Organize files better and include binaries for assembly samples

36 files changed, 882 insertions, 0 deletions

diff --git a/assembly/fib/Makefile b/assembly/fib/Makefile
new file mode 100644
index 0000000..da333af
--- /dev/null
+++ b/assembly/fib/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt
+
+.PHONY: all dump load clean
+
+all: fib.hex
+
+fib.o: fib.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o fib.o fib.S
+
+fib.elf:  fib.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o fib.elf fib.o
+
+dump: fib.elf
+	riscv32-none-elf-objdump -d fib.elf
+
+fib.hex: fib.elf
+	riscv32-none-elf-objcopy -O ihex fib.elf fib.hex
+
+load: fib.hex
+	bash -c "wl-copy < fib.hex"
+
+clean:
+	rm -f fib.bin fib.elf fib.o
+
diff --git a/assembly/fib/fib.S b/assembly/fib/fib.S
new file mode 100644
index 0000000..e43195d
--- /dev/null
+++ b/assembly/fib/fib.S
@@ -0,0 +1,29 @@
+li t0,0
+li t1,1
+li t3,0x7fffffff
+loop:
+add t2,t1,t0
+mv t0,t1
+mv t1,t2
+li a7,1
+mv a0,t0
+ecall
+li a7,11
+li a0,0x0a
+ecall
+bltu t2,t3,loop
+
+li a0,0xa
+li a7,11
+ecall
+li a7,1
+rdinstret a0
+ecall
+la a0,instructions
+li a7,4
+ecall
+
+li a7,10
+ecall
+
+instructions: .asciz " instructions\n"
diff --git a/assembly/fib/fib.elf b/assembly/fib/fib.elf
new file mode 100755
index 0000000..2ebaf85
--- /dev/null
+++ b/assembly/fib/fib.elf
diff --git a/assembly/fib/fib.hex b/assembly/fib/fib.hex
new file mode 100644
index 0000000..38d958b
--- /dev/null
+++ b/assembly/fib/fib.hex
@@ -0,0 +1,7 @@
+:1000000081420543370E00807D1EB30353009A8260

