From f2f186c3594a922e51abf25b24052c61f833a2bf Mon Sep 17 00:00:00 2001
From: Jacques Comeaux <jacquesrcomeaux@protonmail.com>
Date: Tue, 4 Jun 2024 19:28:25 -0500
Subject: Rename stage 0 editor

---
 hexedit/Makefile        | 22 ----------------------
 hexedit/hexedit.s       | 34 ----------------------------------
 hexedit/main.s          | 18 ------------------
 hexedit/pico_persist.ld | 13 -------------
 hexedit/uart.s          | 33 ---------------------------------
 5 files changed, 120 deletions(-)
 delete mode 100644 hexedit/Makefile
 delete mode 100644 hexedit/hexedit.s
 delete mode 100644 hexedit/main.s
 delete mode 100644 hexedit/pico_persist.ld
 delete mode 100644 hexedit/uart.s

(limited to 'hexedit')

diff --git a/hexedit/Makefile b/hexedit/Makefile
deleted file mode 100644
index dd70409..0000000
--- a/hexedit/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-all: build
-
-build: hexedit.uf2
-
-hexedit.uf2: hexedit.elf
-	../elf/elf2uf2 hexedit.elf hexedit.uf2
-
-objects = uart.o main.o hexedit.o
-
-hexedit.elf: $(objects)
-	arm-none-eabi-ld -T pico_persist.ld -o hexedit.elf $(objects) ../setup/setup.so
-	./checksum_pico_elf.py hexedit.elf
-
-$(objects): %.o: %.s
-	arm-none-eabi-as -o $@ $<
-
-clean:
-	rm hexedit.elf hexedit.uf2 *.o
-
-flash: hexedit.uf2
-	[ -h /dev/disk/by-label/RPI-RP2 ] || sleep 3s
-	cat hexedit.uf2 > /dev/disk/by-label/RPI-RP2
diff --git a/hexedit/hexedit.s b/hexedit/hexedit.s
deleted file mode 100644
index 0800a3a..0000000
--- a/hexedit/hexedit.s
+++ /dev/null
@@ -1,34 +0,0 @@
-.syntax unified
-.cpu cortex-m0plus
-.thumb
-
-.equ SRAM_BASE, 0x20000000
-
-.type hexedit, %function
-.global hexedit
-
-hexedit:
-  ldr r6, =SRAM_BASE
-  adds r5, r6, 1
-10:
-  movs r4, 0
-20:
-  bl uart_recv
-  cmp r0, '\r
-  beq 30f
-  cmp r0, 'G
-  beq 40f
-  bl uart_send
-  subs r0, '0
-  lsls r4, 3
-  adds r4, r0
-  b 20b
-30:
-  bl uart_send
-  movs r0, '\n
-  bl uart_send
-  strh r4, [r6]
-  adds r6, 2
-  b 10b
-40:
-  bx r5
diff --git a/hexedit/main.s b/hexedit/main.s
deleted file mode 100644
index a12b4b3..0000000
--- a/hexedit/main.s
+++ /dev/null
@@ -1,18 +0,0 @@
-.syntax unified
-.cpu cortex-m0plus
-.thumb
-
-.section .entry, "ax"
-
-.type main, %function
-.global main
-
-main:
-  bl start_xosc
-  bl setup_clocks
-  bl setup_gpio
-  bl setup_uart
-  b hexedit
-
-.section .stage_2_crc
-.word 0x00000000
diff --git a/hexedit/pico_persist.ld b/hexedit/pico_persist.ld
deleted file mode 100644
index 9c37aba..0000000
--- a/hexedit/pico_persist.ld
+++ /dev/null
@@ -1,13 +0,0 @@
-MEMORY {
-  FLASH(rx) : ORIGIN = 0x10000000, LENGTH = 2M
-  SRAM(rx) : ORIGIN = 0x20041f00, LENGTH = 256
-}
-
-SECTIONS {
-  .text : {
-    *(.entry);
-    *(.text);
-    . = 252;
-    *(.stage_2_crc);
-  } >SRAM AT>FLASH
-}
diff --git a/hexedit/uart.s b/hexedit/uart.s
deleted file mode 100644
index e79cbdc..0000000
--- a/hexedit/uart.s
+++ /dev/null
@@ -1,33 +0,0 @@
-.syntax unified
-.cpu cortex-m0plus
-.thumb
-
-.equ UART0_BASE, 0x40034000
-.equ UARTDR_OFST,     0x00
-.equ UARTFR_OFST,     0x18
-
-.type uart_send, %function
-.global uart_send
-
-uart_send:
-  ldr r1, =UART0_BASE
-  movs r3, 0b1 << 5 // TX FIFO full
-1:
-  ldr r2, [r1, UARTFR_OFST]
-  tst r2, r3
-  bne 1b
-  strb r0, [r1, UARTDR_OFST]
-  bx lr
-
-.type uart_recv, %function
-.global uart_recv
-
-uart_recv:
-  ldr r1, =UART0_BASE
-  movs r3, 0b1 << 4 // RX FIFO empty
-1:
-  ldr r2, [r1, UARTFR_OFST]
-  tst r2, r3
-  bne 1b
-  ldrb r0, [r1, UARTDR_OFST]
-  bx lr
-- 
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