From: notaz Date: Thu, 16 Nov 2023 23:08:45 +0000 (+0200) Subject: psxbios: implement strtol X-Git-Tag: r24l~66 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c30b12e75a5378d327ccb9147a143d90605a489;p=pcsx_rearmed.git psxbios: implement strtol libretro/pcsx_rearmed#288 --- diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c index 56239f20..e654f7c9 100644 --- a/libpcsxcore/psxbios.c +++ b/libpcsxcore/psxbios.c @@ -532,12 +532,8 @@ void psxBios_putc(void) // 0x09, 0x3B pc0 = ra; } -void psxBios_todigit(void) // 0x0a +static u32 do_todigit(u32 c) { - int c = a0; -#ifdef PSXBIOS_LOG - PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]); -#endif c &= 0xFF; if (c >= 0x30 && c < 0x3A) { c -= 0x30; @@ -549,14 +545,73 @@ void psxBios_todigit(void) // 0x0a c = c - 0x41 + 10; } else if (c >= 0x80) { + log_unhandled("todigit %02x\n", c); c = -1; } else { c = 0x0098967F; } - v0 = c; - pc0 = ra; + use_cycles(40); + return c; +} + +static void psxBios_todigit(void) // 0x0a +{ + mips_return(do_todigit(a0)); + PSXBIOS_LOG("psxBios_%s '%c' -> %u\n", biosA0n[0x0a], a0, v0); +} + +static void do_strtol(char *p, void *end_, u32 base, int can_neg) { + s32 n = 0, f = 0, t; + u32 *end = end_; + + use_cycles(12); + if (p == INVALID_PTR) { + mips_return(0); + return; + } + + for (; (0x09 <= *p && *p <= '\r') || *p == ' '; p++) + use_cycles(9); + if (can_neg) { + for (; *p == '-'; f = 1, p++) + use_cycles(4); + } + if (base == 0 || base > 36) + base = 10; + if (*p == '0') { + switch (*p++) { + case 'b': case 'B': base = 2; break; + case 'x': case 'X': base = 16; break; + } + } + else if (*p == 'o' || *p == 'O') { + base = 8; + p++; + } + + for (; (t = do_todigit(*p)) < base; p++) { + n = n * base + t; + use_cycles(12); + } + + n = (f ? -n : n); + if (end != INVALID_PTR) + *end = SWAP32(a0 + (p - Ra0)); + mips_return_c(n, 100); +} + +static void psxBios_strtoul() { // 0x0c + do_strtol(a0 ? Ra0 : INVALID_PTR, a1 ? Ra1 : INVALID_PTR, a2, 0); + PSXBIOS_LOG("psxBios_%s %s (%x), %x, %x -> 0x%x\n", + biosA0n[0x0c], a0 ? Ra0 : NULL, a0, a1, a2, v0); +} + +static void psxBios_strtol() { // 0x0d + do_strtol(a0 ? Ra0 : INVALID_PTR, a1 ? Ra1 : INVALID_PTR, a2, 1); + PSXBIOS_LOG("psxBios_%s %s (%x), %x, %x -> 0x%x\n", + biosA0n[0x0d], a0 ? Ra0 : NULL, a0, a1, a2, v0); } void psxBios_abs() { // 0x0e @@ -3382,8 +3437,8 @@ void psxBiosInit() { biosA0[0x09] = psxBios_putc; biosA0[0x0a] = psxBios_todigit; //biosA0[0x0b] = psxBios_atof; - //biosA0[0x0c] = psxBios_strtoul; - //biosA0[0x0d] = psxBios_strtol; + biosA0[0x0c] = psxBios_strtoul; + biosA0[0x0d] = psxBios_strtol; biosA0[0x0e] = psxBios_abs; biosA0[0x0f] = psxBios_labs; biosA0[0x10] = psxBios_atoi;