+:100010001E838548168573000000AD48294573008E

+:100020000000E3E4C3FF2945AD48730000008548A4

+:10003000732520C07300000017050000130545015B

+:10004000914873000000A9487300000020696E7396

+:0C0050007472756374696F6E730A0000AF

+:00000001FF

diff --git a/assembly/fib/fib.o b/assembly/fib/fib.o
new file mode 100644
index 0000000..0e62572
--- /dev/null
+++ b/assembly/fib/fib.o
diff --git a/assembly/fib/rvcontroller.ld b/assembly/fib/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/fib/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/guessnum-random/Makefile b/assembly/guessnum-random/Makefile
new file mode 100644
index 0000000..62eda18
--- /dev/null
+++ b/assembly/guessnum-random/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt
+
+.PHONY: all dump load clean
+
+all: guessnum-random.hex
+
+guessnum-random.o: guessnum-random.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o guessnum-random.o guessnum-random.S
+
+guessnum-random.elf:  guessnum-random.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o guessnum-random.elf guessnum-random.o
+
+dump: guessnum-random.elf
+	riscv32-none-elf-objdump -d guessnum-random.elf
+
+guessnum-random.hex: guessnum-random.elf
+	riscv32-none-elf-objcopy -O ihex guessnum-random.elf guessnum-random.hex
+
+load: guessnum-random.hex
+	bash -c "wl-copy < guessnum-random.hex"
+
+clean:
+	rm -f guessnum-random.bin guessnum-random.elf guessnum-random.o
+
diff --git a/assembly/guessnum-random/guessnum-random.S b/assembly/guessnum-random/guessnum-random.S
new file mode 100644
index 0000000..0f890cd
--- /dev/null
+++ b/assembly/guessnum-random/guessnum-random.S
@@ -0,0 +1,126 @@
+restart:
+rdtime t3 # Get the time the program was started at
+
+li a7,11 # Print character
+li a0,0xa # \n
+ecall
+li t0,0 # Number of guesses
+
+# Get a random number for the player to guess
+li a7,128 # Get random integer
+li a0,1 # Lower bound = 1
+li a1,99 # Upper bound = 99
+ecall
+mv t1,a0 # Put the result in t1 where it's expected
+
+loop:
+# Increment number of guesses
+addi t0,t0,1
+
+# Prompt player to enter their guess
+li a7,4 # Write string
+la a0,prompt # 'Enter your guess' prompt address
+ecall
+
+# Read the player's guess
+li a7,5 # Read integer
+ecall
+mv t2,a0 # Store it in t2
+
+# Print it back out
+li a7,1 # Write integer
+ecall
+li a7,11 # Write character
+li a0,0xa # \n
+ecall
+
+# Replace it with a random number
+li a0,0 # Lower bound = 0
+li a1,100 # Upper bound = 100
+li a7,128 # Get random integer
+ecall
+mv t2,a0
+
+# Too low?
+blt t2,t1,toolow
+
+# Too high?
+blt t1,t2,toohigh
+
+# Otherwise it must be right
+j correct
+
+toolow:
+# Show too low message
+li a7,4 # Write string
+la a0,toolowmsg
+ecall
+j loop # Go back for the next guess
+
+toohigh:
+# Show too high message
+li a7,4 # Write string
+la a0,toohighmsg
+ecall
+j loop # Go back for the next guess
+
+correct:
+# Show congratulations message
+li a7,4 # Write string
+la a0,correctmsg
+ecall
+
+# Show number of guesses
+mv a0,t0 # Get the number of guesses
+li a7,1 # Write integer
+ecall
+
+# Add proper suffix depending on whether it should be plural or not
+li a7,4 # Write string
+la a0,guessesmsg # "guess"
+ecall
+li t2,1
+beq t0,t2,playagain # Leave it singular if it was 1
+la a0,guessespluralize # "es"
+ecall
+
+playagain:
+li a7,11 # Write character
+li a0,0xa # \n
+ecall
+# Show the number of seconds the player took
+rdtime t4 # Get the current time
+sub a0,t4,t3 # Subtract the start time
+li a7,1 # Write integer
+ecall
+li a7,4 # Write string
+la a0,seconds
+ecall
+
+li a7,11 # Print character
+li a0,0xa # \n
+ecall
+
+# Ask the user if they want to play again
+li a7,4 # Write string
+la a0,playagainmsg
+ecall
+li a7,12 # Read character
+ecall
+li a7,11 # Write character
+ecall
+li t0,0x6e # n
+bne a0,t0,restart
+
+li a7,10 # Exit program
+ecall
+
+
+prompt: .asciz "Enter your guess:\n> "
+toolowmsg: .asciz "Too low! Try again\n"
+toohighmsg: .asciz "Too high! Try again\n"
+correctmsg: .asciz "Correct!\nYou got it in:\n"
+guessesmsg: .asciz " guess"
+guessespluralize: .asciz "es"
+seconds: .asciz " seconds"
+playagainmsg: .asciz "Play again? [Y/n]"
diff --git a/assembly/guessnum-random/guessnum-random.elf b/assembly/guessnum-random/guessnum-random.elf
new file mode 100755
index 0000000..7b75725
--- /dev/null
+++ b/assembly/guessnum-random/guessnum-random.elf
diff --git a/assembly/guessnum-random/guessnum-random.hex b/assembly/guessnum-random/guessnum-random.hex
new file mode 100644
index 0000000..7d535d9
--- /dev/null
+++ b/assembly/guessnum-random/guessnum-random.hex
@@ -0,0 +1,26 @@
+:10000000732E10C0AD48294573000000814293084B

