AOSP non obvious syscall implementation (stackoverflow.com):

  #Android #AOSP #ARM #asm for #Linux system calls

• ARM options (gcc.gnu.org):

  #GCC options for #ARM ABIs (-mabi=) are just apcs-gnu, atpcs, aapcs, aapcs-linux, and iwmmxt. But there's an option to reserve a register for PIC: -msingle-pic-base -mpic-register=r10.

• 0Htyw (archive.is):

  Tim Latimer and Jackk Norbeck's company Fervo's first EGS #geothermal #energy pilot plant finishes its 30-day 3.5-megawatt test run.

• Explainer (github.com):

  fuck, Google wants to lock down our browsers to force us to watch ads in the name of "web environment integrity"

• Ldmia instruction not working correctly on external SRAM in Cortex M4 (stackoverflow.com):

  #ARM #STM32 (specifically STM32L4xx/6xx, in this case STM32L486ZG) has a bug where it can't read a burst of 9 or more words from off-chip memory.

• ARM (upload.wikimedia.org):

  #ARM #asm addressing modes #PDF of lecture slides

• (dl.acm.org):

  a #PDF paper by Ted Kaehler about the #LOOM #Smalltalk #virtual-memory system, written in 01986, almost seven years later.

• Um cs (cs.purdue.edu):

  A #virtual-memory #Smalltalk using the "Mneme" persistent object store from UMass in 01990. #PDF #paper

• (dl.acm.org):

  #PDF #paper about the origins of #GemStone #Smalltalk

• Compcon arch (waltersmith.us):

  The Apple #Newton application architecture, inspired somewhat by #Smalltalk virtual memory systems like LOOM

• Ttyemu (github.com):

  ASR-33 #terminal emulator #retrocomputing