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| author | s-ol <s+removethis@s-ol.nu> | 2021-07-06 10:26:46 +0000 |
|---|---|---|
| committer | s-ol <s+removethis@s-ol.nu> | 2021-07-06 11:08:54 +0000 |
| commit | 631f09462050c8173dacb22a83e6ef3dacc3c8a1 (patch) | |
| tree | 4cbd147e158991e229ce1fc2001525078a020b83 /ex.format | |
| parent | good helloworld example (diff) | |
| download | subv-631f09462050c8173dacb22a83e6ef3dacc3c8a1.tar.gz subv-631f09462050c8173dacb22a83e6ef3dacc3c8a1.zip | |
update README/ex example
Diffstat (limited to 'ex.format')
| -rw-r--r-- | ex.format | 13 |
1 files changed, 3 insertions, 10 deletions
@@ -1,6 +1,6 @@ == code 0x80000000 # repeatedly print "Hi\n" -main: +# main: # load 0x10010000 (UART0) into t0 37/7 05/5 10010/20 # store 0x48 (H) in UART0+0 @@ -12,12 +12,5 @@ main: # store 0x0a (\n) in UART0+0 13/7 06/5 0/3 00/5 00a/12 23/7 00/5 2/3 05/5 06/5 00/7 -# jump back up to the top (three versions): -# a) jal 21bit relative (with 0th bit forced to 0) -# 6f/jal 0/rd/x0 main/off21 -# b) auipc+jalr 32bit relative (note label offset) -17/7 07/5 main/off32/[31:12] -67/7 00/5 0/3 07/5 main+4/off32/[11:0] -# c) lui+jalr 32bit absolute -# 37/lui 7/rd/t2 main/imm32 -# 67/jalr 0/subop 0/rd/x0 7/rs/t2 main/imm32 +# jump back up to the top +6f/7 00/5 ff/8 1/1 3f2/10 1/1 |