+:100010000008054593053006730000002A83850219

+:100020009148170500001305650E73000000954800

+:1000300073000000AA83854873000000AD4829457D

+:100040007300000001459305400693080008730003

+:100050000000AA8363C56300634B73000DA0914841

+:10006000170500001305D50B730000004DBF914824

+:10007000170500001305150C730000004DB79148DB

+:10008000170500001305650C7300000016858548F0

+:10009000730000009148170500001305950C7300CC

+:1000A0000000854363887200170500001305E50B07

+:1000B00073000000AD48294573000000F32E10C006

+:1000C0003385CE4185487300000091481705000034

+:1000D0001305D50973000000AD48294573000000E1

+:1000E0009148170500001305050973000000B14889

+:1000F00073000000AD48730000009302E006E311B6

+:1001000055F0A94873000000456E74657220796F40

+:1001100075722067756573733A0A3E2000546F6FDD

+:10012000206C6F77212054727920616761696E0AB3

+:1001300000546F6F206869676821205472792061CC

+:100140006761696E0A00436F7272656374210A59B0

+:100150006F7520676F7420697420696E3A0A0020F9

+:10016000677565737300657300207365636F6E64F4

+:100170007300506C617920616761696E3F205B5943

+:040180002F6E5D0081

+:00000001FF

diff --git a/assembly/guessnum-random/guessnum-random.o b/assembly/guessnum-random/guessnum-random.o
new file mode 100644
index 0000000..757d611
--- /dev/null
+++ b/assembly/guessnum-random/guessnum-random.o
diff --git a/assembly/guessnum-random/rvcontroller.ld b/assembly/guessnum-random/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/guessnum-random/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/guessnum/Makefile b/assembly/guessnum/Makefile
new file mode 100644
index 0000000..98b8d65
--- /dev/null
+++ b/assembly/guessnum/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt
+
+.PHONY: all dump load clean
+
+all: guessnum.hex
+
+guessnum.o: guessnum.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o guessnum.o guessnum.S
+
+guessnum.elf:  guessnum.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o guessnum.elf guessnum.o
+
+dump: guessnum.elf
+	riscv32-none-elf-objdump -d guessnum.elf
+
+guessnum.hex: guessnum.elf
+	riscv32-none-elf-objcopy -O ihex guessnum.elf guessnum.hex
+
+load: guessnum.hex
+	bash -c "wl-copy < guessnum.hex"
+
+clean:
+	rm -f guessnum.bin guessnum.elf guessnum.o
+
diff --git a/assembly/guessnum/guessnum.S b/assembly/guessnum/guessnum.S
new file mode 100644
index 0000000..8d5b2fb
--- /dev/null
+++ b/assembly/guessnum/guessnum.S
@@ -0,0 +1,119 @@
+restart:
+rdtime t3 # Get the time the program was started at
+
+li a7,11 # Print character
+li a0,0xa # \n
+ecall
+li t0,0 # Number of guesses
+
+# Get a random number for the player to guess
+li a7,128 # Get random integer
+li a0,1 # Lower bound = 1
+li a1,99 # Upper bound = 99
+ecall
+mv t1,a0 # Put the result in t1 where it's expected
+
+loop:
+# Increment number of guesses
+addi t0,t0,1
+
+# Prompt player to enter their guess
+li a7,4 # Write string
+la a0,prompt # 'Enter your guess' prompt address
+ecall
+
+# Read the player's guess
+li a7,5 # Read integer
+ecall
+mv t2,a0 # Store it in t2
+
+# Print it back out
+li a7,1 # Write integer
+ecall
+li a7,11 # Write character
+li a0,0xa # \n
+ecall
+
+# Too low?
+blt t2,t1,toolow
+
+# Too high?
+blt t1,t2,toohigh
+
+# Otherwise it must be right
+j correct
+
+toolow:
+# Show too low message
+li a7,4 # Write string
+la a0,toolowmsg
+ecall
+j loop # Go back for the next guess
+
+toohigh:
+# Show too high message
+li a7,4 # Write string
+la a0,toohighmsg
+ecall
+j loop # Go back for the next guess
+
+correct:
+# Show congratulations message
+li a7,4 # Write string
+la a0,correctmsg
+ecall
+
+# Show number of guesses
+mv a0,t0 # Get the number of guesses
+li a7,1 # Write integer
+ecall
+
+# Add proper suffix depending on whether it should be plural or not
+li a7,4 # Write string
+la a0,guessesmsg # "guess"
+ecall
+li t2,1
+beq t0,t2,playagain # Leave it singular if it was 1
+la a0,guessespluralize # "es"
+ecall
+
+playagain:
+li a7,11 # Write character
+li a0,0xa # \n
+ecall
+# Show the number of seconds the player took
+rdtime t4 # Get the current time
+sub a0,t4,t3 # Subtract the start time
+li a7,1 # Write integer
+ecall
+li a7,4 # Write string
+la a0,seconds
+ecall
+
+li a7,11 # Print character
+li a0,0xa # \n
+ecall
+
+# Ask the user if they want to play again
+li a7,4 # Write string
+la a0,playagainmsg
+ecall
+li a7,12 # Read character
+ecall
+li a7,11 # Write character
+ecall
+li t0,0x6e # n
+bne a0,t0,restart
+
+li a7,10 # Exit program
+ecall
+
+
+prompt: .asciz "Enter your guess:\n> "
+toolowmsg: .asciz "Too low! Try again\n"
+toohighmsg: .asciz "Too high! Try again\n"
+correctmsg: .asciz "Correct!\nYou got it in:\n"
+guessesmsg: .asciz " guess"
+guessespluralize: .asciz "es"
+seconds: .asciz " seconds"
+playagainmsg: .asciz "Play again? [Y/n]"
diff --git a/assembly/guessnum/guessnum.elf b/assembly/guessnum/guessnum.elf
new file mode 100755
index 0000000..e130c53
--- /dev/null
+++ b/assembly/guessnum/guessnum.elf
diff --git a/assembly/guessnum/guessnum.hex b/assembly/guessnum/guessnum.hex
new file mode 100644
index 0000000..d15f60d
--- /dev/null
+++ b/assembly/guessnum/guessnum.hex
@@ -0,0 +1,25 @@
+:10000000732E10C0AD48294573000000814293084B

