FreeCalypso > hg > freecalypso-tools

annotate target-utils/env/crt0.S @ 924:d452188587b4

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rvinterf: begin change to backslash escape output format Right now throughout the rvinterf suite, any time we emit output that is expected to be ASCII, but may contain non-printable garbage, we use 'cat -v' form of garbage character representation. Unfortunately, this transformation is lossy (can't be reversed 100% reliably in the user's wetware), hence we would like to migrate to C-style backslash escapes, including doubling of any already-present backslashes - this escape mechanism is lossless. Begin this change by converting the output of RV and L1 traces in rvinterf and rvtdump.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:10:50 +0000
parents e7502631a0f9
children
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1 #include "halt.h"
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2
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3 .text
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4 .code 32
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5 .global _entry
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6 _entry:
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7 ldr sp, =stack_bottom
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8 @ zero bss
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9 ldr r0, =__bss_start
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10 ldr r2, =__bss_end
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11 sub r1, r2, r0
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12 bl bzero
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13 @ C code entry
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14 bl main
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15 mov r0, #HALTCODE_MAINEXITED
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16 .global _exit
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17 _exit: nop
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18 1: nop
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19 b 1b