FreeCalypso > hg > freecalypso-tools
changeset 987:6b87de9e385b
pln-ppb-test: implement mode-exit
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 03 Dec 2023 00:01:03 +0000 |
| parents | 676203b4bf33 |
| children | 5a6019ed7e72 |
| files | target-utils/pln-ppb-test/cmdtab.c target-utils/pln-ppb-test/mode_entry.c |
| diffstat | 2 files changed, 23 insertions(+), 0 deletions(-) [+] |
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--- a/target-utils/pln-ppb-test/cmdtab.c Sat Dec 02 23:50:07 2023 +0000 +++ b/target-utils/pln-ppb-test/cmdtab.c Sun Dec 03 00:01:03 2023 +0000 @@ -4,6 +4,7 @@ extern void cmd_abbw(); extern void cmd_jump(); extern void cmd_mode_entry(); +extern void cmd_mode_exit(); extern void cmd_r8(); extern void cmd_r16(); extern void cmd_r32(); @@ -27,6 +28,7 @@ {"dump", cmd_memdump_human}, {"jump", cmd_jump}, {"mode-entry", cmd_mode_entry}, + {"mode-exit", cmd_mode_exit}, {"poweroff", abb_power_off}, {"r8", cmd_r8}, {"r16", cmd_r16},
--- a/target-utils/pln-ppb-test/mode_entry.c Sat Dec 02 23:50:07 2023 +0000 +++ b/target-utils/pln-ppb-test/mode_entry.c Sun Dec 03 00:01:03 2023 +0000 @@ -30,3 +30,24 @@ *(volatile u16 *)(addr + 0x554) = 0x55; *(volatile u16 *)(addr + 0xAAA) = mode; } + +void +cmd_mode_exit(argbulk) + char *argbulk; +{ + char *argv[2]; + u_long addr; + + if (parse_args(argbulk, 1, 1, argv, 0) < 0) + return; + if (parse_hexarg(argv[0], 8, &addr) < 0) { + printf("ERROR: argument must be a valid 32-bit hex address\n"); + return; + } + if (addr & 0xFFFF) { + printf("ERROR: address is not on 64 KiB boundary\n"); + return; + } + *(volatile u16 *)addr = 0x90; + *(volatile u16 *)addr = 0x00; +}