+:100010000008054593053006730000002A83850219

+:100020009148170500001305650D73000000954801

+:1000300073000000AA83854873000000AD4829457D

+:100040007300000063C56300634B73000DA091480B

+:10005000170500001305D50B73000000C9B79148C0

+:10006000170500001305150C730000004DBF9148E3

+:10007000170500001305650C730000001685854800

+:10008000730000009148170500001305950C7300DC

+:100090000000854363887200170500001305E50B17

+:1000A00073000000AD48294573000000F32E10C016

+:1000B0003385CE4185487300000091481705000044

+:1000C0001305D50973000000AD48294573000000F1

+:1000D0009148170500001305050973000000B14899

+:1000E00073000000AD48730000009302E006E319BE

+:1000F00055F0A94873000000456E74657220796F51

+:1001000075722067756573733A0A3E2000546F6FED

+:10011000206C6F77212054727920616761696E0AC3

+:1001200000546F6F206869676821205472792061DC

+:100130006761696E0A00436F7272656374210A59C0

+:100140006F7520676F7420697420696E3A0A002009

+:10015000677565737300657300207365636F6E6404

+:100160007300506C617920616761696E3F205B5953

+:040170002F6E5D0091

+:00000001FF

diff --git a/assembly/guessnum/guessnum.o b/assembly/guessnum/guessnum.o
new file mode 100644
index 0000000..18672aa
--- /dev/null
+++ b/assembly/guessnum/guessnum.o
diff --git a/assembly/guessnum/rvcontroller.ld b/assembly/guessnum/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/guessnum/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/hello/Makefile b/assembly/hello/Makefile
new file mode 100644
index 0000000..d7649e5
--- /dev/null
+++ b/assembly/hello/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt
+
+.PHONY: all dump load clean
+
+all: hello.hex
+
+hello.o: hello.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o hello.o hello.S
+
+hello.elf:  hello.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o hello.elf hello.o
+
+dump: hello.elf
+	riscv32-none-elf-objdump -d hello.elf
+
+hello.hex: hello.elf
+	riscv32-none-elf-objcopy -O ihex hello.elf hello.hex
+
+load: hello.hex
+	bash -c "wl-copy < hello.hex"
+
+clean:
+	rm -f hello.bin hello.elf hello.o
+
diff --git a/assembly/hello/hello.S b/assembly/hello/hello.S
new file mode 100644
index 0000000..3eecf13
--- /dev/null
+++ b/assembly/hello/hello.S
@@ -0,0 +1,6 @@
+la a0,message
+li a7,4
+ecall
+li a7,10
+ecall
+message: .asciz "Hello, world!\n"
diff --git a/assembly/hello/hello.elf b/assembly/hello/hello.elf
new file mode 100755
index 0000000..6aec39b
--- /dev/null
+++ b/assembly/hello/hello.elf
diff --git a/assembly/hello/hello.hex b/assembly/hello/hello.hex
new file mode 100644
index 0000000..f689ad4
--- /dev/null
+++ b/assembly/hello/hello.hex
@@ -0,0 +1,4 @@
+:100000001705000013054501914873000000A94839

+:100010007300000048656C6C6F2C20776F726C6405

+:04002000210A0000B1

+:00000001FF

diff --git a/assembly/hello/hello.o b/assembly/hello/hello.o
new file mode 100644
index 0000000..2d0bfb3
--- /dev/null
+++ b/assembly/hello/hello.o
