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Enable bochs terminal output.

This commit is contained in:
Drew Galbraith 2025-05-06 22:26:00 -07:00
parent 5a20c23569
commit 0dfa6008ec
3 changed files with 8 additions and 3 deletions
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1
.bochsrc
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@ -10,3 +10,4 @@ log: bochs.log
romimage: file=/home/drew/opt/bochs/share/bochs/BIOS-bochs-latest romimage: file=/home/drew/opt/bochs/share/bochs/BIOS-bochs-latest
vgaromimage: file=/home/drew/opt/bochs/share/bochs/VGABIOS-lgpl-latest.bin vgaromimage: file=/home/drew/opt/bochs/share/bochs/VGABIOS-lgpl-latest.bin
vga: extension=vbe vga: extension=vbe
port_e9_hack: enabled=1

2
scripts/bochs.sh
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@ -15,5 +15,5 @@ if [[ $1 == "debug" ]]; then
fi fi
# TODO Make this portable, build bochs as a part of toolchain? # TODO Make this portable, build bochs as a part of toolchain?
~/opt/bochs/bin/bochs ~/opt/bochs/bin/bochs $BOCHS_ARGS -q

8
zion/debug/debug.cpp
View File

@ -5,14 +5,18 @@
#define COM1 0x3f8 #define COM1 0x3f8
#define BOCHS_DBG 1
namespace { namespace {
bool is_transmit_empty() { return (inb(COM1 + 5) & 0x20) != 0; } bool is_transmit_empty() { return (inb(COM1 + 5) & 0x20) != 0; }
void dbgputchar(char c) { void dbgputchar(char c) {
while (!is_transmit_empty()) while (!is_transmit_empty());
;
outb(COM1, c); outb(COM1, c);
#if BOCHS_DBG
outb(0xe9, c);
#endif
} }
void dbg(const glcr::StringView& str) { void dbg(const glcr::StringView& str) {