diff --git a/assembly/hello/rvcontroller.ld b/assembly/hello/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/hello/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/misa/Makefile b/assembly/misa/Makefile
new file mode 100644
index 0000000..95095b6
--- /dev/null
+++ b/assembly/misa/Makefile
@@ -0,0 +1,26 @@
+# Intentionally less complete default march so that it's still compatible with RVController's minimum configuration
+# (in case someone changed the misa value and wants to decode the new one)
+MARCH ?= rv32ezicsr_zicond
+
+.PHONY: all dump load clean
+
+all: misa.hex
+
+misa.o: misa.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o misa.o misa.S
+
+misa.elf:  misa.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o misa.elf misa.o
+
+dump: misa.elf
+	riscv32-none-elf-objdump -d misa.elf
+
+misa.hex: misa.elf
+	riscv32-none-elf-objcopy -O ihex misa.elf misa.hex
+
+load: misa.hex
+	bash -c "wl-copy < misa.hex"
+
+clean:
+	rm -f misa.bin misa.elf misa.o
+
diff --git a/assembly/misa/misa.S b/assembly/misa/misa.S
new file mode 100644
index 0000000..a360c5e
--- /dev/null
+++ b/assembly/misa/misa.S
@@ -0,0 +1,126 @@
+csrr t0,misa # Read misa
+
+li a5,11 # Print character
+li a0,'R'
+ecall
+li a0,'V'
+ecall
+li a0,'3'
+ecall
+li a0,'2'
+ecall
+
+li t1,1<<8
+and t1,t0,t1
+li a5,11
+li a0,'I'
+czero.eqz a5,a5,t1 # Clear ecall function if bit isn't set
+ecall
+
+li t1,1<<4
+and t1,t0,t1
+li a5,11
+li a0,'E'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<12
+and t1,t0,t1
+li a5,11
+li a0,'M'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<0
+and t1,t0,t1
+li a5,11
+li a0,'A'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<5
+and t1,t0,t1
+li a5,11
+li a0,'F'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<3
+and t1,t0,t1
+li a5,11
+li a0,'D'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<16
+and t1,t0,t1
+li a5,11
+li a0,'Q'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<11
+and t1,t0,t1
+li a5,11
+li a0,'L'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<2
+and t1,t0,t1
+li a5,11
+li a0,'C'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<1
+and t1,t0,t1
+li a5,11
+li a0,'B'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<9
+and t1,t0,t1
+li a5,11
+li a0,'J'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<19
+and t1,t0,t1
+li a5,11
+li a0,'T'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<15
+and t1,t0,t1
+li a5,11
+li a0,'P'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<21
+and t1,t0,t1
+li a5,11
+li a0,'V'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<7
+and t1,t0,t1
+li a5,11
+li a0,'H'
+czero.eqz a5,a5,t1
+ecall
+
+li t1,1<<18
+and t1,t0,t1
+li a5,11
+li a0,'S'
+czero.eqz a5,a5,t1
+ecall
+
+li a5,10
+ecall
diff --git a/assembly/misa/misa.elf b/assembly/misa/misa.elf
new file mode 100755
index 0000000..6f5e949
--- /dev/null
+++ b/assembly/misa/misa.elf
diff --git a/assembly/misa/misa.hex b/assembly/misa/misa.hex
new file mode 100644
index 0000000..4f70427
--- /dev/null
+++ b/assembly/misa/misa.hex
@@ -0,0 +1,29 @@
+:10000000F32210309307B0001305200573000000A1

+:100010001305600573000000130530037300000032

+:1000200013052003730000001303001033F3620074

+:100030009307B00013059004B3D7670E7300000058

+:100040001303000133F362009307B000130550045B

+:10005000B3D7670E730000003713000033F362005C

+:100060009307B0001305D004B3D7670E73000000E8

+:100070001303100033F362009307B000130510045C

+:10008000B3D7670E730000001303000233F362005E

+:100090009307B00013056004B3D7670E7300000028

+:1000A0001303800033F362009307B000130540048C

+:1000B000B3D7670E730000003703010033F362000B

+:1000C0009307B00013051005B3D7670E7300000047

+:1000D000371300001303038033F362009307B0006B

+:1000E0001305C004B3D7670E73000000130340006C

+:1000F00033F362009307B00013053004B3D7670EE3

+:10010000730000001303200033F362009307B00074

+:1001100013052004B3D7670E7300000013030020FB

+:1001200033F362009307B0001305A004B3D7670E42

+:10013000730000003703080033F362009307B00038

+:1001400013054005B3D7670E730000003783000026

+:1001500033F362009307B00013050005B3D7670EB1

+:10016000730000003703200033F362009307B000F0

+:1001700013056005B3D7670E730000001303000872

+:1001800033F362009307B00013058004B3D7670E02

+:10019000730000003703040033F362009307B000DC

+:1001A00013053005B3D7670E730000009307A00056

+:0401B00073000000D8

+:00000001FF

diff --git a/assembly/misa/misa.o b/assembly/misa/misa.o
new file mode 100644
index 0000000..a8b734a
--- /dev/null
+++ b/assembly/misa/misa.o
diff --git a/assembly/misa/rvcontroller.ld b/assembly/misa/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/misa/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/rrxing/Makefile b/assembly/rrxing/Makefile
new file mode 100644
index 0000000..1f19256
--- /dev/null
+++ b/assembly/rrxing/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt
+
+.PHONY: all dump load clean
+
+all: rrxing.hex
+
+rrxing.o: rrxing.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o rrxing.o rrxing.S
+
+rrxing.elf:  rrxing.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o rrxing.elf rrxing.o
+
+dump: rrxing.elf
+	riscv32-none-elf-objdump -d rrxing.elf
+
+rrxing.hex: rrxing.elf
+	riscv32-none-elf-objcopy -O ihex rrxing.elf rrxing.hex
+
+load: rrxing.hex
+	bash -c "wl-copy < rrxing.hex"
+
+clean:
+	rm -f rrxing.bin rrxing.elf rrxing.o
+
diff --git a/assembly/rrxing/rrxing.S b/assembly/rrxing/rrxing.S
new file mode 100644
index 0000000..61fb41c
--- /dev/null
+++ b/assembly/rrxing/rrxing.S
@@ -0,0 +1,198 @@
+li a7,134 # Clear digilines buffer
+ecall
+
+restart:
+# Hardware initialization
+
+# Make sure light is off
+li a7,129 # Send digilines message
+la a0,lightchannel
+la a1,lightoffmsg
+ecall
+
+# Make sure bell is off
+li a7,129 # Send digilines message
+la a0,bellchannel
+la a1,belloffmsg
+ecall
+
+# Make sure gate is up
+li a7,129 # Send digilines message
+la a0,gatechannel
+la a1,gateupmsg
+ecall
+
+receiveloop:
+li a7,133 # Get digilines buffer level
+ecall
+beq a0,x0,receiveloop # If no messages yet, restart the loop
+
+li a7,135 # Read digilines message
+la a0,channelbuf
+li a1,16 # Channel buffer size
+la a2,msgbuf
+li a3,16 # Message buffer size
+ecall
+
+# Check if it's the right channel
+la a0,channelbuf
+la a1,detectchannel
+call strcmp
+beq a0,x0,receiveloop # Not the right channel, ignore it
+
+# Turn the light yellow
+li a7,129 # Send digilines message
+la a0,lightchannel
+la a1,lightyellowmsg
+ecall
+
+# Wait 1 second
+li a0,1
+call sleep
+
+# Turn the bell on
+li a7,129 # Send digilines message
+la a0,bellchannel
+la a1,bellonmsg
+ecall
+
+# Wait 2 seconds
+li a0,2
+call sleep
+
+# Turn the light red
+li a7,129 # Send digilines message
+la a0,lightchannel
+la a1,lightredmsg
+ecall
+
+# Wait 3 seconds
+li a0,3
+call sleep
+
+# Lower the gate
+li a7,129 # Send digilines message
+la a0,gatechannel
+la a1,gatedownmsg
+ecall
+
+# Wait 5 seconds
+li a0,5
+call sleep
+
+# Turn the bell off
+li a7,129 # Send digilines message
+la a0,bellchannel
+la a1,belloffmsg
+ecall
+
+waitlonger:
+
+# Wait 10 seconds
+li a0,10
+call sleep
+
+# Check if any more trains have been detected
+receiveloop2:
+li a7,133 # Get digilines buffer level
+ecall
+beq a0,x0,raise # If no messages yet, go ahead with timing out
+
+# If there is a message, check if it's a train
+
+li a7,135 # Read digilines message
+la a0,channelbuf
+li a1,16 # Channel buffer size
+la a2,msgbuf
+li a3,16 # Message buffer size
+ecall
+
+# Check if it's the right channel
+la a0,channelbuf
+la a1,detectchannel
+call strcmp
+beq a0,x0,receiveloop2 # Not the right channel, ignore this message and go on to the next
+
+# If it is the right channel, then get rid of the rest of the messages (if any)
+li a7,134 # Clear digilines buffer
+ecall
+
+j waitlonger # And go wait another 10 seconds
+
+raise:
+
+# Raise the gate
+li a7,129 # Send digilines message
+la a0,gatechannel
+la a1,gateupmsg
+ecall
+
+# Wait 2 seconds
+li a0,2
+call sleep
+
+# Turn the light off
+li a7,129 # Send digilines message
+la a0,lightchannel
+la a1,lightoffmsg
+ecall
+
+# And go wait for the next train
+j restart
+
+sleep:
+	# Expects a number of seconds in a0
+	# Uses t0
+	rdtime t0
+	add a0,t0,a0
+	sleep_loop:
+	rdtime t0
+	bltu t0,a0,sleep_loop
+ret
+
+strcmp:
+	# Expects string pointers in a0 and a1
+	# Compares until a NUL is reached on the first string
+	# Uses t0, t1, and t2
+	# Returns a0=1 if strings match, a0=0 otherwise
+	li t0,0 # t0 is the loop counter
+	strcmp_loop:
+	# Calculate addresses
+	add t1,a0,t0 # t1 is the pointer for the first string
+	add t2,a1,t0 # t2 is the pointer for the second string
+
+	# Read the bytes from each string
+	lb t1,0(t1)
+	lb t2,0(t2)
+
+	# Increment the loop counter
+	addi t0,t0,1
+
+	# And compare
+	bne t1,t2,strcmp_mismatch
+
+	# Check if a terminator was reached yet, keep going otherwise
+	li t2,0
+	bne t1,t2,strcmp_loop
+
+	# If we got here they match
+	li a0,1
+	ret
+
+	strcmp_mismatch:
+	li a0,0
+	ret
+
+channelbuf: .ascii "                "
+msgbuf: .ascii "                "
+lightchannel: .asciz "light"
+bellchannel: .asciz "bell"
+gatechannel: .asciz "gate"
+lightoffmsg: .asciz "OFF"
+lightyellowmsg: .asciz "YELLOW"
+lightredmsg: .asciz "RED"
+bellonmsg: .asciz "on"
+belloffmsg: .asciz "off"
+gateupmsg: .asciz "up"
+gatedownmsg: .asciz "down"
+detectchannel: .asciz "detect"
diff --git a/assembly/rrxing/rrxing.elf b/assembly/rrxing/rrxing.elf
new file mode 100755
index 0000000..cab0bf9
--- /dev/null
+++ b/assembly/rrxing/rrxing.elf
diff --git a/assembly/rrxing/rrxing.hex b/assembly/rrxing/rrxing.hex
new file mode 100644
index 0000000..7283fa9
--- /dev/null
+++ b/assembly/rrxing/rrxing.hex
@@ -0,0 +1,35 @@
+:1000000093086008730000009308100817050000AB

+:100010001305A51D970500009385251E730000009C

+:1000200093081008170500001305851C97050000AC

+:100030009385C51D73000000930810081705000084

+:100040001305551B970500009385851C7300000060

+:10005000930850087300000065DD930870081705C9

+:10006000000013058516C145170600001306E616A5

+:10007000C14673000000170500001305051597051C

+:10008000000093856519292A61D593081008170582

+:10009000000013058515970500009385451673002C

+:1000A00000000545F520930810081705000013050A

+:1000B0002514970500009385351573000000094548

+:1000C000C1289308100817050000130505129705AD

+:1000D000000093853513730000000D4555289308E3

+:1000E0001008170500001305F5109705000093850B

+:1000F0005512730000001545612893081008170574

+:1001000000001305E50E9705000093852510730088

+:1001100000002945B528930850087300000015CD4C

+:1001200093087008170500001305250AC145170636

+:1001300000001306860AC146730000001705000080

+:100140001305A508970500009385050D912861D535

+:1001500093086008730000006DBF9308100817052E

+:10016000000013053509970500009385650A7300A3

+:1001700000000945312893081008170500001305F1

+:10018000C506970500009385450773000000ADBDC7

+:10019000F32210C01695F32210C0E3EEA2FE828077

+:1001A000814233035500B383550003030300838367

+:1001B00003008502631773008143E31473FE054552

+:1001C00082800145828020202020202020202020A5

+:1001D000202020202020202020202020202020201F

+:1001E0002020202020206C696768740062656C6C98

+:1001F0000067617465004F46460059454C4C4F57A7

+:1002000000524544006F6E006F66660075700064B2

+:0C0210006F776E00646574656374000015

+:00000001FF

diff --git a/assembly/rrxing/rrxing.o b/assembly/rrxing/rrxing.o
new file mode 100644
index 0000000..09193ef
--- /dev/null
+++ b/assembly/rrxing/rrxing.o
diff --git a/assembly/rrxing/rvcontroller.ld b/assembly/rrxing/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/rrxing/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file